JP6997699B2 - Housing design methods, design equipment and programs - Google Patents

Description

The present invention relates to a method for designing a house in which a photovoltaic power generation device is provided on a roof surface and the like.

In recent years, with the tight supply and demand of electricity and the destabilization of energy prices, there is increasing interest in energy-saving housing that introduces renewable energy such as solar power. Among such houses, ZEH (Net Zero Energy House) and LCCM house (life cycle carbon minus house), which has a higher energy saving rate than ZEH, are examples of houses that meet the energy saving standards set by the Ministry of Land, Infrastructure, Transport and Tourism. ) And so on.

In order to design an energy-saving house as described above, it is necessary to know the energy consumption performance of the house. For the calculation of energy consumption performance, for example, the program of Non-Patent Document 1 below is used.

National Research and Development Corporation Building Research Institute, "Energy consumption performance calculation program (residential version)", [online], [Search on November 14, 2018], Internet <URL: http://house.app.lowenergy.jp /> ＞ ＞

In the above program, multiple pieces of information based on various specifications of the house, which are necessary for calculating the energy consumption performance, are input. This information includes, for example, information that can be determined only after the planning such as the specific floor plan of the house and the equipment specifications is confirmed. Therefore, in the past, it was not possible to calculate the energy consumption performance of a house and the specifications of the corresponding photovoltaic power generation device at the initial stage of designing the house (for example, before planning).

For this reason, when the energy consumption performance of a house is calculated in the late stage of design (for example, after planning) when the design of the house has advanced to some extent, the specifications and costs of the corresponding photovoltaic power generation device are assumed by the owner. It can be far from that. In such a case, there is a problem that the efficiency of the house design may be lowered such that the house needs to be redesigned, or the solar power generation device may be excessively mounted.

The present invention has been devised in view of the above circumstances, and an object of the present invention is to provide a method and the like capable of efficiently designing a house that satisfies the energy saving request of the owner.

The present invention is a method for designing a house having a photovoltaic power generation device on the roof surface, the process of acquiring energy saving request information which is information on the degree of energy saving of the house desired by the owner, and the energy consumption performance of the house. The process of acquiring the first design information which is a part of the plurality of housing design information necessary for calculating the above, and the second design information which is the remaining information of the plurality of housing design information are the first. The energy is based on the first design information and the estimated second design information before the second design information is determined between the step of estimating using the design information and the owner. Primary information on the specifications of the photovoltaic power generation device that satisfies the energy saving request information based on the calculated energy consumption performance in the process of calculating the consumption performance and the stage before the second design information is determined. It is characterized by including a step of calculating.

In the housing design method according to the present invention, a step of determining the second design information and a step of recalculating the energy consumption performance based on the first design information and the determined second design information. And, based on the recalculated energy consumption performance, a step of calculating secondary information regarding the specifications of the photovoltaic power generation device that satisfies the energy saving request information may be included.

In the method for designing a house according to the present invention, the energy saving request information may include a first energy saving standard and a second energy saving standard which is a stricter energy saving standard than the first energy saving standard.

In the method of designing a house according to the present invention, the first design information includes information for specifying a planned construction site of the house, floor area of the house, and information regarding the presence or absence of all-electricity of the house. good.

In the method of designing a house according to the present invention, the second design information may be information on the house determined after the floor plan of the house is determined.

In the housing design method according to the present invention, the step of estimating the second design information is a step of estimating the second design information using the first design information and a predetermined relational expression. It may be included.

In the method for designing a house according to the present invention, the second design information may include the floor area of the living room of the house, the floor area of a living room other than the living room, and the floor area of a non-living room.

In the method for designing a house according to the present invention, the second design information may include the average thermal transmission rate of the outer skin of the house, the average thermal heat acquisition rate in the cooling period, and the average solar heat acquisition rate in the heating period.

In the housing design method according to the present invention, the specifications of the photovoltaic power generation device may be a required number of outputs that satisfy the energy saving request information.

The present invention is an energy saving request acquisition unit for inputting energy saving request information which is information on the degree of energy saving of the house desired by the owner, which is a housing design device having a solar power generation device on the roof surface, and the house. The first design information acquisition unit that acquires the first design information that is a part of the plurality of housing design information necessary for calculating the energy consumption performance of the above, and the remaining information of the plurality of housing design information. The first design information and the above are before the second design information is determined between the second design information estimation unit that estimates the second design information using the first design information and the owner. The energy consumption performance calculation unit that calculates the energy consumption performance based on the estimated second design information, and the energy consumption performance calculated before the second design information is determined. It is characterized by including a primary information calculation unit that calculates primary information regarding the specifications of the solar power generation device that satisfies the energy saving request information.

The present invention is a program for causing a computer to execute a method for designing a house having a solar power generation device on a roof surface, and is information on the degree of energy saving of the house desired by the owner. The process of acquiring energy saving request information, the process of acquiring the first design information which is a part of the plurality of housing design information necessary for calculating the energy consumption performance of the house, and the plurality of housing design information. The first design information and the step before the second design information is determined between the step of estimating the second design information which is the remaining information of the above using the first design information and the owner. The energy saving request based on the calculated energy consumption performance in the step of calculating the energy consumption performance based on the estimated second design information and in the stage before the second design information is determined. It is characterized by executing a step of calculating primary information regarding the specifications of the solar power generation device that satisfies the information.

The housing design method of the present invention includes a process of acquiring energy saving request information which is information on the degree of energy saving of the house desired by the owner, and a plurality of housing design information necessary for calculating the energy consumption performance of the house. A step of acquiring the first design information which is a part of the above, and a step of estimating the second design information which is the remaining information of the plurality of housing design information by using the first design information are included. There is. Further, the method for designing a house of the present invention is based on the first design information and the estimated second design information before the second design information is determined with the owner. It includes a step of calculating the energy consumption performance and a step of calculating the primary information regarding the specifications of the photovoltaic power generation device satisfying the energy saving request information based on the calculated energy consumption performance.

In the design method, at the initial stage of designing the house (for example, before planning), the energy consumption performance of the house and the corresponding specifications of the photovoltaic power generation device (the primary information) can be calculated. can. As a result, the design method is based on the specifications and costs of the photovoltaic power generation device corresponding to the calculation of the energy consumption performance of the house in the late stage of design (for example, after planning) in which the design of the house has advanced to some extent. However, it is possible to prevent the owner from exceeding the expected range. Therefore, since the design method of the present invention can prevent the situation where the house needs to be redesigned, it is possible to efficiently design the house that satisfies the energy saving request of the owner.

