JP2013020510A - Air volume calculation program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air volume calculation program enabling reduction in calculation time.SOLUTION: An air volume calculation program for calculating an air volume to be used in a ventilation plan for ventilating inside of a building with a predetermined ventilation system instructs a computer to execute: a first step of calculating a floor area of a non-ventilation part 13 included in a total floor area of the building; a second step of calculating a reference floor area by subtracting the floor area of the non-ventilation part 13 from the total floor area of the building; and a third step of calculating a reference volume as an air volume by multiplying the reference floor area calculated in the second step by reference ceiling height.

Description

  The present invention relates to a volume calculation program.

  Conventionally, in general ventilation that ventilates the entire building, the volume of the room, etc. of the entire building is calculated by multiplying the floor area of the room, etc. by the ceiling height of the room, etc., and each room calculated for each ventilation target area, etc. (See, for example, Patent Document 1). Here, the air volume refers to the volume of a space such as a room in a building and is a basis for calculating the number of ventilations in the ventilation plan.

JP 2006-58955 A

  However, the interior shape of a house is generally more complex than other buildings. In the above method for calculating the volume, there is a problem that it is necessary to calculate the volume for each room and add them, which is troublesome. For example, when there is a non-ventilated portion such as a concavo-convex portion in one room, it is necessary to divide into a plurality of regions, obtain the air volume for each region, and add them.

  The subject of this invention is providing the volume calculation program which can shorten calculation time.

In order to solve at least one of the above problems, the invention according to claim 1 is, for example, as shown in FIG. 1, FIG. 3, and FIG.
In the volume calculation program for calculating the volume used in the ventilation plan to ventilate the building with a predetermined ventilation system,
In computer 100,
A first procedure for calculating the floor area of the non-ventilated portion 13 included in the total floor area of the building;
A second procedure for calculating a reference floor area by subtracting the floor area of the non-ventilated portion 13 from the total floor area of the building;
A third procedure for calculating a reference volume as an air volume by multiplying the reference floor area calculated by the second procedure by a reference ceiling height;
Is executed.

  Here, the total floor area means the total floor area on the indoor side surrounded by the outer peripheral wall. External storage etc. are excluded. The reference ceiling height refers to any representative design dimension of the building ceiling height.

  According to the first aspect of the present invention, in the air volume calculation program for calculating the air volume used in the ventilation plan for ventilating the inside of the building by the predetermined ventilation system, the computer 100 calculates the air volume using the second procedure. Since the third procedure to calculate the reference volume as the air volume by multiplying the reference floor area by the reference ceiling height is performed, the calculation man-hour is reduced compared to the case where the air volume is calculated for each room and added. Therefore, the calculation time can be shortened.

For example, as shown in FIG. 1, FIG. 4, FIG. 7, and FIG.
The volume calculation program according to claim 1, further comprising:
The differential volumes 14, 25 are calculated based on the difference 14a, 25a between the reference ceiling height, the ceiling height different from the reference ceiling height, and the floor areas 14b, 25b of the floor facing the ceiling with the different ceiling height. Fourth procedure,
And execute
In the fourth procedure, when the ceiling heights 14a and 25a different from the reference ceiling height are higher than the reference ceiling height, when calculating the air volume in the third procedure, the difference volume 14, 25 is added.

  According to the second aspect of the present invention, in the third procedure, when the air volume is calculated, the difference volumes 14 and 25 are added to the reference volume. It is possible to obtain a more appropriate volume.

For example, as shown in FIG. 1, FIG. 5, and FIG.
The volume calculation program according to claim 1 or 2, further comprising:
In computer 100,
A fifth procedure for calculating the volume of the ventilation target 10 not included in the volume related to the total floor area of the building;
And execute
In the third procedure, when the air volume is calculated, the volume of the ventilation target is added to the reference volume.

  According to the invention of claim 3, in the third procedure, when calculating the volume, the volume related to the total floor area of the building is obtained by adding the volume of the ventilation target 10 to the reference volume. As for the volume of the ventilation object 10 not included in the volume, the volume can be corrected by calculating the volume only in the respective correction portions with respect to the reference volume, so that a more appropriate volume can be obtained.

