JP2022150508A - Arrangement candidate determination method for air flow adjusting device and air-conditioning air supply system - Google Patents

Abstract

To provide a method capable of determining a candidate of an appropriate arrangement of an air flow adjusting device regarding a place where the air flow adjusting device can be actually installed on a duct pipe system since the arrangement candidate of the air flow adjusting device is determined based on the capacity of a room, etc., conventionally but it is optimal where the air flow adjusting device is arranged on the duct pipe system is not considered.SOLUTION: An arrangement candidate determination method for an air flow adjusting device A includes determining a candidate of an appropriate arrangement of the air flow adjusting device A in systems of duct pipes 3 and 4 for supplying air-conditioned air to each air-conditioning target space based on a tendency of an air-conditioning load that is an increase/decrease degree of the air-conditioning load in each of a plurality of air-conditioning target spaces.SELECTED DRAWING: Figure 2

Description

The present invention relates to an arrangement candidate determination method for an air volume adjustment device and an conditioned air supply system.

As a means of realizing energy saving, installation of an air volume adjustment device can be mentioned. Conventionally, in order to achieve energy saving using an air volume adjustment device, the ratio of ventilation air volumes in a plurality of rooms is calculated to adjust the opening degree in the duct (Patent Document 1 (Japanese Patent No. 4130788)).

Conventionally, placement candidates for the air volume adjustment device are determined based on the volume of the room, etc., but there is a problem that the optimum placement of the air volume adjustment device on the duct piping system is not taken into consideration.

A method for determining candidates for placement of an air volume adjustment device according to a first aspect includes duct piping for sending air-conditioned air to each air-conditioned space based on the tendency of the air-conditioning load, which is the degree of increase or decrease in the air-conditioning load, in each of the multiple air-conditioned spaces. Candidates for suitable placement of air volume regulators in the system are determined.

In this layout candidate determination method, by determining a suitable layout candidate for the air volume adjustment device based on the tendency of the air conditioning load of each space to be air conditioned, it is possible to reduce costs by not arranging air volume adjustment devices with low energy-saving effects. can be done.

The second aspect of the air volume adjustment device placement candidate determination method is the method of the first aspect, and the tendency of the air conditioning load is the degree of increase or decrease of the air conditioning load for each of the plurality of air conditioned spaces for each time slot.

In this placement candidate determination method, by using the air conditioning load trend of each air-conditioned space for each time zone, even if the air-conditioning load trend of each air-conditioned space changes depending on the time zone, the air volume adjustment device can be used. It can be placed at any suitable location in the duct plumbing system.

The method for determining the arrangement candidate of the air volume adjustment device of the third aspect is the method of the first aspect or the second aspect, wherein the tendency of the air conditioning load is determined based on the power consumption of the equipment related to the air conditioning of the entire building, It is obtained from the air conditioning load ratio of the air conditioned space.

In this layout candidate determination method, by using the power consumption of the air-conditioning equipment for the entire building and the air conditioning load ratio of each air-conditioned space in the entire building, the power consumption of the air-conditioning equipment for the entire building depending on the time of day. changes, the trend of air-conditioning load in each space to be air-conditioned can be obtained with high accuracy.

A fourth aspect of the air volume adjustment device arrangement candidate determination method is the method of the first to third aspects, wherein an air volume adjustment device is installed in each of the duct pipes extending to a plurality of air-conditioned spaces with different air conditioning load tendencies. Candidates for suitable placement of the air volume adjustment devices are determined so that they are placed.

In this placement candidate determination method, no air volume adjustment device is placed in a duct pipe extending to air-conditioned spaces with similar air-conditioning load trends, but duct pipes extending in air-conditioned spaces with relatively different air-conditioning load trends By arranging the air volume adjustment device in the space, it is possible to prevent the arrangement of an air volume adjustment device with a low energy-saving effect.

The air volume adjustment device arrangement candidate determination method of the fifth aspect is any one of the first to fourth aspects, further considering constraint information on the arrangement of the air volume adjustment device in the physical duct piping system. , determine a candidate for a suitable arrangement of the air volume adjustment device.