It is a block diagram which shows an example of the computer (design apparatus) in which the design method of a house is carried out. It is a flowchart which shows an example of the processing procedure of the house design method. It is a figure which shows an example of the screen which displayed the option of the energy saving request information. It is a flowchart which shows an example of the processing procedure of the 1st acquisition process. It is a figure which shows an example of the screen for inputting "information for specifying the planned construction site of a house" of 1st design information. It is a figure which shows an example of the screen for inputting the "floor area of a house" of the 1st design information. It is a figure which shows an example of the screen for inputting the "presence or absence of all electrification of a house" of the 1st design information. It is a flowchart which shows an example of the processing procedure of the 2nd estimation process. It is a figure which shows an example of the screen which output the primary information about the specification of a photovoltaic power generation apparatus. It is a flowchart which shows an example of the processing procedure of the house design method of another embodiment of this invention. Area classification: 3, All-electric, and ZEH houses, it is a graph showing the relationship between the floor area of the house and the primary information. It is a graph which shows the relationship between the primary information of the stage before the 2nd design information is decided, and the secondary information after the 2nd design information is decided.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In the housing design method of the present embodiment (hereinafter, may be simply referred to as "design method"), a house having a solar power generation device on the roof surface is designed.

FIG. 1 is a block diagram showing an example of a computer (design device) in which the design method of the present embodiment is implemented. The computer 1 of the present embodiment has an input unit 2 as an input device, an output unit 3 as an output device, and an arithmetic processing unit 4 for calculating energy consumption performance and the like, which will be described later, for designing a house. It is configured as the design device 5 of. For the computer 1, for example, a personal computer, a tablet-type mobile information, or the like can be adopted.

For the input unit 2, for example, a keyboard, a mouse, a touch panel, or the like is used. For the output unit 3, for example, a display device, a printer, or the like is used. The arithmetic processing device 4 includes an arithmetic unit (CPU) 6 that performs various arithmetic operations, a storage unit 7 that stores data, programs, and the like, and a working memory 8.

The storage unit 7 is a non-volatile information storage device including, for example, a magnetic disk, an optical disk, an SSD, or the like. The storage unit 7 is provided with a data unit 9 and a program unit 10.

The data unit 9 is for storing information necessary for designing a house. The data unit 9 of the present embodiment includes an energy saving request storage unit 11, a first design information storage unit 12, a second design information storage unit 13, an energy consumption performance storage unit 14, a primary information storage unit 15, and a secondary information unit. A storage unit 16 and a design data storage unit 17 are included.

The program unit 10 is a program for causing the computer 1 (calculation unit 6) to execute the design method of the present embodiment. The program unit 10 of the present embodiment includes an energy saving request acquisition unit 21, an energy saving request judgment unit 22, a first design information acquisition unit 23, a second design information determination unit 24, a second design information estimation unit 25, and a consumption performance calculation unit. 26, a primary information calculation unit 27, a secondary information calculation unit 28, a housing design unit 29, and an allowable range determination unit 30 are included.

In this embodiment, for example, a house that meets the energy saving standard set by the Ministry of Land, Infrastructure, Transport and Tourism is designed. Among multiple energy-saving standards, ZEH (Net Zero Energy House) and Nearly ZEH (Nearly), which have a lower energy-saving rate than ZEH, are examples of houses (energy-saving houses) that meet the 2018 energy-saving standards (ZEH standards).・ Net Zero Energy House) and LCCM House (Life Cycle Carbon Minus House), which has a higher energy saving rate than ZEH. The design method of this embodiment can be used for all designs of ZEH, Nearly ZEH, and LCCM houses, but may be used only for any one of the designs.

ZEH is a house that aims to reduce the balance of primary energy consumption to zero (that is, to reduce primary energy consumption by 100%) by introducing renewable energy such as sunlight. On the other hand, Nearly ZEH is a house that aims to reduce primary energy consumption by 75% to 100% (75% in this example).

LCCM homes are homes that reduce CO ₂ emissions throughout their life cycle, including during construction, operation, and disposal, by introducing renewable energy such as sunlight. That is, in an LCCM house, the balance of primary energy consumption, which is the sum of the primary energy consumption during operation and the primary energy consumption of materials used during construction, demolition, and reuse of the house, is negative (that is, during operation and construction). , Reduce primary energy consumption during dismantling and reuse by 100% or more).

In order to design an energy-saving house as described above, it is necessary to know the energy consumption performance (primary energy consumption) of the house. For the calculation of energy consumption performance, for example, the program of Non-Patent Document 1 is used.

In the above program, a plurality of information (hereinafter, may be simply referred to as "house design information") based on various specifications of the house, which are necessary for calculating the energy consumption performance, are input. For details of housing design information, see Non-Patent Document 1 above and Prior Art Document (National Research and Development Corporation Building Research Institute, "Technical Information on Evaluation of Energy Consumption Performance Compliant with 2016 Energy Conservation Standards (Housing)", [Online], [Search on November 14, 2018], Internet <URL: https://www.kenken.go.jp/becc/house.html>), etc.

The plurality of housing design information includes a first design information which is a part of the plurality of housing design information and a second design information which is the remaining information of the plurality of housing design information.

The first design information of the present embodiment is information that can be determined at the request of the owner before the planning of the specific layout of the house and the equipment specifications is finalized. The first design information can be appropriately selected as long as it is information that can be determined before the planning is finalized. The first design information of the present embodiment includes "information for specifying the planned construction site of the house", "floor area of the house", and "information regarding the presence or absence of all-electricity of the house".

The first design information "information for specifying the planned construction site of a house" corresponds to "regional classification" and "designation of annual solar radiation area classification" in the program of Non-Patent Document 1 above. The "regional division" is a division in which cities, towns and villages nationwide are divided into eight regions (regional divisions 1 to 8) mainly based on the outside air condition. The "annual solar radiation area classification" is a regional classification that classifies the whole of Japan into five areas from the area with low solar radiation to the area with high solar radiation, using the annual integrated value of the total solar radiation on the horizontal plane as an index. This information is determined based on the planned construction site of the house desired by the owner.

The "floor area of a house" in the first design information corresponds to the "total floor area (m ² )" in the program of Non-Patent Document 1 above. The "total floor area" is, for example, the total value of "the floor area of the main living room (m ² )", "the floor area of other living rooms (m ² )", and "the floor area of the non-living room (m ² )". Is. The "main living room" is a living room provided in a house that has a long living time in daily life excluding sleeping, and corresponds to a living room. "Other living rooms" are living rooms other than the main living room (living room) among the living rooms provided in the house. "Non-living room" refers to a space other than the living room, and corresponds to, for example, a toilet, a washroom, a bathroom, and the like. Of the above floor areas, the "total floor area (m ² )" is determined based on the size of the house desired by the owner.

The "presence or absence of all-electric homes" in the first design information corresponds to "hot water supply equipment", "hot water supply heat source machine", etc. in the program of Non-Patent Document 1 above. "Hot water supply equipment" is an item for determining the presence or absence of hot water supply equipment. For the "hot water supply facility" of the present embodiment, "there is a hot water supply facility (there is a bathroom, etc.)" is selected in both the case of all-electricity and the case of not all-electricity. On the other hand, the "hot water heat source machine" is an item that specifies the type of water heater. In the present embodiment, in the case of all-electricity, the "electric heat pump water heater" is selected as the hot water supply heat source machine. On the other hand, if it is not all-electric, a "gas latent heat recovery type water heater" is selected as the hot water supply heat source machine. This information is determined based on the hot water supply method or the like desired by the owner.