For example, as shown in FIG. 1, FIG. 5, and FIG.
In the air volume calculation program as described in any one of Claims 1-3, Furthermore,
In computer 100,
A sixth procedure for calculating the volume of the non-ventilated objects 11 and 12 included in the volume related to the total floor area of the building;
And execute
In the third procedure, the volume of the non-ventilated objects 11 and 12 is subtracted from the reference volume when the air volume is calculated.

  According to the invention described in claim 4, in the third procedure, when calculating the air volume, by subtracting the volume of the non-ventilated objects 11, 12 from the reference volume, the non-ventilated object 11 is calculated. , 12, the volume can be calculated by calculating the volume only in the respective correction portions with respect to the reference volume, so that a more appropriate volume can be obtained.

The invention according to claim 5 is, for example, as shown in FIGS. 1, 6, 9 to 15,
In the air volume calculation program according to any one of claims 1 to 4,
In computer 100,
A seventh procedure for calculating the volume from the upper floor height to the lower floor reference ceiling height in the staircases 30, 40, 50, 60, 70, 80, 81, 90, 91;
And execute
In the third procedure, when calculating the air volume, the reference volume is changed from the floor height of the upper floor in the staircase 30, 40, 50, 60, 70, 80, 81, 90, 91 to the lower floor. It is characterized by adding the volume up to the reference ceiling height.

  According to the fifth aspect of the present invention, when calculating the volume in the third procedure, the staircase 30, 40, 50, 60, 70, 80, 81, 90, 91 is added to the reference volume. Since the volume of the volume from the floor height of the upper floor to the reference ceiling height of the lower floor can be corrected in the staircase, a more appropriate volume can be obtained.

  ADVANTAGE OF THE INVENTION According to this invention, the volume calculation program which can shorten calculation time can be provided.

It is a flowchart which shows an example of the volume calculation program which concerns on this invention. It is a display example displayed on the display unit when executing the air volume calculation program according to the present invention, and is a diagram showing the air volume to be ventilated as a program execution result. It is a figure which shows the reference | standard volume etc. of the air volume of the ventilation object part similarly. It is a figure which shows correction | amendment of the air volume of a part different from a reference | standard ceiling height same as the above. It is a figure which shows correction | amendment of a partial volume as well. FIG. 6A is a diagram illustrating correction of air volume of a staircase portion of a two-story building, and FIG. 5B is a diagram illustrating correction of air volume of a staircase portion of a three-story building. It is a figure which shows an example of the building used as the object which calculates the air volume in the air volume calculation program which concerns on this invention, and is a figure which shows a 1-story building. It is a figure which shows the 1-story building which concerns on correction | amendment of a part different from a reference | standard ceiling height. (A) is an upper floor plan view showing a staircase, and (b) is a view showing a two-story building related to correction of the staircase portion of a building having a storehouse on the second floor. (A) is a 2nd floor plan view showing a staircase, and (b) is a view showing a 2 story building related to correction of the staircase portion of a building with a warehouse on the 1st floor. (A) is an upper floor plan view showing a staircase, and (b) is a view showing a two-story building related to correction of the staircase portion of a building having a storehouse on the second floor. (A) is a 2nd floor plan view showing a staircase, and (b) is a view showing a 2 story building related to correction of the staircase portion of a building with a warehouse on the 1st floor. (A) is an upper floor plan view showing a staircase, and (b) is a diagram showing a two-story building related to correction of the staircase portion of the building. (A) is a top view of the second floor and the third floor showing the staircase, and (b) is a diagram showing a three-story building related to the correction of the staircase portion. (A) is a plan view of the third floor showing the staircase, (b) is a plan view of the second floor showing the staircase, and (c) shows a three-story building related to the correction of the staircase portion. FIG. It is a block diagram which shows schematic structure of the computer which executes the air volume calculation program which concerns on this invention.

