JP7696124B2 - Information processing method, program, and information processing system - Google Patents

Description

The present disclosure relates generally to information processing methods, programs, and information processing systems, and more specifically to information processing methods, programs, and information processing systems that use information related to the thermal load of a facility.

The automatic air conditioning design device described in Patent Document 1 comprises a processing control unit, a plurality of item storage units, such as an air conditioning equipment item storage unit, and a display output unit. When designing air conditioning for a building, the processing control unit sequentially executes the building design processes, reads out information stored in each item storage unit during the execution process, and displays this general value as an image on the display output unit. The operator can sequentially set the required data according to the display contents of the image display unit. For example, the building structure and room allocation are set. Based on each of the above settings, the heat load calculation unit of the processing control unit calculates the heat load required for the air conditioning design.

Japanese Patent Application Publication No. 8-94150

The present disclosure aims to provide an information processing method, program, and information processing system that enable the smooth progression of air conditioning design for a facility.

An information processing method according to one aspect of the present disclosure includes the steps of: calculating exterior wall heat loss, which is the heat loss of the entire facility in the exterior wall, by multiplying the difference between a set temperature and the outside air temperature inside a facility, which is a building or a mobile body, by the area of the exterior wall of the facility, and the thermal transmittance of the exterior wall; calculating an individual heat load, which is the heat load in each of the multiple compartments, by performing a process of multiplying the ratio of the size of a compartment of interest among the multiple compartments of the facility to the size of the facility by the exterior wall heat loss, for each of the multiple compartments; calculating a ventilation heat load, which is the amount of heat entering and leaving the ventilation equipment per unit time, by multiplying the difference between the set temperature and the outside air temperature, the flow rate of a ventilation equipment installed in the facility, and a predetermined coefficient; and calculating a new individual heat load by adding the ventilation heat load to the individual heat load of the compartment of the multiple compartments in which the ventilation equipment is installed .
An information processing method according to another aspect of the present disclosure includes the steps of: calculating exterior wall heat loss, which is the heat loss of the entire facility in the exterior wall, by multiplying the difference between the set temperature and the outside air temperature inside a facility, which is a building or a mobile body, by the area of the exterior wall of the facility and the thermal transmittance of the exterior wall; calculating an individual heat load, which is the heat load in each of the multiple compartments, by performing a process of multiplying the ratio of the size of a compartment of interest among the multiple compartments of the facility to the size of the facility by the exterior wall heat loss for each of the multiple compartments; and calculating a new individual heat load for each compartment for which the individual heat load is calculated by adding the individual heat load of the corresponding compartment to the heat loss due to heat transfer between the compartment and a space in which no air conditioning equipment is installed.
An information processing method according to yet another aspect of the present disclosure includes the steps of: calculating exterior wall heat loss, which is the heat loss of the entire facility in the exterior wall, by multiplying the difference between the set temperature and the outside air temperature inside a facility, which is a building or a mobile body, by the area of the exterior wall of the facility and the thermal transmittance of the exterior wall; calculating an individual thermal load, which is the thermal load in each of the multiple compartments, by performing a process of multiplying the ratio of the size of a compartment of interest among the multiple compartments of the facility to the size of the facility by the exterior wall heat loss for each of the multiple compartments; and calculating a new individual thermal load by adding at least one of the amount of heat generated per unit time by a human body present in a compartment of interest among the multiple compartments, the amount of heat generated per unit time by equipment installed in the compartment of interest, and the amount of heat per unit time corresponding to the amount of solar radiation from a window installed in the compartment of interest to the individual thermal load.

A program according to one aspect of the present disclosure is a program for causing one or more processors of a computer system to execute any one of the above information processing methods.

An information processing system according to an aspect of the present disclosure includes a first calculation unit, a second calculation unit, and a third calculation unit . The first calculation unit calculates an exterior wall heat loss, which is a heat loss of the entire facility in the exterior wall, by multiplying a difference between a set temperature and an outside temperature in a facility that is a building or a moving object, by an area of an exterior wall of the facility, and a heat transmission coefficient of the exterior wall. The second calculation unit calculates an individual heat load, which is a heat load in each of the multiple sections, by executing a process of multiplying a ratio of a size of a section of interest among multiple sections of the facility to a size of the facility, by the exterior wall heat loss, for each of the multiple sections. The third calculation unit calculates a ventilation heat load, which is the amount of heat entering and leaving the ventilation device per unit time, by multiplying a difference between the set temperature and the outside temperature, by a flow rate in a ventilation device installed in the facility, and a predetermined coefficient. The second calculation unit calculates a new individual thermal load by adding up the ventilation thermal load to the individual thermal load of a section in which the ventilation device is installed, among the multiple sections.
An information processing system according to another aspect of the present disclosure includes a first calculation unit and a second calculation unit. The first calculation unit calculates an exterior wall heat loss, which is a heat loss of the entire facility in the exterior wall, by multiplying a difference between a set temperature and an outside temperature in a facility that is a building or a moving body, by an area of an exterior wall of the facility, and a heat transmission coefficient of the exterior wall. The second calculation unit calculates an individual heat load, which is a heat load in each of the multiple compartments, by executing a process of multiplying a ratio of a size of a compartment of interest among multiple compartments of the facility to a size of the facility, by the exterior wall heat loss, for each of the multiple compartments. The second calculation unit calculates a new individual heat load for each compartment for which the individual heat load is calculated, by adding the individual heat load of the corresponding compartment to a heat loss due to heat transfer between the compartment and a space in which no air conditioning equipment is installed.
An information processing system according to yet another aspect of the present disclosure includes a first calculation unit and a second calculation unit. The first calculation unit calculates an exterior wall heat loss, which is a heat loss of the entire facility in the exterior wall, by multiplying a difference between a set temperature and an outside temperature in a facility that is a building or a moving object, by an area of an exterior wall of the facility, and a heat transmission coefficient of the exterior wall. The second calculation unit calculates an individual heat load, which is a heat load in each of the multiple sections, by executing a process of multiplying a ratio of a size of a section of interest among multiple sections of the facility to a size of the facility by the exterior wall heat loss for each of the multiple sections. The second calculation unit calculates a new individual heat load by adding at least one of a heat amount per unit time of a human body present in the section of interest among the multiple sections, a heat amount per unit time of a device installed in the section of interest, and a heat amount per unit time corresponding to an amount of solar radiation from a window installed in the section of interest to the individual heat load.