Unlike the first design information, the second design information is information that is determined after the floor plan of the house is determined (after the planning is confirmed). The second design information of the present embodiment includes the floor area of the living room, the floor area of the living room other than the living room, and the floor area of the non-living room. The living room, living rooms other than the living room, and non-living rooms are as described above.

The "floor area of the living room" in the second design information corresponds to the "floor area of the main living room" in the program of Non-Patent Document 1. The "floor area of the living room other than the living room" in the second design information corresponds to the "floor area of the other living room". The "non-living room area" in the second design information corresponds to the value obtained by subtracting the total value of the "floor area of the main living room" and the "floor area of other living rooms" from the "total floor area".

Further, the second design information of the present embodiment includes the area of the outer skin, the average thermal transmission rate of the outer skin of the house, the average thermal heat acquisition rate in the cooling period, and the average solar heat acquisition rate in the heating period.

The "area of the outer skin" of the second design information corresponds to the "total area of the outer skin" in the program of the above-mentioned non-patent document 1. The total area of the outer skin is the ceiling in contact with the outside air (the roof if the attic or the ceiling does not communicate with the outside air), walls, floors, openings, and buildings other than the unit dwelling unit. It is the total value of the area of the part in contact with the part of.

The "average thermal transmission rate of the outer skin of a house" in the second design information corresponds to the "average thermal transmission rate of the outer skin ( _UA )" in the program of Non-Patent Document 1. The thermal average heat transmission rate of the outer skin is a value obtained by dividing the total heat loss amount (excluding the heat loss amount due to ventilation) per 1 ° C. temperature difference between the inside and outside of the unit dwelling unit by the area of the outer skin (total of the outer skin area).

The "average solar heat gain rate during the cooling period" in the second design information corresponds to the "average solar heat gain rate during the cooling period (η _AC )" in the program of Non-Patent Document 1. The average solar heat gain rate during the cooling period is a value obtained by dividing the amount of solar radiation incident from each part of the outer skin such as the roof, the outer wall, and the window by the area of the outer skin (total of the outer skin area) in the cooling period.

The "average solar heat gain rate during the heating period" in the second design information corresponds to the "average solar heat gain rate during the heating period (η _AH )" in the program of Non-Patent Document 1. The average solar heat acquisition rate during the heating period is a value obtained by dividing the amount of solar radiation incident from each part of the outer skin such as the roof, the outer wall, and the window by the total area of the outer skin during the heating period.

Further, the second design information of the present embodiment is based on the program of Non-Patent Document 1 described above, "use of ventilation in the main room", "use of ventilation in other rooms", "use of heat storage", and "underfloor". "Use of ventilation method to introduce outside air via space", "Selection of heating method", "Selection of heating equipment for main room and other rooms", "Selection of cooling method", and "Main room" And selection of other air-conditioning equipment in the living room. " Further, the second design information of the present embodiment is based on the program of Non-Patent Document 1 above, "selection of ventilation equipment method", "evaluation method when installing duct type ventilation equipment", "ventilation frequency". , "Installation of heat exchange type ventilation equipment", "Piping method", "Water faucet", "Bathtub", "Akiaki of main living room", "Solar power generation equipment", "Liquid heat collection type solar heat utilization equipment", Includes "air-collecting solar heat utilization equipment" and "cogeneration equipment". Details of the values input to these second design information are as described in Non-Patent Document 1 and Prior Art Documents.

In the program of Non-Patent Document 1, the energy consumption performance (primary energy consumption) of the house is calculated by inputting the first design information and the second design information.

As described above, the second design information is information determined after the planning is finalized. Therefore, in the past, it was not possible to calculate the energy consumption performance of a house and the specifications of the corresponding photovoltaic power generation device at the initial stage of designing the house (for example, before planning).

For this reason, when the energy consumption performance of a house is calculated in the late stage of design (for example, after planning) when the design of the house has advanced to some extent, the specifications and costs of the corresponding photovoltaic power generation device are assumed by the owner. It can be far from that. In such a case, there is a problem that the efficiency of the house design is lowered, such as the need to redesign the house.

In the design method of the present embodiment, the second design information is estimated using the first design information, so that the energy consumption performance and the photovoltaic power generation can be performed at the stage before the second design information is determined (before planning). The primary information about the device specifications is being calculated. FIG. 2 is a flowchart showing an example of a processing procedure of a house design method.

In the design method of this embodiment, first, energy saving request information is acquired (process S1). The energy saving request information is information on the degree of energy saving of the house desired by the owner. The energy saving request information of this embodiment includes the first energy saving standard and the second energy saving standard which is a stricter energy saving standard than the first energy saving standard.

The first energy saving standard and the second energy saving standard can be appropriately selected. As the second energy saving standard of this embodiment, the energy standard recommended for housing (in this example, the 2018 energy saving standard (ZEH standard)) is selected from the current energy saving standards. On the other hand, as the first energy saving standard, any energy saving standard lower than the second energy saving standard can be appropriately selected. The 1992 energy saving standard is selected as the first energy saving standard of this embodiment.

In step S1, first, as shown in FIG. 1, the energy saving request acquisition unit 21 of the program unit 10 is read into the working memory 8. Then, the energy saving request acquisition unit 21 is executed by the calculation unit 6. FIG. 3 is a diagram showing an example of a screen on which options for energy saving request information are displayed.

In step S1, the output unit 3 (display device) of the design device 5 displays options for energy saving request information. The output unit 3 of the present embodiment has an option button 31 of the 1992 energy saving standard (that is, the first energy saving standard) and an option button 32 of the 2018 energy saving standard (ZEH standard) (that is, the second energy saving standard). Is displayed. Next, in step S1, the owner or the like selects an option button for the energy saving standard (either the first energy saving standard or the second energy saving standard) desired by the owner, and the "Next" button 37 is pressed. As a result, in step S1, the selected energy saving standard is specified as energy saving request information and stored in the energy saving request storage unit 11.

Next, in the design method of the present embodiment, it is determined whether or not the energy saving request information is the second energy saving standard (process S2). In step S2, first, as shown in FIG. 1, the energy saving request information stored in the energy saving request storage unit 11 and the energy saving request determination unit 22 of the program unit 10 are input to the work memory 8. Then, the energy saving request determination unit 22 is executed by the calculation unit 6.