  Embodiments of the present invention will be described below with reference to the drawings.

<Embodiment>
With reference to FIG. 1, an operation of a volume calculation program for calculating a volume used in a ventilation plan that is executed by a computer and ventilates a building with a predetermined ventilation system will be described. In addition, in the building for which the air volume is calculated in the present embodiment, first-class ventilation that supplies air to the living room part and exhausts it from the non-residential part such as a corridor via a fitting having an effective opening for ventilation. The floor central ventilation system (predetermined ventilation system) system, which is a facility, is adopted, and a house is assumed in which all indoor spaces can be handled as living rooms. In this house, the computer includes a portion different from the reference ceiling height, correction of a portion having a different reference ceiling height, correction of a partial volume, and correction of a staircase portion. The back of the hut and the back of the ceiling are separated from the living room by an airtight layer, and the storage of the shed and the back of the shed is a low ceiling storage room with a ceiling of about 0.9m to 1.4m. By excluding undercuts and other fixtures and securing ventilation individually, they will be excluded from the target of air volume determination.

  In the following calculation of the volume, the floor area is determined by the area surrounded by the center line of the wall, and the ceiling height is the dimension from the floor finish surface to the ceiling finish surface.

As shown in FIG. 1, as a procedure for calculating the air volume, a reference volume to be ventilated is obtained as an air volume (step S1), and the air volume is corrected with a difference volume at a portion different from the reference ceiling height (step S2). The air volume is corrected with the partial volume of the ventilation target (step S3), and the air volume is corrected with the volume of the ventilation target of the staircase portion (step S4). Asks. In this way, the computer calculates the air volume by means of arithmetic processing means such as spreadsheet software.
Here, “the air volume to be ventilated (374.16 m ³ )” shown in FIG. 2 is changed to “the reference volume (335.0952 m ³ ) of the air volume of the ventilation target portion” shown in FIG. "II standard ceiling height and the correction value of the gas product of different parts (22.2656m ^3)" and "III partial correction value of air volume (1.9875m ^3)" in FIG. 5 and, FIGS. 6 (a) Is added to the “IV staircase portion correction value (14.8042 m ³ )” and then rounded up to two decimal places.

(Reference volume of air volume of I ventilation target part)
In step S1, the reference volume of the air volume to be ventilated is calculated as the air volume. Here, in order to obtain the reference volume, the computer 100 causes the computer 100 to calculate the floor area of the non-ventilated portion 13 included in the total floor area of the building, the non-ventilation from the total floor area of the building. A second procedure for calculating the reference floor area by subtracting the floor area of the target portion 13, and a third procedure for calculating the reference volume as an air volume by multiplying the reference floor area calculated by the second procedure by the reference ceiling height. The procedure is executed.

Here, regarding the total floor area shown in FIG. 2, in the case of a building using a normal panel (90 mm), the user can refer to the building confirmation application document and the like in the “total floor area” column. Enter a value for. On the other hand, in the case of a building using a 120 mm panel, in order to obtain the floor area, the user can enter the area in the module ² unit with reference to the drawing in the “input box for 120 mm outer wall panel specification” in FIG. Calculate and enter this calculated area. This is because a building using a 120 mm panel has a larger total floor area calculated by law, but the air volume object is not different from a normal panel. For 120 mm panel specifications, the computer 100 calculates the total floor area subject to air volume in the “Outer wall 120 mm panel specification (m ² )” column based on the value entered in the “Outer wall 120 mm panel specification field”. Displayed as a result. The user inputs the value in “Total floor area”. For the room name, the user inputs an arbitrary room name.

  Here, the non-ventilated part included in the total floor area of the building is, for example, a storage case 13 (FIG. 7) attached to the living room, a close-in, a closet, a walk-in closet, a storage room, an entrance, an airfield. A room, etc., and a bathroom, toilet, etc. when performing local ventilation.