FIG. 1 is a sequence diagram illustrating an information processing method according to an embodiment. FIG. 2 is a floor plan of a facility to which the above information processing method is applied. FIG. 3 is a block diagram of a system for implementing the above information processing method.

Below, the information processing method, program, and information processing system according to the embodiments will be described with reference to the drawings. However, the embodiment described below is merely one of the various embodiments of the present disclosure. The embodiment described below can be modified in various ways depending on the design, etc., as long as the object of the present disclosure can be achieved.

(1) Overview The information processing method of this embodiment is used to design air conditioning for a facility 5 (see FIG. 2 ). More specifically, the information processing method is used to select air conditioning equipment to be installed in the facility 5 and to determine the layout of the air conditioning equipment. Air conditioning equipment is equipment that adjusts the temperature in a room by heat exchange. Examples of air conditioning equipment include air conditioners and heat pipes.

As shown in FIG. 1, the information processing method of this embodiment includes a step of calculating exterior wall heat loss, which is the heat loss of the entire facility 5 at the exterior wall E1, by multiplying the difference between the set temperature and the outside air temperature inside the facility 5, which is a building or a mobile object, by the area of the exterior wall E1 of the facility 5 and the overall heat transfer coefficient of the exterior wall E1; and a step of calculating individual heat load, which is the heat load in each of the multiple compartments 50, by performing a process of multiplying the ratio of the size of a compartment 50 of interest among the multiple compartments 50 of the facility 5 (see FIG. 2) to the size of the facility 5 by the exterior wall heat loss for each of the multiple compartments 50.

The information processing method of this embodiment makes it possible to calculate individual heat loads. The individual heat load corresponds to the magnitude of air conditioning capacity required for a section 50 of the facility 5 (individual air conditioning heat load). Therefore, by calculating the individual heat load, the designer can grasp the individual air conditioning heat load, and the air conditioning design of the facility 5 can proceed smoothly. For example, the designer can select air conditioning equipment so that the sum of the air conditioning capacities of one or more air conditioning equipment to be installed in a certain section 50 is the same as or greater than the individual air conditioning heat load of the section 50.

In one embodiment, the program is a program for causing one or more processors of a computer system to execute the above-mentioned information processing method. The program may be recorded on a non-transitory recording medium readable by the computer.

Examples of buildings as facility 5 include houses, office buildings, factories, commercial complexes, libraries, art galleries, museums, amusement facilities, theme parks, parks, airports, train stations, baseball stadiums, hotels, hospitals, etc. Examples of moving objects as facility 5 include ships, railroad cars, aircraft, etc.

One room in the facility 5 may correspond to one section 50, or one room may include two or more sections 50. Alternatively, at least a portion of the space of each of two or more rooms may be included in one section 50. In this embodiment, a description will be given assuming that one room corresponds to one section 50.

In FIG. 2, the facility 5 includes three sections 50 (three rooms). Adjacent sections 50 are separated by an inner wall I1. The space inside the facility 5 (indoor space) is separated from the outdoor space outside the facility 5 by an outer wall E1 (indicated by a thick line in FIG. 2). The outer wall E1 includes a side wall that runs vertically and a ceiling. Each of the three sections 50 is adjacent to the outdoor space, and the three sections 50 and the outdoor space are separated from each other by a portion of the outer wall E1.

(2) Information Processing System The information processing method is realized by an information processing system 1 (see FIG. 3). The information processing system 1 of the present embodiment includes a first calculation unit 21 and a second calculation unit 22. The first calculation unit 21 multiplies the difference between the set temperature and the outside air temperature in the room of a facility 5, which is a building or a moving object, by the area of the exterior wall E1 of the facility 5, and the heat transmission coefficient of the exterior wall E1, to calculate an exterior wall heat loss, which is the heat loss of the entire facility 5 in the exterior wall E1. The second calculation unit 22 calculates an individual heat load, which is the heat load in each of the multiple sections 50, by executing a process of multiplying the ratio of the size of a section 50 of interest among the multiple sections 50 of the facility 5 to the size of the facility 5 by the exterior wall heat loss, for each of the multiple sections 50.

More specifically, the information processing system 1 includes a processing unit 2, a communication unit 31, a memory unit 32, an operation unit 33, and a display unit 34. The processing unit 2 has a first calculation unit 21, a second calculation unit 22, a third calculation unit 23, a selection processing unit 24, an analysis unit 25, and a BIM data creation unit 26.

The processing unit 2 includes a computer system having one or more processors and a memory. The functions of the processing unit 2 are realized by the processor of the computer system executing a program recorded in the memory of the computer system. The program may be recorded in the memory, or may be provided via a telecommunications line such as the Internet, or may be recorded on a non-transitory recording medium such as a memory card and provided.

The first calculation unit 21, the second calculation unit 22, the third calculation unit 23, the selection processing unit 24, the analysis unit 25 and the BIM data creation unit 26 merely indicate functions realized by the processing unit 2 and do not necessarily indicate actual configurations.

The information processing system 1 is used, for example, together with a data server. The data server has a storage unit that holds the library 4. The information processing system 1 can receive data contained in the library 4 and provide data to the library 4 by communicating with the data server. The library 4 may be provided in the information processing system 1.

The communication unit 31 of the information processing system 1 includes a communication interface device for communicating with the data server. The communication unit 31 is capable of communicating with the data server via the communication interface device. In this disclosure, "capable of communication" means that signals can be transmitted and received directly or indirectly via a network or a repeater, etc., using an appropriate communication method such as wired communication or wireless communication.

The memory unit 32 stores information regarding the processing performed in the information processing system 1.