When the energy saving request information is determined to be the second energy saving standard in the step S2 (“Y” in the step S2), the next first acquisition step S3 is executed. On the other hand, when it is determined that the energy saving request information is not the second energy saving standard (that is, it is the first energy saving standard) (“N” in step S2), a message to the effect that the first energy saving standard is not recommended (illustrated). (Omitted) is output to the output unit 3 (step S4), and steps S1 and S2 are performed again. As a result, in the design method of the present embodiment, when the second energy saving standard is not selected, for example, it is possible to obtain an opportunity to explain to the owner the importance and merits of satisfying the second energy saving standard. It will be possible to design a house with a high energy saving rate (compliant with the second energy saving standard) after having the owner understand its importance.

Next, in the design method of the present embodiment, the first design information is acquired (first acquisition step S3). In the first acquisition step S3 of the present embodiment, the above-mentioned first design information "information for specifying the planned construction site of the house", "floor area of the house" and "information regarding the presence or absence of all-electricity of the house" are acquired. To.

In the first acquisition step S3, first, as shown in FIG. 1, the first design information acquisition unit 23 of the program unit 10 is read into the working memory 8. Then, the first design information acquisition unit 23 is executed by the calculation unit 6. FIG. 4 is a flowchart showing an example of the processing procedure of the first acquisition step S3.

In the first acquisition process S3 of the present embodiment, first, the first design information "information for specifying the planned construction site of the house" is acquired (process S31). FIG. 5 is a diagram showing an example of a screen for inputting information for specifying a planned construction site of a house.

In step S31, first, a text box 33 for inputting the postal code of the planned construction site of the house is displayed on the output unit 3 (display device) of the design device 5. Next, in step S31, the zip code is input to the text box 33 by the owner or the like, and the "Next" button 38 is pressed. As a result, in step S31, the "regional classification" and the "designation of the annual solar radiation region classification" in the program of the non-patent document 1 are specified based on the input zip code. For these identifications, for example, it is desirable to use a database in which a zip code is associated with "regional classification" and "designation of annual solar radiation area classification". Thereby, in the present embodiment, the "regional division" and the "designation of the annual solar radiation area classification" can be easily specified from the postal code of the planned construction site of the house.

The specified "regional classification" and "designation of annual solar radiation area classification" are stored in the first design information storage unit 12 as "information for specifying the planned construction site of the house" of the first design information. .. When the "return" button 41 is pressed in FIG. 5, it is desirable that the step S1 for displaying the screen shown in FIG. 3 and acquiring the energy saving request information is performed.

Next, in the first acquisition step S3 of the present embodiment, the "floor area of the house" of the first design information is acquired (process S32). FIG. 6 is a diagram showing an example of a screen for inputting a “floor area of a house”. In step S32, first, a text box 34 for inputting the floor area of the house is displayed on the output unit 3 (display device) of the design device 5. Next, in step S32, the floor area of the house is input to the text box 34 by the owner or the like, and the "Next" button 39 is pressed. As a result, in step S32, the input floor area of the house is specified as the "total floor area" in the program of Non-Patent Document 1. The specified total floor area is stored in the first design information storage unit 12 as the "floor area of the house" of the first design information. In addition, in FIG. 6, when the "back" button 42 is pressed, the step S31 for displaying the screen shown in FIG. 5 and acquiring "information for specifying the planned construction site of the house" of the first design information is performed. It is desirable to be implemented.

Next, in the first acquisition process S3 of the present embodiment, the "presence or absence of all-electricity of the house" of the first design information is acquired (process S33). FIG. 7 is a diagram showing an example of a screen for inputting “whether or not the house is all-electric”. In step S33, first, the output unit 3 (display device) of the design device 5 displays options regarding whether or not the house is all-electric (in this example, whether or not all-electricity is desired). The output unit 3 of the present embodiment displays a yes (that is, wants all-electricity) option button 35 and a no (that is, does not want all-electricity) option button 36.

Next, in step S33, one of the option buttons 35 and 36 is selected by the owner or the like, and the "Next" button 40 is pressed. Thereby, in step S33, the "hot water supply equipment" and the "hot water supply heat source machine" in the program of the non-patent document 1 are specified based on any of the selected option buttons 35 and 36.

In FIG. 7, when the option button 35 of "Yes (that is, all-electricity is desired)" is selected, "There is a hot water supply facility (there is a bathroom, etc.)" is selected as the "Hot water supply facility", and , "Electric heat pump water heater" is selected as the "hot water heat source machine". On the other hand, in FIG. 7, when the option button 36 of "No (that is, not wanting to be all-electric)" is selected, "There is a hot water supply facility (there is a bathroom, etc.)" is selected as the "Hot water supply facility". In addition, a "gas latent heat recovery type water heater" is selected as the "hot water supply heat source machine". The selected "hot water supply equipment" and "hot water supply heat source machine" are stored in the first design information storage unit 12 as "presence or absence of all-electricity of the house" of the first design information. In addition, in FIG. 7, when the "back" button 43 is pressed, the step S32 of displaying the screen shown in FIG. 6 and acquiring the "floor area of the house" of the first design information is carried out. desirable.

Next, in the design method of the present embodiment, the second design information is estimated using the first design information (second estimation step S5). In the second estimation step S5, the second design information is estimated before the second design information is determined with the client.

In the second estimation step S5, first, as shown in FIG. 1, the first design information stored in the first design information storage unit 12 and the second design information estimation unit 25 of the program unit 10 work. It is read into the memory 8. Then, the second design information estimation unit 25 is executed by the calculation unit 6. FIG. 8 is a flowchart showing an example of the processing procedure of the second estimation step S5.

In the second estimation step S5 of the present embodiment, first, the second design information is estimated using the first design information and the predetermined relational expression (step S51). In step S51, among the above-mentioned second design information, the floor area of the living room, the floor area of the living room other than the living room, the floor area of the non-living room, and the area of the outer skin are estimated.

In step S51, the floor area F1 of the living room of the second design information and the living room are used by using the floor area (total floor area) F of the house of the first design information and the following relational expressions (1) to (4). The floor area F2 of the living room other than the room, the floor area F3 of the non-living room, and the area F4 of the outer skin are estimated.
F1 = 0.34 × F ... (1)
F2 = 0.35 × F ... (2)
F3 = 0.31 × F ... (3)
F4 = 2.7 × F ... (4)

The above relational expressions (1) to (4) are obtained by multiplying the floor area (total floor area) F of the house by a predetermined coefficient. The coefficients (0.34, 0.35 and 0.31) of the relational expressions (1) to (3) are the ratio of each floor area F1 to F3 to the floor area (total floor area) F of the house. These coefficients are set, for example, based on the performance of the houses that have been built so far.

The coefficient (2.7) of the relational expression (4) is the ratio of the area of the outer skin to the floor area (total floor area) F of the house. Such coefficients are set, for example, based on the performance of the houses that have been built so far. As described above, in the design method of the present embodiment, it is possible to estimate the second design information determined after the floor plan of the house is determined (after the planning is confirmed) in the initial stage of designing the house (for example, before planning). can. The above relational expressions (1) to (4) are examples, and can be appropriately changed, for example, based on the actual results of the houses constructed so far.