As shown in FIG. 3, for the non-ventilated portion included in the total floor area of these buildings, “intrusion (Japanese-style room)” as the room name of “floor area of rooms to be excluded” in (ii) , “Room (washing)”, “toilet 1”, “bathroom”, “toilet 2”, and “module ² ” corresponding to each room name, “3”, “1”, “1 .75 ”,“ 2 ”, and“ 1.75 ”are input by the user using the input unit 102, and the computer 100 receives“ 2.44843 ”,“ 0.8281 ”,“ 1.4492 ”,“ 1. 6562 ”,“ 1.4492 ”, and the total thereof (7.867 m ² ) (first procedure), and the floor of the non-ventilated portion 13 is calculated from the total floor area (147.49 m ² ) of the building. area of (7.867m ²⁾ by subtracting to calculate the reference floor area (139.623m ²⁾ (a 2 steps), the reference floor area (139.623 m ² ) calculated by the second procedure is multiplied by the reference ceiling height (2.4 m), and the reference volume (335.0952 m ³ ) is calculated as the air volume ( Third procedure). Here, the total floor area of the building is determined in accordance with Article 2 of the Building Standard Law Enforcement Order. One module is 0.91 m, and one module ² is 0.8281 m ² . The floor area m ² of the room or the like to be excluded is obtained by the following formula when the value A is input to (module ² ).
(1) Floor area (m ² ) = A × 0.8281 of rooms to be excluded

  Before determining the air volume of the entire building, as the floor area of the non-ventilated portion, exclude the non-ventilated portion included in the total floor area of these buildings from the total floor area of the building. Thus, the calculation man-hour is reduced compared with the case of dividing the volume of the non-ventilated object after obtaining the air volume of the entire building, so that the calculation time can be shortened.

(Correction of the volume of the part different from the II standard ceiling height)
In step S2, a differential volume of a portion different from the reference ceiling height is obtained, and the air volume obtained in step S1 is corrected. Here, taking the atrium 14 shown in FIG. 7 as an example, in order to correct the air volume obtained in step S1, the computer 100 is informed of a difference 14a between the reference ceiling height and a ceiling height different from the reference ceiling height. And a fourth procedure for calculating the differential volume based on the floor area of the floor surface facing the ceiling having the different ceiling height, wherein the ceiling height different from the reference ceiling height is a reference in the fourth procedure. When the height is higher than the ceiling height, the difference volume 14 is always added to the reference volume when calculating the air volume in the third procedure.

  Here, the reference ceiling height and the ceiling height different from the reference ceiling height include, in addition to the ceiling height of the portion where the ceiling height is higher than the reference ceiling height as shown in the atrium 14 shown in FIG. There are a ceiling height (left side) of the portion 25a higher than the reference ceiling height shown in b), a ceiling height (right side) of the portion 26a lower than the reference ceiling height, and the like.

As shown in Fig. 4, the room names are "entrance", "Hall 1 / High Place", "Hall 1 / Low Place", "Washroom", "Kitchen", "Living Room / Dining Room", "Western Style" The user inputs the room names of “1 · Lower place” and “Hall 2” using the input unit 102. As “module ² ” corresponding to “entrance”, “hall 1 / high place”, “living room / dining room”, “5”, “2.5”, “28” in the flat (high) column, As the “ceiling height” corresponding to each room name, the user inputs “3.458”, “3.278”, and “3.278” in the higher column using the input unit 102. In addition, “Module ² ” corresponding to “Hall 1 / Lower Place”, “Toilet”, “Kitchen”, “Western 1 / Lower Place”, and “Hall 2” will be displayed in the flat (low) column. 9.5 ”,“ 4 ”,“ 10 ”,“ 9.375 ”,“ 5 ”, and“ ceiling height ”corresponding to each room name,“ 2.25 ”,“ The user inputs “2.25”, “2.3”, “2.25”, and “2.25” using the input unit 102. Based on these input values, the computer 100 determines “entrance”, “hall 1 / high place”, “hall 1 / low place”, “washroom”, “kitchen”, “living room / dining room”, “western room 1”. The air volume of “Low place” and “Hall 2” is “4.3807”, “1.8177”, “−1.1801”, “−0.4969”, “−0.8282”, “20. 3581 ”,“ −1.646 ”, and“ −0.6211 ”are calculated, and the sum (22.2656 m ³ ) of these is calculated as the differential volume.