The operation unit 33 is an input interface that accepts user operations. The operation unit 33 includes, for example, a pointing device such as a keyboard and a mouse. By operating the operation unit 33, the user can input environmental information (described later) for calculating the individual heat load and select air conditioning equipment to be installed in the facility 5.

The display unit 34 is a display that displays information regarding the processing performed in the information processing system 1.

As described above, the first calculation unit 21 of the processing unit 2 calculates the exterior wall heat loss. The second calculation unit 22 calculates the individual heat load.

The third calculation unit 23 calculates the ventilation heat load. The ventilation heat load is the amount of heat entering or leaving the ventilation equipment per unit time.

The selection processing unit 24 performs processing to determine the air conditioning equipment to be installed in the facility 5 in response to operations on the operation unit 33.

The analysis unit 25 simulates the environment of facility 5 when air conditioning equipment is installed in facility 5.

The BIM data creation unit 26 performs a process of adding BIM data for the air conditioning equipment to be installed in facility 5 to the BIM (Building Information Modeling) data prepared in advance for facility 5.

(3) Details of the information processing method Details of the information processing method will be described below with reference to Fig. 1. Note that the sequence shown in Fig. 1 is merely an example of the information processing method according to the present disclosure, and the order of processing may be changed as appropriate, and processing may be added or omitted as appropriate.

(3.1) Input of Environmental Information First, environmental information is input to the information processing system 1 (step ST1). The environmental information is information related to the air conditioning environment of the facility 5. The environmental information includes information such as the area of the exterior wall E1 of the facility 5, the heat transfer coefficient of the exterior wall E1, and the size of each of the multiple sections 50 of the facility 5. A part of the environmental information is provided to the information processing system 1 as BIM data.

More specifically, library 4 includes BIM data 41 (see FIG. 3) of facility 5, and this BIM data 41 is provided to information processing system 1. BIM data 41 includes three-dimensional model data of facility 5 and data on the material of each component that constitutes facility 5. Information processing system 1 can, for example, calculate the thermal conductivity of exterior wall E1 based on data on the material of exterior wall E1. Alternatively, information on the thermal conductivity of exterior wall E1 may be provided from library 4.

The environmental information further includes information on the set temperature inside the facility 5 and information on the outside air temperature. For example, the information processing system 1 sets the set temperature to a temperature specified by the user operating the operation unit 33. Regarding the outside air temperature, for example, the user operates the operation unit 33 to select the area in which the facility 5 is located, whereby the average temperature of the area during a specific period (e.g., summer or winter) is read from the memory unit 32, and the information processing system 1 sets the read temperature as the outside air temperature.

The environmental information further includes information regarding the ventilation equipment installed in facility 5. The information regarding the ventilation equipment includes, for example, information regarding the installation location of the ventilation equipment, the flow rate of the ventilation equipment, and the heat exchange rate of the ventilation equipment.

In addition, heat loss in facility 5 includes heat loss due to the passage of heat through exterior wall E1 and heat loss due to the passage of heat through ventilation equipment. The environmental information further includes information regarding various types of heat loss. Specifically, the environmental information includes information regarding the amount of heat generated by the human body present in section 50, the amount of heat generated by equipment installed in section 50, and the amount of heat corresponding to the amount of solar radiation from windows installed in section 50.

(3.2) Calculation of exterior wall heat loss After the environmental information is input to the information processing system 1, the first calculation unit 21 calculates the exterior wall heat loss (step ST2). When the exterior wall heat loss is Qi (unit: [W]), the outside air temperature is Te (unit: [°C]), the set temperature inside the facility 5 is Tr (unit: [°C]), the area of the exterior wall E1 is Ae (unit: [ ^m2 ]), and the overall heat transmission coefficient of the exterior wall E1 is K (unit: [W/( ^m2 ·K)]), the exterior wall heat loss Qi can be calculated by [Equation 1].
[Equation 1]
Qi=K×Ae×(Te-Tr)
If Ro, Rw and Ri (units: [ ^m2 ·K/W]) are the thermal resistance of the outer surface of the exterior wall E1, the thermal resistance of the exterior wall E1 and the thermal resistance of the inner surface of the exterior wall E1, respectively, the thermal transmittance K can be calculated by the following equation 2.
[Equation 2]
K=1/(Rо+Rw+Ri)
The set temperature Tr may be a temperature common to all sections 50. For example, the average value of the set temperatures of the sections 50 may be the set temperature Tr to be applied to [Equation 1]. The area of the exterior wall E1 may be an area obtained by approximation. For example, the value obtained by multiplying the length of the thick line representing the exterior wall E1 in FIG. 2 by a certain height may be set as the area of the side wall of the exterior wall E1, and the sum of the area of the side wall and the area of the ceiling may be set as the area of the exterior wall E1.

(3.3) Calculation of Individual Heat Loads <<3.3.1>> First Example Next, the second calculator 22 calculates the individual heat loads (step ST3). In the first example, a minimum process for calculating the individual heat loads will be described.

The second calculation unit 22 executes a process of multiplying the ratio of the size of a section 50 of interest among the sections 50 of the facility 5 to the size of the facility 5 by the exterior wall heat loss for each of the sections 50. As a result, the second calculation unit 22 calculates the heat load (individual heat load) in each of the sections 50.

With respect to facility 5 and section 50, "size" may refer to either volume or floor area. Furthermore, when "size" refers to volume, the volume may be approximately determined by multiplying the floor area by a certain height. In this embodiment, "size" refers to floor area.

For example, assume that of the three sections 50 that make up facility 5, the floor area of the first section 50 accounts for 20% of the total floor area of the three sections 50. In this case, the individual heat load corresponding to the first section 50 is 0.2 times the exterior wall heat loss. Corresponding individual heat loads for the second section 50 and the third section 50 are calculated in a similar manner.

Hereinafter, the value obtained by multiplying the exterior wall heat loss by the ratio of the size of the compartment 50 is referred to as the individual exterior wall heat loss. As described above, the individual heat load is the heat load in each of the multiple compartments 50. In the first example, the individual exterior wall heat loss matches the individual heat load, but in the following second and third examples, they do not match.