Next, in the second estimation step S5 of the present embodiment, the second design information is estimated from the first design information (step S52). In step S52, first, the second design information "average thermal transmission rate of the outer skin of the house", "average thermal heat acquisition rate in the cooling period", and "average solar heat acquisition rate in the heating period" are estimated. These second design information are substantially the same for houses in the same planned construction site, but tend to be significantly different in houses in different areas. In particular, in the case of industrialized houses whose specifications have been determined to some extent, they tend to be almost the same in houses in the same area. Therefore, in the process S52 of the present embodiment, the above-mentioned is based on the first design information "information for specifying the planned construction site of the house (that is," area classification "and" designation of annual solar radiation area classification ")". The second design information is estimated.

In the process S52 of the present embodiment, for example, the first design information "information for specifying the planned construction site of the house (in this example, the designation of the area classification and the annual solar radiation area classification)" and the second design information. It is desirable to use a database that corresponds to the "average thermal transmission rate of the outer skin of a house", "average thermal heat acquisition rate during the cooling period", and "average thermal heat acquisition rate during the heating period". In addition, the numerical values of "Average thermal transmission rate of the outer skin of the house", "Average thermal heat acquisition rate during the cooling period" and "Average thermal heat acquisition rate during the heating period" in the second design information are for the houses that have been constructed so far. It is set based on actual results. As a result, in step S52, based on the first design information "information for specifying the planned construction site of the house", the second design information "average thermal transmission rate of the outer skin of the house" and "average solar heat acquisition during the cooling period" are acquired. The "rate" and the "average thermal heat gain rate during the heating period" can be easily estimated.

Next, in step S52, the second design information "use of ventilation in the main room", "use of ventilation in other rooms", "use of heat storage", "ventilation method to introduce outside air via the underfloor space". "Use of", "Selection of heating method", "Selection of heating equipment for the main room and other rooms", "Selection of cooling method", and "Selection of cooling equipment for the main room and other rooms" Is estimated.

Further, in step S52, the second design information "selection of ventilation equipment method", "evaluation method when installing duct type ventilation equipment", "ventilation frequency", "installation of heat exchange type ventilation equipment", " "Piping method", "water faucet", "tub", "Akiaki of main living room", "solar power generation equipment", "liquid heat collecting type solar heat utilization equipment", "air heat collecting type solar heat utilization equipment", and "Cogeneration equipment" is estimated.

These second design information are also substantially the same for houses in the same planned construction site, but tend to be significantly different for houses in different areas. Therefore, in the process S52 of the present embodiment, the above-mentioned is based on the first design information "information for specifying the planned construction site of the house (that is," area classification "and" designation of annual solar radiation area classification ")". The second design information is estimated.

In this embodiment, for example, the first design information "information for specifying the planned construction site of the house (in this example, the designation of the area classification and the annual solar radiation area classification)" and the above-mentioned second design information It is desirable to use a database that corresponds to. Thereby, in the process S52, the above-mentioned second design information can be easily estimated based on the "information for specifying the planned construction site of the house" of the first design information.

As described above, in the second estimation step S5, the first design information is used in the stage before the second design information is determined with the owner (that is, in the initial stage of designing the house (for example, before planning)). Then, the second design information can be estimated. The estimated second design information is stored in the second design information storage unit 13.

Next, in the design method of the present embodiment, the energy consumption performance is calculated based on the first design information and the estimated second design information (step S6). In step S6 of the present embodiment, the energy consumption performance is calculated before the second design information is determined with the owner.

In step S6, first, as shown in FIG. 1, the first design information stored in the first design information storage unit 12, the second design information stored in the second design information storage unit 13, and the second design information are stored in the second design information storage unit 13. The consumption performance calculation unit 26 of the program unit 10 is read into the work memory 8. Then, the consumption performance calculation unit 26 is executed by the calculation unit 6.

In step S6, the first design information and the estimated second design information are, for example, the above-mentioned program of Non-Patent Document 1 and the energy consumption performance calculation program (house) provided by the National Research and Development Corporation Building Research Institute. Version) Entered in the API. As a result, in step S6, the energy consumption performance (primary energy consumption (GJ / year)) can be calculated before the second design information is determined with the client. The calculated energy consumption performance is stored in the energy consumption performance storage unit 14.

Next, in the design method of the present embodiment, the primary information regarding the specifications of the photovoltaic power generation device is calculated based on the calculated energy consumption performance (step S7). In step S7 of the present embodiment, the primary information is calculated before the second design information is determined with the client.

In step S7, first, as shown in FIG. 1, the energy consumption performance stored in the energy consumption performance storage unit 14 and the primary information calculation unit 27 of the program unit 10 are read into the work memory 8. Is done. Then, the primary information calculation unit 27 is executed by the calculation unit 6.

The primary information relates to the specifications of the photovoltaic power generation device that satisfies the energy saving request information. The specifications of this embodiment are the required number of outputs that satisfy the energy saving request information. As described above, the second energy saving standard (2018 energy saving standard (ZEH standard)) is selected as the energy saving request information. Therefore, in step S7 of the present embodiment, the number of outputs of the ZEH, the Nearly ZEH, and the photovoltaic power generation device required for the LCCM house, which satisfy the second energy saving standard, are calculated. It should be noted that only one of these output numbers may be calculated.

In step S7 of the present embodiment, first, the number of outputs (W) of the photovoltaic power generation device required for ZEH is calculated. As mentioned above, ZEH is a house that aims to reduce the balance of primary energy consumption to zero (that is, to reduce primary energy consumption by 100%). Therefore, in step S7, the energy consumption performance (primary energy consumption (GJ / year)) calculated in step S6 is converted into W (watt), so that the number of outputs of the photovoltaic power generation device required for ZEH can be increased. It is calculated.

Next, in step S7 of the present embodiment, the number of outputs (W) of the photovoltaic power generation device required for the Nearly ZEH is calculated. As mentioned above, Nearly ZEH is a house that aims to reduce primary energy consumption by 75% to 100% (75% in this example). In step S7 of the present embodiment, first, the energy consumption performance (primary energy consumption (GJ / year)) value calculated in step S6 is converted into W (watt). This converted value is the number of outputs of the photovoltaic power generation device required to reduce the primary energy consumption by 100%. Then, by multiplying this converted value by, for example, 0.75, the number of outputs (W) of the photovoltaic power generation device required for Nearly ZEH aiming at a 75% reduction in primary energy consumption can be calculated.

