JP6468753B2 - Calculation method and calculation system of ventilation frequency and required window area - Google Patents

Description

  The present invention relates to a calculation method and a calculation system for the number of ventilations and a required window area.

  2. Description of the Related Art Conventionally, a ventilation / thermal diagnosis system that can quantitatively analyze the influence of wind flowing in from a building opening on the indoor environment has been proposed (see, for example, Patent Document 1).

JP 2007-115041 A

  However, the conventional system that predicts the ventilation / ventilation amount in the building, such as the system described above, has a low accuracy even though the calculation is complicated. Especially in densely populated areas, the surrounding environment (placement of neighboring buildings) is complex and difficult to predict with high accuracy.

  Therefore, an object of the present invention is to provide a calculation method and a calculation system for a ventilation frequency and a required window area, which can calculate the ventilation frequency and a required window area with accuracy that is simpler and has no practical problem. .

  In order to solve the above-mentioned problem, the ventilation frequency calculation method according to the present invention calculates the ventilation frequency V per unit time from the ratio R between the window area W and the floor area F of the room on a predetermined floor of the building. And

  According to this, the number of ventilations can be calculated with accuracy that is simpler and has no practical problem.

  In this method of calculating the ventilation frequency, it is preferable that a correlation equation between the ratio R and the ventilation frequency V is obtained in advance by statistical processing, and the ventilation frequency V is calculated based on the correlation equation.

  In addition, in this ventilation frequency calculation method, it is preferable to consider the influence of the presence or absence of a partition inside the building.

  Further, in this method of calculating the ventilation frequency, it is preferable to consider the influence of the presence or absence of neighboring buildings and / or the number of floors.

The ventilation frequency calculation system according to the present invention includes:
Correlation data storage means for storing correlation data between the ratio R between the window area W and floor area F of a room on a predetermined floor of the building and the ventilation frequency V per unit time;
A ventilation frequency calculating means for calculating a ventilation frequency V per unit time from the ratio R of the window area W and floor area F of the living room based on the correlation data;
It is provided with.

  According to this, based on the correlation data, it is possible to calculate the ventilation frequency with accuracy that is simpler and has no practical problem.

  The required window area calculation method according to the present invention is characterized in that the required window area W1 is calculated from the floor area F of a living room on a predetermined floor of the building and the desired number of ventilations V per unit time.

  According to this, it is possible to calculate the necessary window area with accuracy that is simpler and has no practical problem.

  In this method of calculating the required window area, it is preferable that a correlation formula between the ratio R and the ventilation frequency V is obtained in advance by statistical processing, and the required window area W1 is calculated based on the correlation formula.

  Moreover, in this calculation method of a required window area, it is preferable to consider the influence by the presence or absence of the partition inside the said building.

  Further, in the calculation method of the necessary window area, it is preferable to consider the influence of the presence of a neighboring building and / or the number of floors of the building.

The required window area calculation system according to the present invention is:
Correlation data storage means for storing correlation data between the ratio R between the window area W and floor area F of a room on a predetermined floor of the building and the ventilation frequency V per unit time;
Based on the correlation data, a necessary window area calculating means for calculating a required window area W1 from the floor area F of the living room and the assumed ventilation frequency V per unit time;
It is provided with.

  According to this, based on the correlation data, the required window area can be calculated with more accuracy that is simpler and has no practical problem.

  According to the present invention, the number of ventilations and the necessary window area can be calculated more easily and with accuracy that is not problematic for practical use.

It is a figure which shows an example of a three-story detached house schematically. It is a top view which shows the example of the floor plan which two living rooms continued in the north-south direction via the indoor opening part. Window area showing the results of simulations for the 1st, 2nd and 3rd floor living rooms of a building in the central area (site where one of the north and south sides touches the road and the other 3 sides touch the adjacent land) It is the graph showing the relationship between the ratio R of W and floor area F, and the ventilation frequency. Window area W and floor showing the results of simulations for rooms on the 1st, 2nd, and 3rd floors of a building on a corner (a site where two adjacent sides touch the road and the other two sides touch the next) It is a graph showing the relationship between the ratio R of the area F and the ventilation frequency V. It is a figure which shows the structural example of the calculation system of the ventilation frequency and required window area. It is a figure which shows an example of the input screen (interface) in the display of a calculation system. It is a figure which shows an example of the hierarchy display of a ventilation path | route.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings (see FIGS. 1 to 7).

<About the experiment>
As a result of simulation (simulation experiment), it is found that a certain correlation is established among the area W of the window 4, the floor area F, and the ventilation frequency V in a certain room 3 in a predetermined floor 2 of the building 1. It was done. First, this will be described (see FIG. 1 and the like).

Using the building 1 which is a three-story detached house as a model, the correlation between the “ratio R of the window area W to the floor area F” and “the ventilation frequency V (average value)” was simulated for the living room 3 on each floor 2. . Here, the room having the window 4 is the object of the simulation. The living room 2 is a north-south opening type in which windows are provided on the south side and the north side, respectively (see FIG. 1).
In this simulation, the ventilation frequency is the ventilation frequency for the wind direction from 6 directions.

  In addition, the room 4 is divided into two rooms 3 by a partition having an indoor opening (openable door, indoor window, space, etc.), the north-side room 3 is provided with a window 4 facing the north side, and the south-side room 3 has The floor plan in which the window 4 facing the south side is provided may be a target (see FIG. 2).

  The “ventilation frequency V” is the number of times the air in the room is replaced per hour.

  First, the simulation was performed on the living room 3 on each floor 2 of the building 1 in the central area (site where one of the north and south sides touches the road and the other three sides touch the adjacent land). As a result, it was confirmed that there was a correlation between “ratio R of window area W and floor area F” and “ventilation frequency V” in each room (see FIG. 3). The average value described above was used as the ventilation frequency V.