<3.3.2> Second Example Hereinafter, an additional process for calculating the individual thermal loads will be described.

The third calculation unit 23 calculates the ventilation heat load for each section 50. The ventilation heat load is the amount of heat entering and leaving the ventilation equipment per unit time. The third calculation unit 23 calculates the ventilation heat load by multiplying the difference between the set temperature of the room and the outside air temperature, the flow rate of the ventilation equipment installed in the facility 5, and a predetermined coefficient. The second calculation unit 22 adds the ventilation heat load calculated by the third calculation unit 23 to the individual heat load of the first example for the section 50 in which the ventilation equipment is installed, among the multiple sections 50. In other words, the sum of the individual exterior wall heat loss and the ventilation heat load is the individual heat load of the second example.

If the ventilation heat load is Qv (unit: W), the flow rate in the ventilation equipment is q (unit: ^m3 /s), the air density is ρ (= 1.18 kg/ ^m3 ), and the constant pressure specific heat of air is c (= 1005 J/(kg·K)), the ventilation heat load Qv can be calculated using Equation 3.
[Equation 3]
Qv=ρ×c×q×(Te-Tr)
The above-mentioned predetermined coefficient is ρ×c. The predetermined coefficient may be changed as appropriate.

<3.3.3> Third Example Hereinafter, further additional processing for calculating the individual heat loads will be described.

The second calculation unit 22 acquires information regarding the value to be added to the individual heat load of the first example. The information is included in the environmental information acquired in step ST1. The information is generated, for example, based on information input by the user operating the operation unit 33.

The value to be added to the individual thermal load of the first example is at least one of the heat generation amount of the human body, the heat generation amount of the equipment, and the heat amount corresponding to the amount of solar radiation. That is, the second calculation unit 22 adds at least one of the heat generation amount per unit time of the human body present in a target section 50 of the multiple sections 50 (first heat generation amount), the heat generation amount per unit time of the equipment installed in the target section 50 (second heat generation amount), and the heat amount per unit time corresponding to the amount of solar radiation from a window installed in the target section 50 (third heat generation amount) to the individual thermal load of the first example, to calculate the individual thermal load of the third example.

For example, the capacity of the first section 50, or the number of visitors set by the user operating the operation unit 33, is four people. The amount of heat generated by each person per unit time is pre-stored in the memory unit 32. The second calculation unit 22 multiplies the amount of heat generated per person by the number of people (four people) to determine the first amount of heat generated by the first section 50.

Furthermore, for example, the amount of heat generated per unit time (second heat generation amount) of the equipment installed in the first section 50 is set by the user operating the operation unit 33, or is information included in the BIM data 41 of the facility 5 provided from the library 4. Examples of equipment include lighting equipment, a personal computer, and a printer.

For example, the user operates the operation unit 33 to select the area in which the facility 5 is located. This identifies the amount of solar radiation in the area. The BIM data 41 for the facility 5 provided by the library 4 includes information on the window area, window orientation, and window light transmittance of the facility 5. Based on this information, the second calculation unit 22 calculates the amount of solar radiation from the windows installed in the first section 50. Furthermore, the second calculation unit 22 calculates the amount of heat per unit time corresponding to the amount of solar radiation (third heat generation amount).

If the amount of solar radiation (amount of incident light) on the window surface is I (unit: [W/ ^m2 ]), the area of the window is Aw (unit: [ ^m2 ]), and the light transmittance of the window is τ, the third heat generation amount Qw can be calculated using Equation 4.
[Equation 4]
Q = I x A x τ
The second calculation unit 22 determines the sum of the first heat generation amount, the second heat generation amount, the third heat generation amount, the ventilation heat load, and the individual exterior wall heat loss of the first section 50 as the individual heat load of the first section 50. Similarly, for the second and third sections 50, the second calculation unit 22 obtains the first heat generation amount, the second heat generation amount, the third heat generation amount, and the ventilation heat load, and adds these to the individual heat load (individual exterior wall heat loss) of the first example.

Note that the value to be added to the individual heat load in the first example does not have to be all of the first heat generation amount, the second heat generation amount, the third heat generation amount, and the ventilation heat load. In other words, for each section 50, the value obtained by adding at least one of the first heat generation amount, the second heat generation amount, the third heat generation amount, and the ventilation heat load to the individual exterior wall heat loss can be set as the individual heat load in the third example.

(3.4) Individual Air-Conditioning Heat Load The information processing method of this embodiment further includes a step of calculating an individual air-conditioning heat load based on the individual heat load. The individual air-conditioning heat load is the magnitude of the air-conditioning capacity required of the air-conditioning equipment in each of the multiple sections 50. In this embodiment, the individual heat load is equal to the individual air-conditioning heat load.

(3.5) Process for determining candidates for air conditioners to be installed After the individual heat load (individual air conditioning heat load) is calculated, the information processing system 1 provides the data server with numerical information representing the individual heat load (step ST4). Various air conditioners that can be installed in the facility 5 are registered in the library 4 of the data server, and the library 4 includes information on each air conditioner. The data server searches for air conditioners that meet the conditions from among those registered in the library 4 (step ST5). The air conditioners that meet the conditions are treated as candidates for air conditioners to be installed in the facility 5. The conditions include, for example, a condition that when the number of air conditioners to be installed in a certain section 50 is N (N is a natural number), the sum of the air conditioning capacities of the N air conditioners is equal to or greater than the individual heat load. In this way, the information processing method of this embodiment further includes a selection step (step ST5) of determining candidates for air conditioners to be installed in each of the multiple sections 50 based on the individual heat load. In the selection step, candidates for air conditioners to be installed in each of the multiple sections 50 are determined from the multiple air conditioners registered in the library 4.

Information about the air conditioning equipment determined as candidates is provided from the library 4 to the information processing system 1. That is, the information processing method of this embodiment further includes step ST6 of acquiring information about the air conditioning equipment from the library 4. The information about the air conditioning equipment includes information about the model number of the air conditioning equipment, its size, at least one of the rated cooling capacity and rated heating capacity, the air volume for each air volume setting value, and the wind direction range.