In addition, for the floor area of each ceiling shape, the user inputs the horizontal projection area in units of ^two modules. For the high side and the low side of the ceiling height, the user inputs the design dimensions of the high side and the low side such as the sloped ceiling regardless of the reference ceiling height.
When the ceiling shape is only flat, the user inputs the floor area to “flat (high)” and the ceiling height to “high side” regardless of the design dimensions. When the floor area is “flat (high)”, the calculation result does not change even if the “floor side” is entered. Here, in the case of the ceiling height of the portion 26a lower than the reference height, the user inputs a value in the “lower side”. About the ceiling height of the part 26a lower than this reference height, correction | amendment can be abbreviate | omitted as a safe value.

In addition, the calculation of the air volume V of the ceiling height with respect to the floor area of each ceiling shape is as follows. (1) Flat (high) is A (module ² ), (2) Flat (low) is B (module ² ), (3) Single stream is C (module ² ), (4) The dormitory is D (module ²⁾ ), (5) E (module ² ) is the reverse, and the ceiling height is F (m) for the “high side” and G (m) for the “low side”, and the total air volume is V (m ^3). ). In addition, about a flat part, the volume of flat (high) and flat (low) is calculated | required by Formula V1 shown below.

(1) Flat part (high): V1 = A × 0.8281 × (F−reference ceiling height) + B × 0.8281 × (G−reference ceiling height)
(2) Single flow part: V2 = C × 0.8281 × {(F−G) × ½ + G−reference ceiling height}
(3) Dormitory part: V3 = D × 0.8281 × {(F + G) × 1/3 + G−reference ceiling height}
(4) Reverse part: V4 = E × 0.8281 × {(F + G) × 2/3 + G−reference ceiling height}
V = V1 + V2 + V3 + V4

(III Correction of partial volume)
In step S3, a partial volume is obtained, and the volume obtained in step S2 is corrected. Here, in order to correct the air volume obtained in step S2, the computer 100 calculates a fifth procedure (2.8156 m ³ ) of the ventilation target 10 that is not included in the volume related to the total floor area of the building, And a sixth procedure for calculating the volume (−0.8281 m ³ ) of the non-ventilated object 11 included in the volume relating to the total floor area of the building, and calculating the air volume in the third procedure. Further, the volume of the ventilation object is added to the reference volume, and the volume of the non-ventilation object 11 is subtracted from the reference volume.

  Here, the ventilation target not included in the volume related to the total floor area of the building is, for example, the loft 10 (FIG. 7), the bay window portion, and the like. Non-ventilated objects included in the volume related to the total floor area of the building are, for example, the top bag 11 (FIG. 7), the ground bag 12 (FIG. 7), and other parts, such as hanging closets, cabinets, hanging cabinets, and partition storage furniture. (Only when the upper part is open).

Further, as shown in FIG. 5, regarding partial air volume correction, (i) when the shape is not complicated, “2” is added to “floor area” and “addition” is added to “addition / subtraction” in “loft” of a single flow. The user inputs 2 m to the “higher side” of the “height” and 1.4 (m) to the “lower side”, and the computer 100 calculates the volume (2.8156 m ³ ) to be corrected. Here, taking an example of a single-flow ceiling shape, reference numeral 20 shown in FIG. 8A is a single-flow ceiling shape. In addition, in the “hanging cabinet”, the user inputs a flat height of “2” for “floor area”, “subtraction” for “adjustment”, and 0.5 (m) for “higher side” of “height”, and correction. The computer 100 calculates the target volume (−0.8281 m ³ ). (Ii) When the shape is complicated, for example, for correction of a complicated portion such as a cylindrical portion provided on a ceiling such as a top light, the user directly inputs a calculation formula in the “calculation formula” column. The computer 100 calculates the volume to be corrected. In the “addition / subtraction” column, “addition” and “subtraction” are displayed as selectable.