Next, in step S7 of the present embodiment, the number of outputs (W) of the photovoltaic power generation device required for the LCCM house is calculated. As mentioned above, the LCCM house has a negative (that is, primary) balance of primary energy consumption, which is the sum of the primary energy consumption during operation and the primary energy consumption of materials used during construction, dismantling, and reuse of the house. The aim is to reduce energy consumption by 100% or more). In step S7 of the present embodiment, first, the energy consumption performance (primary energy consumption (GJ / year)) calculated in step S6 is converted into W (watt). This converted value is the number of outputs of the photovoltaic power generation device for one year required to reduce the primary energy consumption by 100%. Then, the number of outputs (for example, 5 kW) of the photovoltaic power generation device required to reduce the primary energy consumption of the materials used at the time of construction, dismantling, and reuse by 100% is added to this converted value. Then, the number of outputs (W) of the photovoltaic power generation device required for the LCCM house can be calculated. It is desirable that the number of outputs to be added is set based on the actual results of the houses that have been constructed so far.

Next, in step S7, the primary information regarding the specifications of the photovoltaic power generation device is displayed on the output unit 3 (display device) of the design device 5. FIG. 9 is a diagram showing an example of a screen on which primary information regarding the specifications of the photovoltaic power generation device is output. In this embodiment, the number of outputs of the ZEH, the Nearly ZEH, and the photovoltaic power generation device required for the LCCM house are displayed, respectively. Based on these primary information (number of outputs), the owner can determine the specifications and costs of ZEH, Nearly ZEH, and photovoltaic power generation equipment required for LCCM housing at the initial stage of housing design (for example, before planning). It can be easily grasped. The primary information is stored in the primary information storage unit 15 shown in FIG.

As described above, in the design method of the present embodiment, the energy consumption performance of the house and the corresponding specifications (primary information) of the photovoltaic power generation device are calculated at the initial stage of the design of the house (for example, before planning). can do. As a result, the design method of the present embodiment can grasp the specifications and costs of the photovoltaic power generation device in advance, so that the energy consumption performance can be determined at the late stage of design (for example, after planning) when the design of the house has advanced to some extent. When calculated, it is possible to prevent the specifications and costs of the corresponding photovoltaic power generation device from exceeding the owner's assumption. Therefore, since the design method of the present embodiment can prevent the situation where the house needs to be redesigned, it is possible to efficiently design the house that satisfies the energy saving request of the owner.

In FIG. 9, when the "Next" button 44 is pressed, the next step S8 is performed. On the other hand, when the "back" button 45 is pressed, it is desirable to display the screen shown in FIG. 7 and carry out the step S33 to acquire the first design information "whether or not the house is all-electric".

Next, in the design method of the present embodiment, the second design information is determined (step S8). In step S8 of the present embodiment, first, the primary information stored in the primary information storage unit 15 and the second design information determination unit 24 of the program unit 10 are read into the work memory 8. Then, the second design information determination unit 24 is executed by the calculation unit 6.

In step S8, first, based on the primary information regarding the specifications of the photovoltaic power generation device, information such as specific floor plans and equipment specifications desired by the owner is acquired by hearing with the owner or the like. Then, in step S8, the second design information is determined based on the acquired information. The details of the second design information are as described above.

In step S8, it is desirable to calculate the area of the roof surface required for mounting the photovoltaic power generation device based on the primary information regarding the specifications of the photovoltaic power generation device. Then, by determining the floor plan based on the calculated roof surface area, it is possible to reliably mount the photovoltaic power generation device that satisfies the energy saving request information on the roof surface, so that the second house that satisfies the energy saving request information can be reliably mounted. Design information can be determined reliably. The determined second design information is stored in the second design information storage unit 13.

The step S8 of the present embodiment may be carried out, for example, several days after the processing of the step S7 is completed, or the step S8 may be carried out over several days.

Next, in the design method of the present embodiment, a house satisfying the energy saving request information is designed based on the first design information and the determined second design information (process S9). In step S9, first, the first design information stored in the first design information storage unit 12, the second design information stored in the second design information storage unit 13, and the housing design unit 29 of the program unit 10 Is read into the working memory 8. Then, the housing design unit 29 is executed by the calculation unit 6. Examples of the housing design department 29 include computer-aided design (CAD) and the like.

In step S9, the operator designs the house based on the first design information and the second design information. Thereby, the design method of the present embodiment can efficiently design a house that satisfies the energy saving request of the owner. The design data of the house is stored in the design data storage unit 17. Then, a house is constructed based on the design data of this house.

The step S9 of the present embodiment may be carried out, for example, several days after the processing of the step S8 is completed, or the step S9 may be carried out over several days.

FIG. 10 is a flowchart showing an example of a processing procedure of a housing design method according to another embodiment of the present invention. In this embodiment, the same configurations as those in the previous embodiments may be designated by the same reference numerals and description thereof may be omitted.

In the design method of this embodiment, after the step S8 for determining the second design information is performed, the energy consumption performance is recalculated based on the first design information and the determined second design information (). Step S10). In step S10, first, as shown in FIG. 1, the first design information stored in the first design information storage unit 12, the second design information stored in the second design information storage unit 13, and the second design information are stored in the second design information storage unit 13. The consumption performance calculation unit 26 of the program unit 10 is read into the work memory 8. Then, the consumption performance calculation unit 26 is executed by the calculation unit 6.

In step S10, the first design information and the determined second design information are input to, for example, the program of Non-Patent Document 1 or the energy consumption performance calculation program (household version) API. As a result, in step S10, the energy consumption performance (primary energy consumption (GJ / year)) can be recalculated at the late stage of design (for example, after planning) in which the design of the house has advanced to some extent. The recalculated energy consumption performance is stored in the energy consumption performance storage unit 14.

Next, in the design method of this embodiment, the secondary information regarding the specifications of the photovoltaic power generation device satisfying the energy saving request information is calculated based on the recalculated energy consumption performance (step S11). In step S11 of this embodiment, secondary information can be calculated at a late stage of design (for example, after planning) in which the design of the house has advanced to some extent.

In step S11, first, as shown in FIG. 1, the recalculated energy consumption performance stored in the energy consumption performance storage unit 14 and the secondary information calculation unit 28 of the program unit 10 are used for work. It is read into the memory 8. Then, the second information calculation unit 28 is executed by the calculation unit 6.

The secondary information, like the primary information, relates to the specifications of the photovoltaic power generation device that satisfies the energy saving request information. In step S11 of this embodiment, the number of outputs of the ZEH, the Nearly ZEH, and the photovoltaic power generation device required for the LCCM house is calculated. The calculation method of the secondary information is the same as the calculation method of the primary information. Then, in step S11, the secondary information is displayed on the output unit 3 (display device) of the design device 5. As described above, in step S11, after the second design information is determined, the specifications and costs of the photovoltaic power generation device can be reconfirmed. The secondary information is stored in the secondary information storage unit 16 shown in FIG.

Next, in the method of this embodiment, it is determined whether or not the secondary information is within the allowable range (step S12). In step S12 of this embodiment, it is determined whether or not the value obtained by subtracting the primary information from the secondary information is within the allowable range. In step S12, first, as shown in FIG. 1, the primary information stored in the primary information storage unit 15, the secondary information stored in the secondary information storage unit 16, and the secondary information are stored in the secondary information storage unit 16. The permissible range determination unit 30 of the program unit 10 is read into the work memory 8. Then, the permissible range determination unit 30 is executed by the calculation unit 6.