Information about the size of the air conditioner includes, for example, the overall width, height, and depth dimensions of the air conditioner, as well as the dimensions of the air intake and exhaust ports. The rated cooling capacity and rated heating capacity represent the rated value (in W) of the amount of heat transferred by the air conditioner per unit time. The air volume setting value is, for example, one of three values corresponding to "strong," "medium," and "weak." The air direction range represents the range of change in the air blowing direction of the air conditioner, and is measured in radians. The air direction range may be one range representing the range of change in the air blowing direction around one axis, or two or three ranges representing the range of change in the air blowing direction around each of two or three axes.

The information about the air conditioner also includes, for example, the uniform resource locator (URL) of a website where product information about the air conditioner can be downloaded, the installation method of the air conditioner, and information about special functions of the air conditioner (for example, sterilization function or deodorization function). In addition, the information about the air conditioner includes, for example, the horsepower of the air conditioner, heating COP (coefficient of performance), cooling COP, external static pressure, type of available power source, operating current, rated power consumption, power factor, operating noise (SPL: Sound Pressure Level), and information about the mass of the air conditioner.

(3.6) Selection and Placement After the information processing system 1 acquires information about the air conditioning equipment in step ST6, the selection processing unit 24 (see Figure 3) performs a process of selecting the air conditioning equipment and a process of placing the air conditioning equipment on the BIM data of the facility 5 in accordance with the user's operation (step ST7).

More specifically, first, images representing a plurality of sections 50 are displayed on the display unit 34. The user operates the operation unit 33 to select the section 50 for which air conditioning design is to be performed. Then, information on one or more air conditioning devices that are candidates for the air conditioning device to be installed in the section 50 is displayed on the display unit 34. The information on the air conditioning device is, for example, information on the product number and size of the air conditioning device, at least one of the cooling rated capacity and the heating rated capacity, the air volume for each air volume setting value, the wind direction range, and an image (photo) of the air conditioning device. The user operates the operation unit 33 to select the air conditioning device to be installed in the section 50. Next, the user operates the operation unit 33 to place the air conditioning device at a desired position on the BIM data of the facility 5. As a result, the selection processing unit 24 performs a process of selecting and finalizing the placement of the air conditioning device to be installed in the section 50.

The user selects and places the air conditioning equipment to be installed in all sections 50.

(3.7) Environmental Simulation Next, the analysis unit 25 (see FIG. 3) performs an environmental simulation based on the arrangement of the air conditioning equipment set by the user in step ST7, the air conditioning capacity (cooling rated capacity and heating rated capacity) and wind direction range of the air conditioning equipment, and the BIM data of the facility 5, etc. (step ST8). That is, the information processing method of this embodiment further includes step ST8 of simulating the environment of the facility 5 when the air conditioning equipment is installed in the facility 5, based on information on the air conditioning equipment and structural data (BIM data) of the facility 5.

Specifically, first, the user sets the environmental conditions required for the section 50. The environmental conditions include, for example, the maximum wind speed, average wind speed, wind direction at a specified position, PMV (Predicted Mean Vote), and PPD (Predicted Percentage of Dissatisfied) in the section 50. The environmental conditions also include information on the set temperature of the section 50 from the environmental information acquired in step ST1. The analysis unit 25 performs an environmental simulation for each of the multiple sections 50 under the assumption that various settings of the air conditioning equipment are made to approximate the environmental conditions.

The environmental simulation performed by the analysis unit 25 is a CFD (Computational Fluid Dynamics) simulation. As a result of the environmental simulation, for example, information on the temperature distribution and air volume distribution in the section 50 is generated. The temperature distribution is represented, for example, in a three-dimensional image representing the section 50, by color-coding the space according to the temperature. Furthermore, the air volume distribution is represented, for example, in a three-dimensional image representing the section 50, by color-coding the space according to the air volume. Furthermore, as a result of the environmental simulation, for example, predicted values of PMV and PPD in the section 50 are generated.

The user views the results of the environmental simulation displayed on the display unit 34. If the user is satisfied with the results of the environmental simulation, the user operates the operation unit 33 to approve the selection and placement of the air conditioning equipment in the section 50 (step ST9: Yes). On the other hand, if the user is not satisfied with the results of the environmental simulation (step ST9: No), the user redoes the selection and placement of the air conditioning equipment. In other words, the process returns to step ST7.

(3.8) BIM Data Creation When the user approves the selection and arrangement of the air conditioning equipment in the section 50 and performs an operation on the operation unit 33 to confirm the selection and arrangement, the BIM data creation unit 26 (see FIG. 3) creates BIM data for the facility 5 including the BIM data of the air conditioning equipment. That is, the information processing method of this embodiment further includes step ST10 of adding the BIM data of the air conditioning equipment to the BIM data of the facility 5. The BIM data created in this way includes three-dimensional model data of the structural parts of the facility 5 and three-dimensional model data of the air conditioning equipment installed in the structural parts (e.g., walls). Furthermore, the BIM data includes information about the air conditioning equipment (e.g., information about the air conditioning capacity and wind direction range). The user can obtain information about the air conditioning equipment from the BIM data by operating the operation unit 33.

The information processing system 1 provides the BIM data 41 (see FIG. 3) created in step ST10 and the results of the environmental simulation performed in step ST8 (analysis data 42) to the library 4 (step ST11). The library 4 holds the BIM data 41 and the analysis data 42.

The manager of the facility 5 can manage the facility 5 using the BIM data 41 stored in the library 4. For example, the manager can understand the layout and specifications of air conditioning equipment by referring to the BIM data 41. In addition, the manager can understand the air conditioning environment (temperature distribution, air volume distribution, etc.) of each of the multiple sections 50 by referring to the analysis data 42 stored in the library 4.

(Variation 1)
Hereinafter, a description will be given of an information processing method according to Modification 1. Configurations similar to those in the embodiment will be given the same reference numerals and descriptions thereof will be omitted.