  Subsequently, a simulation was performed for the living room 3 on each floor 2 of the building on a corner (a site where two adjacent sides touch the road and the other two sides touch the adjacent land). As a result, it was confirmed that there was a correlation between “ratio R of window area W and floor area F” and “ventilation frequency V” in each room (see FIG. 3).

  By using the correlation data D thus obtained, the ventilation frequency V and the required window area W can be calculated as described below.

<Calculation of ventilation frequency>
If the above correlation is used, the ventilation frequency V can be calculated from the ratio R between the window area W and the floor area F already determined in the room 3 of the predetermined floor 2 of the building 1. The ventilation frequency V thus calculated can be used as one index for grasping the indoor environment in an existing building or a building that has already been designed.

<Calculation of necessary window area>
If the above correlation is utilized, the required window area W1 can be calculated from the floor area F of the living room 3 on the predetermined floor 2 of the building 1 and the desired ventilation frequency V. A building having a better indoor environment can be designed by determining the size and the number of installed windows 4 with the necessary window area W1 calculated in this way as a guide.

  In addition, when calculating | requiring the said correlation, you may consider the influence by the difference in the floor number of a neighbor. It can be said that the correlation data D shown in FIGS. 3 and 4 reflects the influence of the rank.

<Calculation system of ventilation frequency and required window area>
An example of the calculation system 10 is shown. A calculation system 10 shown in FIG. 5 includes a computer 11 including an arithmetic processing unit (CPU) 12 and a storage device (correlation data storage means) 13. The computer 11 has a display (input / output screen) 14. The storage device 13 stores correlation data D between the ratio R of the window area W to the floor area F of the room 2 or the room 3 in the predetermined floor of the building 1 and the ventilation frequency V per unit time. Yes.

  The arithmetic processing unit 12 functions as a ventilation frequency calculation means 12A that calculates the ventilation frequency V per unit time from the ratio R between the window area W and the floor area F of the living room 2 or the living room 3 based on the correlation data D, or Based on this correlation data D, it functions as necessary window area calculating means 12B for calculating the required window area W1 from the floor area F of the living room 2 or the living room 3 and the estimated ventilation frequency V per unit time (see FIG. 5).

  As for the input screen (interface) on the display 14 of the calculation system 10, for example, “peripheral building”, “building position”, “opening (window) position”, and “floor” are selected from the pull-down menu, and “window area”, “ It is possible to use numerical values for “floor area” and “ventilation frequency” (see FIG. 6). Furthermore, a pull-down menu that can be selected when the number of ventilations is to be increased may be provided (see FIG. 6).

  An example of the hierarchical display of ventilation routes is shown in FIG. The hierarchy can be set in the actual building 1 in consideration of the assumed mode.

  Based on the correlation data D, the calculation system 10 described so far and the calculation method using the calculation system 10 can calculate the ventilation frequency V or the required window area W1 more easily and with accuracy that is not problematic in practice. It is suitable as a tool for supporting ventilation planning.

  The above-described embodiment is an example of a preferred embodiment of the present invention, but is not limited thereto, and various modifications can be made without departing from the scope of the present invention. For example, when the fluctuation range of the ventilation frequency V due to the wind direction is large, the ventilation frequency V may be obtained by eliminating the excessive or excessive numerical values by statistical processing, and limited to one direction in consideration of the prevailing wind. May be obtained.

  The present invention is suitable for application to a ventilation plan in a building constructed in a densely populated area in an urban area.

1 ... Building 2 ... Floor 3 ... Living room 4 ... Window (opening)
5 ... Partition 10 ... Calculation system 12A ... Ventilation frequency calculation means 12B ... Necessary window area calculation means 13 ... Storage device (correlation data storage means)
F: Floor area W ... Window area W1 ... Necessary window area R ... Ratio of window area W to floor area F V ... Ventilation frequency D ... Correlation data

Claims (8)

Correlation between the ratio R obtained in advance by statistical processing and the ventilation frequency V with respect to the ventilation frequency V per unit time by a window that can be opened from the ratio R of the window area W and floor area F of the room on a predetermined floor A method for calculating the ventilation frequency, wherein the calculation is based on a relational expression . Consider the influence of the presence or absence of internal partitions of the building, the method for calculating the ventilation rate of Claim 1. The calculation method of the ventilation frequency of Claim 2 which considers the influence of the presence or absence of a building adjacent to the said building, and / or a floor number. A correlation data storing means for storing correlation data and the ratio R of the window area W and the floor area F of the room, the ventilation rate V per unit by opening windows time at a predetermined floor of a building,
Based on the correlation data, a ventilation frequency calculating means for calculating a ventilation frequency V per unit time by the window opened from the ratio R of the living room or the window area W and floor area F of the living room;
Ventilation frequency calculation system characterized by comprising. Correlation between the ratio R and the ventilation frequency V obtained in advance by statistical processing of the required window area W1 from the floor area F of the room on the predetermined floor of the building and the estimated ventilation frequency V per unit time by the openable window A calculation method of a necessary window area, which is calculated based on a relational expression . The calculation method of the required window area of Claim 5 which considers the influence by the presence or absence of the partition inside the said building. The calculation method of the required window area of Claim 6 which considers the influence of the presence or absence of a neighboring building of the said building, and / or a floor number. Correlation data storage means for storing correlation data between the ratio R between the window area W and the floor area F of the room on a predetermined floor of the building and the ventilation frequency V per unit time by the openable window;
Based on the correlation data, a necessary window area calculating means for calculating a required window area W1 from a floor area F of the living room and an estimated ventilation frequency V per unit time by an openable window;
A required window area calculation system comprising:

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