In step S12, first, a value obtained by subtracting the primary information from the secondary information is obtained. The larger this value, the more the secondary information calculated in the late design stage (for example, after planning) when the design of the house has progressed to some extent, and the primary information calculated in the early stage of design of the house (for example, before planning). It shows that there is a large deviation from the information. The permissible range of such values can be set as appropriate. The permissible range of this embodiment is set to ± 1 kW.

When it is determined in step S12 that the value obtained by subtracting the primary information from the secondary information is within the permissible range (“Y” in step S12), the house is designed in the same manner as in the previous embodiment. Process S9 is carried out, and a house is constructed based on the design data of this house. On the other hand, when it is determined that the value obtained by subtracting the primary information from the secondary information is out of the allowable range (“N” in the process S12), the process S8, the process S10, the process S11 and the process S12 are performed again. It will be implemented and the housing will be redesigned. Thereby, in the design method of this embodiment, it is possible to prevent the design of the house in which the specifications and costs of the photovoltaic power generation device exceed the range assumed by the owner.

In the previous embodiments, the primary information regarding the energy consumption performance and the specifications of the photovoltaic power generation device has been calculated based on the first design information and the estimated second design information. Not limited to. For example, the energy consumption performance and the primary information may be calculated based only on the first design information.

In the design method of this embodiment, the primary information regarding the specifications of the photovoltaic power generation device is calculated by using the relational expression with the "floor area of the house" of the first design information as a variable. In this embodiment, the relational expression is specified in all combinations of the first design information "information for specifying the planned construction site of the house" and "information regarding the presence or absence of all-electricity of the house".

In this embodiment, the first design information "information for specifying the planned construction site of the house" used in the above combination is 1 to 8 (8 types) of the "regional division" of the program of the above non-patent document 1. be. On the other hand, the first design information "information on the presence or absence of all-electric homes" is all-electric and gas hot water supply (two types). As a result, since there are 16 types of all combinations of the first design information "information for specifying the planned construction site of the house" and "information regarding the presence or absence of all-electric housing", 16 relational expressions are specified. To. Further, in this embodiment, 16 relational expressions are specified for each of ZEH, Nearly ZEH, and LCCM housing (all three types). Therefore, in this embodiment, 48 relational expressions are specified.

In order to specify the above relational expression, first, the second design information is estimated in each combination (as an example of the combination, regional division: 3, all-electric, and ZEH). The second design information estimation method is as described above. Next, for each floor area of a plurality of types of houses (for example, 100 m ² , 120 m ² , 140 m ² , 160 m ² and 180 m ² ), the first design information and the estimated second design information are, for example, the above. It is input to the program of Non-Patent Document 1 and the energy consumption performance calculation program (household version) API. As a result, the energy consumption performance (primary energy consumption (GJ / year)) is calculated for each floor area of a plurality of types of houses in each combination.

Next, based on the calculated energy consumption performance, the primary information (number of outputs (W) of the photovoltaic power generation device) regarding the specifications of the photovoltaic power generation device is calculated for each floor area of a plurality of types of houses. .. FIG. 11 is a graph showing the relationship between the floor area of the house and the primary information for the area classification: 3, all-electric, and ZEH houses.

As shown in FIG. 11, the floor area of the house and the regression line of the primary information (the number of outputs (W) of the photovoltaic power generation device) are obtained. This regression line is specified as a relational expression (in this example, a linear function) of the first-order information with the floor area of the house as a variable.

In the design method of this embodiment, among these relational expressions, the acquired first design information (“information for specifying the planned construction site of the house” and “information regarding the presence or absence of all-electricity of the house”) and , One relational expression that meets the conditions of energy-saving housing (ZEH, Nearly ZEH, and LCCM housing) is specified, and the "floor area of the house" of the first design information is substituted into the specified relational expression. Thereby, in the design method of this embodiment, the primary information regarding the specifications of the photovoltaic power generation device can be calculated before the second design information is determined.

As described above, in the design method of this embodiment, since the above relational expression is specified in advance, the program of Non-Patent Document 1 and the energy consumption performance calculation program (household version) API are not used. The primary information regarding the specifications of the photovoltaic power generation device can be easily obtained based only on the first design information. Therefore, in the design method of this embodiment, it is not necessary to determine the second design information. Therefore, in an environment where the program of Non-Patent Document 1 and the energy consumption performance calculation program (residential version) API cannot be accessed, the owner saves energy. It is possible to efficiently design a house that meets the demand.

Although the particularly preferred embodiment of the present invention has been described in detail above, the present invention is not limited to the illustrated embodiment and can be modified into various embodiments.

A house with a photovoltaic device on the roof was designed (Example). In the embodiment, a house having a photovoltaic power generation device on the roof surface was designed based on the processing procedures shown in FIGS. 2, 4 and 8. Then, in the embodiment, the step of calculating the energy consumption performance based on the first design information and the estimated second design information before the second design information is determined with the owner is calculated. Based on the energy consumption performance, the process of calculating the primary information (ZEH) regarding the specifications of the photovoltaic power generation device that satisfies the energy saving request information was carried out.