In an embodiment, for example, a user operates the operation unit 33 to select the area in which the facility 5 is located, whereby the average temperature in the area for a particular season (e.g., summer or winter) is read from the memory unit 32, and the information processing system 1 sets the read temperature as the outdoor air temperature Te. Then, the outdoor air temperature Te is used to calculate the exterior wall heat loss Qi according to [Equation 1]. In this variant example 1, the method of determining the outdoor air temperature Te differs depending on whether the air conditioner is performing cooling operation or heating operation. The user operates the operation unit 33 to specify whether the air conditioner is performing cooling operation or heating operation.

In this first modified example, the temperature read out from the memory unit 32 is called the actual outdoor air temperature t ₀ (unit: °C). The solar absorptance on the surface of the exterior wall E1 is a _{0 ,} the amount of solar radiation (amount of incident light) on the surface of the exterior wall E1 is Ie (unit: W/m ² ), and the overall heat transfer coefficient on the surface of the exterior wall E1 is α (unit: W/(m ² ·K)). In addition, the view factor (0.5 for a side wall along the vertical direction and 1 for the ceiling) when viewing the sky from the exterior surface of the exterior wall E1 is F, the radiation constant of a black body is σ (= 5.67 × 10 ^-8 [W/(m ² · ^K )), and the value obtained by converting the actual outdoor air temperature t ₀ into absolute temperature is T ₀ .

The outside air temperature Te when the air conditioner is in cooling operation is calculated by Equation 5.
[Equation 5]
Te=t ₀ +a ₀ ×Ie/α
The outside air temperature Te when the air conditioner is in heating operation is calculated by Equation 6.
[Equation 6]
Te=t ₀ -F×σ×T ₀ ⁴ /α
That is, in this modified example 1, when the air conditioner is in cooling operation, the outdoor air temperature Te is increased by an amount corresponding to the effect of solar radiation, and when the air conditioner is in heating operation, the outdoor air temperature Te is decreased by an amount corresponding to the blackbody radiation of the facility 5. This allows for more precise air conditioning design for the facility 5.

The exterior wall heat loss Qi can be calculated by substituting the outside air temperature Te calculated using [Equation 5] or [Equation 6] into [Equation 1].

(Other Modifications of the Embodiments)
Other modified examples of the embodiment are listed below. The following modified examples may be implemented in appropriate combination. The following modified examples may also be implemented in appropriate combination with the above-mentioned modified example 1.

Spaces in which no air conditioning equipment is installed may be excluded from the calculation of the individual heat load. In this case, for each section 50 for which the individual heat load is calculated, the heat loss due to heat transfer between the section 50 and the space in which no air conditioning equipment is installed may be added to the individual heat load of the section 50.

It is not essential that adjacent sections 50 of the facility 5 are separated by an inner wall I1.

Some of the multiple compartments 50 may not be adjacent to an outdoor space.

In addition to the selection and placement of air conditioning equipment, the selection and placement of ventilation equipment may also be realized by the information processing system 1. For example, the database searches the library 4 for ventilation equipment that meets the conditions, and the ventilation equipment that meets the conditions is set as a candidate for ventilation equipment to be installed in the facility 5. Information on the candidate ventilation equipment is provided to the information processing system 1, and the user can select the ventilation equipment to actually install from the candidate ventilation equipment and decide the placement.

The information processing system 1 may perform a process of presenting recommended air conditioning equipment to the user from among the candidate air conditioning equipment listed in the selection step. The information processing system 1 may also perform a process of presenting recommended placement of the air conditioning equipment to the user. For example, the information processing system 1 may determine the air conditioning equipment and placement thereof that maximizes air conditioning efficiency, and present it to the user.

The information processing system 1 in the present disclosure includes a computer system. The computer system is mainly composed of a processor and a memory as hardware. At least a part of the functions of the information processing system 1 in the present disclosure is realized by the processor executing a program recorded in the memory of the computer system. The program may be pre-recorded in the memory of the computer system, may be provided through an electric communication line, or may be recorded and provided in a non-transitory recording medium such as a memory card, an optical disk, or a hard disk drive that can be read by the computer system. The processor of the computer system is composed of one or more electronic circuits including a semiconductor integrated circuit (IC) or a large-scale integrated circuit (LSI). The integrated circuits such as IC or LSI referred to here are called different names depending on the degree of integration, and include integrated circuits called system LSI, VLSI (Very Large Scale Integration), or ULSI (Ultra Large Scale Integration). Furthermore, a field-programmable gate array (FPGA) that is programmed after the manufacture of the LSI, or a logic device that can reconfigure the connection relationship inside the LSI or reconfigure the circuit partition inside the LSI, can also be adopted as a processor. The electronic circuits may be integrated in one chip or distributed among multiple chips. The chips may be integrated in one device or distributed among multiple devices. The computer system referred to here includes a microcontroller having one or more processors and one or more memories. Thus, the microcontroller is also composed of one or more electronic circuits including a semiconductor integrated circuit or a large-scale integrated circuit.

In addition, it is not essential for information processing system 1 that multiple functions in information processing system 1 are concentrated in one device, and the components of information processing system 1 may be distributed across multiple devices. Furthermore, at least some of the functions of information processing system 1, for example at least some of the functions of analysis unit 25, may be realized by the cloud (cloud computing) or the like.

(summary)
The above-described embodiments and the like disclose the following aspects.

The information processing method according to the first aspect includes a step of calculating exterior wall heat loss, which is the heat loss of the entire facility (5) at the exterior wall (E1), by multiplying the difference between the set temperature and the outside air temperature inside the facility (5), which is a building or a mobile object, by the area of the exterior wall (E1) of the facility (5) and the overall heat transfer coefficient of the exterior wall (E1); and a step of calculating individual heat load, which is the heat load in each of the multiple sections (50), by performing a process of multiplying the ratio of the size of a section (50) of interest among the multiple sections (50) of the facility (5) to the size of the facility (5) by the exterior wall heat loss for each of the multiple sections (50).

According to the above configuration, the individual heat load can be calculated. The individual heat load corresponds to the amount of air conditioning capacity (individual air conditioning heat load) required for the section (50) of the facility (5). Therefore, by calculating the individual heat load, the designer can grasp the individual air conditioning heat load, and the air conditioning design of the facility (5) can be smoothly carried out.