In addition, the calculation of the air volume V of the ceiling height for each floor area is as follows. (1) Flat (high) is A (module ² ), (2) Flat (low) is B (module ² ), (3) Single stream is C (module ² ), (4) The dormitory is D (module ²⁾ ), (5) E (module ² ) is the reverse, and the ceiling height is F (m) for the "high side" and G (m) for the "low side", and the total air volume is V (m ³ ). In addition, about a flat part, the volume of flat (high) and flat (low) is calculated | required by Formula V1 shown below.

(1) Flat part: V1 = A × 0.8281 × F + B × 0.8281 × G
(2) Single flow part: V2 = C × 0.8281 × {(F + G) × 1/2}
(3) Dormitory part: V3 = D × 0.8281 × {(FG) × 1/3}
(4) Reverse part: V4 = E × 0.8281 × {(FG) × 2/3}
V = V1 + V2 + V3 + V4

(IV correction of stairs volume)
In step S4, the air volume of the staircase portion is obtained, and the air volume obtained in step S3 is corrected. Here, in order to correct the air volume obtained in step S3, the computer 100 is caused to execute a seventh procedure for calculating the volume from the upper floor height to the lower floor reference ceiling height in the staircase 30. In the third procedure, when calculating the air volume, the volume (14.8042 m ³ ) of the staircase 30 or the like is added to the reference volume.

  Here, the volume from the floor height of the upper floor to the reference ceiling height of the lower floor in the staircase is, for example, the volume of the staircase 30 in FIG. 9B and the volume of the staircase 40 in FIG. 11 (b), the volume of the staircase 60 in FIG. 12 (b), the volume of the staircase 70 in FIG. 13 (b), the staircase 80 in FIG. 14 (b), 81, the volumes of the staircases 90 and 91 in FIG. In FIG. 9 (b), the portion 31 different from the reference point ceiling height and the overlapping portion 32 of the staircase 30 have a volume that overlaps the volume of the staircase 30. Subtract from the volume of the portion 31 that is different from the volume or the reference point ceiling height. Moreover, in FIG.11 (b), since the storehouse is provided between the 1st floor and the 2nd floor, the volume of the staircase 50 is large. In FIG. 13, a portion 72 where the blow-through portion 71 and the staircase 70 overlap has a volume overlapping with the volume of the staircase 70, so the volume of the overlapped portion 72 is equal to the volume of the staircase 70 or the reference point ceiling height. And subtracting from the volume of the different portion 71.

(2 stories)
In addition, as shown in FIG. 6A, the correction value (14.8042 m ³ ) of the air volume of the two-story staircase is (i) “staircase 1”, “hall” 2 ”,“ staircase 2 ”, and“ staircase 1 and 2 holes ”. In “Staircase 1”, the floor height is 4.123 (m), “1F to S2 or 2F” of “Staircase area” is 2.25 (module ² ), The user inputs 1.25 (module ² ) in “Area”, and the computer 100 calculates the correction target volume (8.2218 m ³ ). In “Hall 2”, the user inputs 4.123 (m) in “Floor height” and 3.125 (Module ² ) in “1F to S2 or 2F” in “Staircase area”, and the correction target The computer 100 calculates the air volume (4.4589 m ³ ). In “staircase 2”, the user inputs 4.123 (m) for “floor height” and 2.25 (module ² ) for “S2 to 2F” for “area of staircase”. The computer 100 calculates the air volume (3.2104 m ³ ). (Ii) Regarding the correction of the ceiling height of the staircase on the top floor, the “floor (low)” of “floor area of each ceiling shape” is set to 8.75 (module ² ), and the “low” side of “height” is set. 2.25 (m) is input by the user, and the computer 100 calculates the correction target volume -1.0869 (m ³ ). The ceiling height H is obtained by dividing the air volume by a value obtained by multiplying the total floor area value by the module value (0.8281).