Further, in the embodiment, for the house for which the primary information is calculated, after the second design information is determined with the owner, the energy consumption performance is determined based on the first design information and the determined second design information. A recalculation step and a step of calculating the secondary information (ZEH) regarding the specifications of the photovoltaic power generation device satisfying the energy saving request information based on the recalculated energy consumption performance were carried out. Then, the correlation between the primary information and the secondary information was obtained. The common specifications are as follows.
Designed house: 51 buildings Energy saving request information: 2nd energy saving standard (2018 energy saving standard (ZEH standard))
First design information:
Information to identify the planned construction site of a house:
Area classification range: 4-7
Range of annual solar radiation area classification: A2-A4
Residential floor area:
Range of total floor area: 100-180m ²
Information on the presence or absence of all-electric homes:
Select all-electric only:
Hot water supply equipment: There is a hot water supply facility (there is a bathroom, etc.)
Classification of heat source machine: Hot water supply only type
Hot water supply heat source machine: Electric heat pump water heater
Efficiency (energy consumption efficiency): 3.6%
Types of bath functions: Bath water heater (with reheating)
Second design information (other than the floor area and the outer skin area, the values are set to the common values in the area categories 4 to 7):
Living room floor area F1: Estimated based on the above formula (1) Floor area F2 of living rooms other than the living room: Estimated based on the above formula (2) Non-living room floor area F3: Estimated based on the above formula (3) Estimated outer skin area F4: Estimated based on the above formula (4) Residential outer skin average heat transmission coefficient ( _UA ): 0.6 W / m ² · K
Average solar heat acquisition rate during the cooling period (Average solar heat acquisition rate during the cooling period (η _AC )): 1.5
Average solar heat acquisition rate during the heating period (Average solar heat acquisition rate during the heating period (η _AH )): 1.5
Use of ventilation in the main room: Not used Use of ventilation in other rooms: Not used Use of heat storage: Not used Use of ventilation method that introduces outside air via the underfloor space: Use throughout the year Heating method selection: Only in the room Selection of heating equipment, etc. for the main room to be heated and other rooms: Room conditioner Selection of evaluation method: Category (i)
Selection of cooling method: Cooling only the living room Selection of cooling equipment for the main living room and other living rooms: Room conditioner Selection of evaluation method: Category (i)
Selection of ventilation equipment method: Duct type first-class ventilation equipment Evaluation method when installing duct type ventilation equipment (specific power consumption): 0.4 W / (m ³ / h)
Ventilation frequency: 0.5 times / h
Installation of heat exchange type ventilation equipment: Not installed Piping method: Header method (larger than 13A)
Faucet: 2-valve faucet Heat insulation measures for bathtub: Use highly insulated bathtub Akiaki Main room:
With or without installation: Install
Lighting equipment type: All LEDs
Adoption of multi-lamp distributed lighting method: Not adopted
Dimmable control: Not adopted Akiaki of other living rooms:
With or without installation: Install
Lighting equipment type: All LEDs
Dimmable control: Not adopted Akiaki non-living room:
With or without installation: Install
Lighting equipment type: All LEDs
Dimmable control: Not adopted Liquid heat collecting type solar heat utilization equipment: Not installed Air heat collecting type solar heat utilization equipment: Not installed Cogeneration equipment: Not installed

FIG. 12 is a graph showing the relationship between the primary information in the stage before the second design information is determined and the secondary information after the second design information is determined. As shown in FIG. 12, there was a positive correlation between the primary information and the secondary information. Therefore, the design method of the embodiment has high accuracy in the energy consumption performance of the house and the specifications (primary information) of the photovoltaic power generation device corresponding to the energy consumption performance of the house in the initial stage of designing the house (for example, before planning). I was able to calculate with. As a result, the design method of the embodiment can prevent the specifications and costs of the photovoltaic power generation device from exceeding the range expected by the owner in the late stage of design (for example, after planning) when the design of the house has advanced to some extent. did it. Therefore, it was confirmed that the design method of the embodiment can prevent the situation where the house needs to be redesigned and can efficiently design the house that meets the energy saving request of the owner.

S1 Step to acquire energy saving request information S3 Step to acquire first design information S5 Step to estimate second design information S6 Step to calculate energy consumption performance S7 Step to calculate primary information

Claims (10)

It is a method of designing a house that has a solar power generation device on the roof surface.
A process of storing energy-saving request information, which is information on the degree of energy-saving of the house desired by the owner, in a computer, and
A process of storing the first design information, which is a part of a plurality of housing design information necessary for calculating the energy consumption performance of the house, in the computer .
A step in which the computer estimates the second design information, which is the remaining information of the plurality of housing design information, using the first design information.
A step in which the computer calculates the energy consumption performance based on the first design information and the estimated second design information before the second design information is determined with the owner. When,
A step in which the computer calculates primary information regarding the specifications of the photovoltaic power generation device that satisfies the energy saving request information based on the calculated energy consumption performance before the second design information is determined. When,
The process of inputting the second design information determined with the owner into the computer, and
A step in which the computer recalculates the energy consumption performance based on the first design information and the determined second design information.
The computer comprises a step of calculating secondary information regarding the specifications of the photovoltaic power generation device that satisfies the energy saving request information based on the recalculated energy consumption performance .
How to design a house. The method for designing a house according to claim 1 , wherein the energy saving request information includes a first energy saving standard and a second energy saving standard which is a stricter energy saving standard than the first energy saving standard . The housing design according to claim 1 or 2, wherein the first design information includes information for specifying a planned construction site of the house, floor area of the house, and information regarding the presence or absence of all-electricity of the house. Method. The method for designing a house according to any one of claims 1 to 3 , wherein the second design information is information on the house determined after the floor plan of the house is determined . The method for designing a house according to claim 4, wherein the step of estimating the second design information includes a step of estimating the second design information using the first design information and a predetermined relational expression. .. The method for designing a house according to any one of claims 1 to 5, wherein the second design information includes a floor area of a living room of the house, a floor area of a living room other than the living room, and a floor area of a non-living room . The housing design according to any one of claims 1 to 6, wherein the second design information includes the average thermal transmission rate of the outer skin of the house, the average thermal heat acquisition rate in the cooling period, and the average solar heat acquisition rate in the heating period. Method. The method for designing a house according to any one of claims 1 to 7 , wherein the specification of the photovoltaic power generation device is a required number of outputs that satisfy the energy saving request information . It is a design device for a house that has a solar power generation device on the roof surface.
The Energy Conservation Request Acquisition Department, in which energy conservation request information, which is information on the degree of energy conservation of the house desired by the owner, is input,
The first design information acquisition unit that acquires the first design information that is a part of the plurality of housing design information necessary for calculating the energy consumption performance of the house, and
A second design information estimation unit that estimates the second design information, which is the remaining information of the plurality of housing design information, using the first design information.
A consumption performance calculation unit that calculates the energy consumption performance based on the first design information and the estimated second design information before the second design information is determined with the owner. ,
Prior to the determination of the second design information, the first information calculation for calculating the primary information regarding the specifications of the photovoltaic power generation device satisfying the energy saving request information based on the calculated energy consumption performance. Department and
A second design information storage unit that stores the second design information determined with the owner, and
The consumption performance calculation unit that recalculates the energy consumption performance based on the first design information and the determined second design information.
A secondary information calculation unit that calculates secondary information regarding the specifications of the photovoltaic power generation device that satisfies the energy saving request information based on the recalculated energy consumption performance.
Housing design equipment. A program that allows a computer to execute a method for designing a house with a solar power generation device on the roof surface.
To the computer
The process of acquiring energy saving request information, which is information on the degree of energy saving of the house desired by the owner, and
The process of acquiring the first design information, which is a part of the plurality of housing design information necessary for calculating the energy consumption performance of the house, and
A process of estimating the second design information, which is the remaining information of the plurality of housing design information, using the first design information, and
A step of calculating the energy consumption performance based on the first design information and the estimated second design information before the second design information is determined with the owner.
Prior to the determination of the second design information, a step of calculating the primary information regarding the specifications of the photovoltaic power generation device satisfying the energy saving request information based on the calculated energy consumption performance.
The process of acquiring the second design information determined with the owner, and
A step of recalculating the energy consumption performance based on the first design information and the determined second design information.
Based on the recalculated energy consumption performance, a step of calculating a secondary information regarding the specification of the photovoltaic power generation device satisfying the energy saving request information is executed.
Program .

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