In addition, the information processing method according to the second aspect further includes, in the first aspect, a step of calculating a ventilation heat load, which is the amount of heat entering and leaving the ventilation equipment per unit time, by multiplying the difference between the set temperature and the outside air temperature, the flow rate in the ventilation equipment installed in the facility (5), and a predetermined coefficient, and a step of adding up the ventilation heat load to an individual heat load in the section (50) in which the ventilation equipment is installed among the multiple sections (50) to calculate a new individual heat load.

The above configuration makes it possible to design air conditioning that takes into account the amount of heat entering and leaving the ventilation equipment.

In addition, the information processing method according to the third aspect, in the first or second aspect, further includes a step of adding at least one of the heat amount per unit time of a human body present in a target section (50) among the multiple sections (50), the heat amount per unit time of an apparatus installed in the target section (50), and the heat amount per unit time corresponding to the amount of solar radiation from a window installed in the target section (50) to the individual thermal load to calculate a new individual thermal load.

The above configuration makes it possible to design air conditioning taking into account factors such as the amount of heat generated by the human body.

In addition, the information processing method according to the fourth aspect further includes a step of calculating an individual air-conditioning heat load based on the individual heat load in the first aspect. The individual air-conditioning heat load is the magnitude of the air-conditioning capacity required of the air-conditioning equipment in each of the multiple sections (50).

According to the above configuration, it is possible to calculate the individual air conditioning heat load. In other words, it is possible to calculate the amount of air conditioning capacity required for the section (50) of the facility (5).

In addition, the information processing method according to the fifth aspect, in the first or fourth aspect, further includes a selection step of determining candidates for air conditioning equipment to be installed in each of the multiple sections (50) based on individual thermal loads.

According to the above configuration, candidate air conditioning equipment can be presented to the designer.

In addition, the information processing method according to the sixth aspect further includes a step of calculating an individual air-conditioning heat load based on the new individual heat load in the second or third aspect. The individual air-conditioning heat load is the magnitude of the air-conditioning capacity required of the air-conditioning equipment in each of the multiple sections (50).

According to the above configuration, it is possible to calculate the individual air conditioning heat load. In other words, it is possible to calculate the amount of air conditioning capacity required for the section (50) of the facility (5).

In addition, the information processing method according to the seventh aspect, in any one of the second, third and sixth aspects, further includes a selection step of determining candidates for air conditioning equipment to be installed in each of the multiple sections (50) based on the new individual thermal load.

According to the above configuration, candidate air conditioning equipment can be presented to the designer.

In addition, the information processing method according to the eighth aspect, in the fifth or seventh aspect, further includes a step of simulating the environment of the facility (5) when an air conditioning device is installed in the facility (5) based on information related to the air conditioning device and structural data of the facility (5).

According to the above configuration, the effectiveness of an air-conditioning device when installed in a specific section (50) of a specific facility (5) can be confirmed without actually installing the air-conditioning device.

In addition, in an information processing method relating to a ninth aspect, in any one of the fifth, seventh, and eighth aspects, in the selection step, candidates for air conditioning equipment to be installed in each of a plurality of sections (50) are determined from among a plurality of air conditioning equipment registered in the library (4).

According to the above configuration, by registering data on multiple air conditioning devices in the library (4), it is not necessary to store the data on the air conditioning devices in advance in the devices that actually use the data, thereby reducing the storage capacity required for the devices.

In addition, the information processing method according to the tenth aspect of the present invention, in the ninth aspect, further includes a step of acquiring information regarding the air conditioning equipment from the library (4), including the product number, size, at least one of the rated cooling capacity and the rated heating capacity, the air volume for each air volume setting value, and the wind direction range.

With the above configuration, a wide variety of information regarding air conditioning equipment can be obtained.

In addition, the information processing method of the 11th aspect, in any one of the 5th, 7th to 10th aspects, further includes a step of adding BIM data of the air conditioning equipment to the BIM data of the facility (5).

According to the above configuration, BIM data can be created that represents the state in which air conditioning equipment is installed in the facility (5).

Configurations other than the first aspect are not essential to the information processing method disclosed herein and may be omitted as appropriate.

In addition, the program relating to the 12th aspect is a program for causing one or more processors of a computer system to execute an information processing method relating to any one of the 1st to 11th aspects.

The above configuration makes it possible to smoothly proceed with the air conditioning design of the facility (5).

The information processing system (1) according to the thirteenth aspect includes a first calculation unit (21) and a second calculation unit (22). The first calculation unit (21) multiplies the difference between the indoor set temperature and the outdoor temperature of the facility (5), which is a building or a moving object, by the area of the exterior wall (E1) of the facility (5), and the heat transmission coefficient of the exterior wall (E1), to calculate the exterior wall heat loss, which is the heat loss of the entire facility (5) in the exterior wall (E1). The second calculation unit (22) calculates the individual heat load, which is the heat load in each of the multiple sections (50), by executing a process of multiplying the ratio of the size of a section (50) of interest among the multiple sections (50) of the facility (5) to the size of the facility (5) by the exterior wall heat loss, for each of the multiple sections (50).

The above configuration makes it possible to smoothly proceed with the air conditioning design of the facility (5).

Without being limited to the above aspects, various configurations (including modified examples) of the information processing system (1) according to the embodiment can be embodied in an information processing method, a (computer) program, or a non-transitory recording medium having a program recorded thereon.