  H = air volume / (total floor area x 0.8281)

The calculation of the volume V of the staircase portion is as follows. The floor height is set to H (m), and in the area of the staircase, (1) 1F to 1F is A (module ² ), (2) 1F is to B2 (module ² ), (3) 1F to S2F or 2F is C (module ² ), (4) S2F to 2F is D (module ² ), and (5) 1F to 1F is stored in E (module ² ), ( 6) 1F storehouse to S2F is F (module ² ), (3) 1F to S2F or 2F is G (module ² ), and the stairwell area is I (module ² ).

  V = (A + B + C + D) × 0.8281 × (H−reference ceiling height) + (E + G + F) × 0.8281 × (H−reference ceiling height−0.18) + I × 0.8281 × H

(3 stories)
In addition, as shown in FIG. 6 (b), regarding the correction of the air volume of the three-story staircase part, (i) “stairs room”, “floor height” is 2.758 (m), “step room area” 5 to "2F~3F" on "(module ^2), 1 to" stair blow-area "(the module ²⁾ user inputs the correction to air volume 3.7662 to (m ³⁾ computer 100 calculates. (Ii) Regarding the correction of the ceiling height of the stairs on the top floor, “Flat (high)” of “the floor area of each ceiling shape” is 2 (module ² ), “single flow” is 4 (module ² ), “high” The user inputs 3.365 (m) to the “higher side” of the height and 2.4 (m) to the “lower side” of the “height”, and sets the correction target volume 3.1965 (m ³ ). The computer 100 calculates. Here, regarding “flat (high)”, the computer 100 calculates the air volume (m ³ ) to be corrected based on 2 (module ² ) and “high side” 3.365 (m) of “height”. Calculated and corrected for “single flow” based on 4 (module ² ), “high side” of “height” 3.365 (m), “low side” of “height” 2.4 (m) The computer 100 calculates the air volume (m ³ ) of the object, and sums these calculation results to calculate the air volume 3.1965 (m ³ ). The ceiling height H is obtained by dividing the air volume by a value obtained by multiplying the total floor area value by the module value (0.8281).

  H = air volume / (total floor area x 0.8281)

The calculation of the volume V corrected for the staircase portion is as follows. The floor height is H (m), and in the area of the staircase, (1) 1F to ² is A (module ² ), (2) 2F to 3F is B (module ² ), and the area that overlaps the upper floor (3) Let 1F to 2F be C (module ² ) and (6) 2F to 3F be D (module ² ).

  V = (A + B) × 0.8281 × (H−reference ceiling height) + (C + D) × 0.8281 × (H−reference ceiling height−0.18) + I × 0.8281 × H

(Computer)
FIG. 16 is a block diagram illustrating a schematic configuration of the computer 100. As shown in this figure, a computer 100 includes a CPU (Central Processing Unit) 101, an input unit 102, a display unit 103, an HD (Hard Disk) 104, and a RAM (Random Access Memory) 105. They are connected so that they can communicate with each other.

  The input unit 102 includes a key group and outputs a pressed key signal to the CPU 101. The input unit 102 does not necessarily include a key group, and may include a touch panel, for example.

  The display unit 103 includes a display, and displays various screens based on various signals input from the CPU 101. The display unit 103 displays the input value by the input unit 102 and the calculation result of the volume calculation program.

  The CPU 101 controls each unit of the computer 100 in an integrated manner, executes processing based on a predetermined program in accordance with an input instruction, and transfers instructions and data to each functional unit. ing. Specifically, the CPU 101 reads a volume calculation program stored in the HD 104 according to an operation signal input from the input unit 102, and executes processing according to the volume calculation program. And CPU101 outputs the display control signal for displaying a process result to the display part 103 suitably, and displays corresponding display information.

  The HD 104 stores a program and data for setting the computer 100 to an initial state when the power is turned on, and a program for realizing the calculation processing described in the above embodiment.

  The RAM 105 is a storage area for temporarily storing various data as a work area of the CPU 101. Note that the air volume calculation program described in the present embodiment may be stored in the HD 104 through an electric communication line, or may be recorded on a portable recording medium such as a USB memory or a flash memory.