Reference Signs List 1 Information processing system 4 Library 5 Facility 21 First calculation unit 22 Second calculation unit 50 Section E1 Outer wall

Claims (14)

A step of calculating an exterior wall heat loss, which is the heat loss of the entire facility at the exterior wall, by multiplying the difference between the indoor set temperature and the outdoor air temperature of the facility, which is a building or a mobile object, by the area of the exterior wall of the facility and the heat transmission coefficient of the exterior wall;
A step of multiplying a ratio of a size of a section of interest among the sections of the facility to a size of the facility by the exterior wall heat loss for each of the sections, thereby calculating an individual heat load, which is a heat load in each of the sections ;
A step of calculating a ventilation heat load, which is the amount of heat entering or leaving the ventilation device per unit time, by multiplying a difference between the set temperature and the outside air temperature, a flow rate in the ventilation device installed in the facility, and a predetermined coefficient;
The ventilation heat load is added to the individual heat load of the section in which the ventilation device is installed among the plurality of sections to calculate a new individual heat load .
Information processing methods. A step of calculating an exterior wall heat loss, which is the heat loss of the entire facility at the exterior wall, by multiplying the difference between the indoor set temperature and the outdoor air temperature of the facility, which is a building or a mobile object, by the area of the exterior wall of the facility and the heat transmission coefficient of the exterior wall;
A step of multiplying a ratio of a size of a section of interest among the sections of the facility to a size of the facility by the exterior wall heat loss for each of the sections, thereby calculating an individual heat load, which is a heat load in each of the sections;
For each section for which the individual heat load is calculated, a step of calculating a new individual heat load by adding the individual heat load of the corresponding section and a heat loss due to heat transfer between the section and a space in which an air conditioner is not installed,
Information processing methods. The method further includes a step of calculating a new individual thermal load by adding at least one of a heat amount per unit time of a human body present in a target section among the plurality of sections, a heat amount per unit time of a device installed in the target section, and a heat amount per unit time corresponding to an amount of solar radiation from a window installed in the target section to the individual thermal load.
3. The information processing method according to claim 1 or 2. A step of calculating an exterior wall heat loss, which is the heat loss of the entire facility at the exterior wall, by multiplying the difference between the indoor set temperature and the outdoor air temperature of the facility, which is a building or a mobile object, by the area of the exterior wall of the facility and the heat transmission coefficient of the exterior wall;
A step of multiplying a ratio of a size of a section of interest among the sections of the facility to a size of the facility by the exterior wall heat loss for each of the sections, thereby calculating an individual heat load, which is a heat load in each of the sections;
and calculating a new individual thermal load by adding at least one of a heat amount per unit time of a human body present in a target section among the plurality of sections, a heat amount per unit time of a device installed in the target section, and a heat amount per unit time corresponding to an amount of solar radiation from a window installed in the target section to the individual thermal load.
Information processing methods. Further comprising a step of calculating an individual air conditioning heat load, which is a magnitude of an air conditioning capacity required for an air conditioner in each of the plurality of sections, based on the new individual heat load.
The information processing method according to any one of claims 1 to 4. A selection step of determining candidates for air-conditioning equipment to be installed in each of the plurality of sections based on the new individual heat loads,
The information processing method according to any one of claims 1 to 5. A step of simulating an environment of the facility when the air conditioning equipment is installed in the facility based on information about the air conditioning equipment and structural data of the facility.
The information processing method according to claim 6. In the selection step, candidates for the air conditioning equipment to be installed in each of the plurality of sections are determined from among a plurality of air conditioning equipment registered in a library.
The information processing method according to claim 6 or 7. The method further includes a step of acquiring information on the air conditioning equipment from the library, the information on the air conditioning equipment including a product number, a size, at least one of a cooling rated capacity and a heating rated capacity, an air volume for each air volume setting value, and a range of air directions.
The information processing method according to claim 8. The method further includes adding Building Information Modeling data of the air conditioning equipment to Building Information Modeling data of the facility.
The information processing method according to any one of claims 6 to 9. The information processing method according to any one of claims 1 to 10, wherein one or more processors of a computer system execute the information processing method.
Program. a first calculation unit that calculates an exterior wall heat loss, which is a heat loss of the entire facility at the exterior wall, by multiplying a difference between a set temperature and an outside air temperature in a facility that is a building or a mobile body, an area of the exterior wall of the facility, and a heat transmission coefficient of the exterior wall;
a second calculation unit that calculates an individual heat load, which is a heat load in each of the plurality of sections, by multiplying a ratio of a size of a section of interest among the plurality of sections of the facility to a size of the facility by the exterior wall heat loss for each of the plurality of sections;
a third calculation unit that calculates a ventilation heat load, which is the amount of heat entering or leaving the ventilation device per unit time, by multiplying a difference between the set temperature and the outside air temperature, a flow rate in the ventilation device installed in the facility, and a predetermined coefficient;
The second calculation unit calculates a new individual thermal load by adding the ventilation thermal load to the individual thermal load in a section in which the ventilation device is installed among the plurality of sections.
Information processing system. a first calculation unit that calculates an exterior wall heat loss, which is a heat loss of the entire facility at the exterior wall, by multiplying a difference between a set temperature and an outside air temperature in a facility that is a building or a mobile body, an area of the exterior wall of the facility, and a heat transmission coefficient of the exterior wall;
a second calculation unit that calculates an individual heat load, which is a heat load in each of the plurality of compartments, by multiplying a ratio of a size of a compartment of interest among the plurality of compartments of the facility to a size of the facility by the exterior wall heat loss for each of the plurality of compartments;
The second calculation unit calculates a new individual thermal load for each section for which the individual thermal load is calculated by adding the individual thermal load of the corresponding section to a heat loss due to heat transfer between the section and a space in which an air conditioner is not installed.
Information processing system. a first calculation unit that calculates an exterior wall heat loss, which is a heat loss of the entire facility at the exterior wall, by multiplying a difference between a set temperature and an outside air temperature in a facility that is a building or a mobile body, an area of the exterior wall of the facility, and a heat transmission coefficient of the exterior wall;
a second calculation unit that calculates an individual heat load, which is a heat load in each of the plurality of compartments, by multiplying a ratio of a size of a compartment of interest among the plurality of compartments of the facility to a size of the facility by the exterior wall heat loss for each of the plurality of compartments;
the second calculation unit calculates a new individual thermal load by adding at least one of a heat amount per unit time of a human body present in a target section among the plurality of sections, a heat amount per unit time of a device installed in the target section, and a heat amount per unit time corresponding to an amount of solar radiation from a window installed in the target section to the individual thermal load;
Information processing system.

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