In the present embodiment, a volume calculation program for calculating a volume used for a ventilation plan for ventilating a building with a predetermined ventilation system is installed in the HD 104 of the computer 100, and the second procedure is installed in the computer 100. In order to execute the third procedure to calculate the reference volume as the air volume by multiplying the reference floor area calculated by the reference ceiling height, the air volume is calculated for each room, and compared with the case of adding them Since man-hours are reduced, calculation time can be shortened.
In addition, when data such as total floor area, floor area of rooms to be excluded, ceiling height, and the like are input by the input unit 102, the computer 100 executes arithmetic processing by the CPU 101 based on the input data, The calculation result is displayed on the display unit 103.

  In the third procedure, when the air volume is calculated, the difference volumes 14 and 25 are added to the reference volume, so that the necessary air volume can be corrected and a more appropriate air volume can be obtained. be able to.

  In the third procedure, when the air volume is calculated, the volume of the ventilation target 10 that is not included in the volume related to the total floor area of the building is obtained by adding the volume of the ventilation target 10 to the reference volume. Since the volume can be corrected by calculating the volume only for each correction portion with respect to the reference volume, a more appropriate volume can be obtained.

  In the third procedure, when calculating the air volume, by subtracting the volume of the non-ventilated objects 11 and 12 from the reference volume, each of the volumes of the non-ventilated objects 11 and 12 with respect to the reference volume is determined. Since the volume can be corrected by calculating the volume only in the correction portion, a more appropriate volume can be obtained.

  In the third procedure, when calculating the air volume, by adding the volume of the staircase 30 to the reference volume, the floor height of the upper floor in the staircase to the reference ceiling height of the lower floor Since the volume can be corrected with respect to the volume, a more appropriate volume can be obtained.

DESCRIPTION OF SYMBOLS 10 Loft 11 Top bag 12 Ground bag 13 Basket 14 Blow-out 30, 40, 50, 60, 70, 80, 81, 90, 91 Staircase 100 Computer 102 Input part 103 Display part 106 Bus

Claims (5)

In the volume calculation program for calculating the volume used in the ventilation plan to ventilate the building with a predetermined ventilation system,
On the computer,
A first procedure for calculating the floor area of the non-ventilated part included in the total floor area of the building;
A second procedure for calculating a reference floor area by subtracting the floor area of the non-ventilated portion from the total floor area of the building;
A third procedure for calculating a reference volume as an air volume by multiplying the reference floor area calculated by the second procedure by a reference ceiling height;
The volume calculation program to execute. The volume calculation program according to claim 1, further comprising:
A fourth procedure for calculating a differential volume based on a difference between the reference ceiling height and a ceiling height different from the reference ceiling height, and a floor area of a floor surface facing the ceiling having the different ceiling height;
And execute
In the fourth procedure, when the ceiling height different from the reference ceiling height is higher than the reference ceiling height, the difference volume is added to the reference volume when calculating the air volume in the third procedure. A feature volume calculation program. The volume calculation program according to claim 1 or 2, further comprising:
On the computer,
A fifth procedure for calculating the volume of the ventilation target not included in the volume related to the total floor area of the building;
And execute
In the third procedure, when calculating the air volume, a volume calculation program characterized by adding the volume of the ventilation target to the reference volume. In the air volume calculation program according to any one of claims 1 to 3,
On the computer,
A sixth procedure for calculating the volume of the non-ventilated object included in the volume related to the total floor area of the building;
And execute
In the third procedure, when calculating the air volume, the volume of the ventilation target is added to the reference volume, and / or the volume of the non-ventilation target is subtracted from the reference volume. Air volume calculation program. In the air volume calculation program according to any one of claims 1 to 4,
On the computer,
A seventh procedure for calculating the volume from the floor height of the upper floor to the reference ceiling height of the lower floor in the staircase;
And execute
In the third procedure, when calculating the air volume, a volume calculation from the upper floor height to the lower floor reference ceiling height in the staircase is added to the reference volume. program.

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