In this layout candidate determination method, since the restriction information of the placement of the air volume adjustment device in the physical duct piping system is further taken into account, the air volume Candidates for suitable placement of adjustment devices can be determined.

The sixth aspect of the air volume adjustment device arrangement candidate determination method is any one of the first to fifth aspects, wherein a candidate with a small total running cost and initial cost when the air volume adjustment device is installed is selected. Two or more are extracted, and candidates for suitable placement of the air volume adjustment device are determined.

In this placement candidate determination method, candidates for the preferred placement of the air volume adjustment device are determined from among the candidates with the lowest total running cost and initial cost when the air volume adjustment device is installed. It can minimize the life cycle cost combined with the cost.

The arrangement candidate determination method for the air volume adjustment device of the seventh aspect is the method of the third aspect, wherein the space information including the usage time, purpose, volume, direction, or floor plan of each air-conditioned space is determined. Decide the air conditioning load ratio.

In this layout candidate determination method, by determining the air-conditioning load ratio using the space information of each air-conditioned space, it is possible to appropriately determine the air-conditioning load ratio for each air-conditioned space.

The air volume adjustment device placement candidate determination method of the eighth aspect is the method of the third aspect, wherein the power consumption of the equipment related to air conditioning of the entire building at each time is calculated as the air conditioning load ratio of each air conditioning target space. By dividing proportionally, the tendency of the air conditioning load is obtained.

In this layout candidate determination method, the power consumption of equipment related to air-conditioning in the entire building at each time is proportionally divided by the air-conditioning load ratio of each air-conditioning target space. can be obtained with high accuracy.

The air volume adjustment device arrangement candidate determination method of the ninth aspect is the method of the eighth aspect, wherein the power consumption of the equipment related to the air conditioning of the entire building at each time is calculated as the equipment related to the air conditioning installed in the building determined from actual measurement data.

In this layout candidate determination method, by using data obtained from actually used air conditioning equipment, it is possible to accurately determine the power consumption of the air conditioning equipment for the entire building.

The air volume adjustment device placement candidate determination method of the tenth aspect is the method of the third aspect, wherein the ratio of the air conditioning load, the air supply air volume to each air conditioning target space, and the operation data of the air conditioning system including the air supply temperature Determine from

In this layout candidate determination method, the air-conditioning load ratio can be determined with high accuracy by using the operation data of the air-conditioning system in the existing building.

The conditioned air supply system of the eleventh aspect includes an air volume adjustment device, a duct piping system, and an arrangement position determination device. The air volume adjustment device sends conditioned air to a plurality of air-conditioned spaces. The arrangement position determination device determines the position where the air volume adjustment device is arranged. The placement position determination device determines a candidate for the preferred placement of the air volume adjustment device in the duct piping system based on the tendency of the air conditioning load, which is the degree of increase or decrease of the air conditioning load, in each of the plurality of air conditioned spaces. The air volume adjusting device is arranged at the candidate position determined by the arrangement position determining device, and sends conditioned air to each air-conditioned space.

In this conditioned air supply system, the air volume adjustment device can be arranged at a suitable position in the duct piping system to supply conditioned air to each air-conditioned space.

The conditioned air supply system of the twelfth aspect is the system of the eleventh aspect, wherein the placement position determination device is based on the tendency of the air conditioning load, which is the degree of increase or decrease of the air conditioning load for each time zone, in each of the plurality of air conditioned spaces. to determine a candidate for a suitable arrangement of the air volume adjustment device in the duct piping system.

In this conditioned air supply system, by using the air-conditioning load trend of each air-conditioned space for each time period, even if the air-conditioning load trend of each air-conditioned space changes depending on the time period, the air volume adjustment device can be used. It can be placed at any suitable location in the duct plumbing system.

The conditioned air supply system of the thirteenth aspect is the system of the eleventh aspect or the twelfth aspect, wherein the arrangement position determination device adjusts the air volume for each of the duct pipes extending to the plurality of air-conditioned spaces with different air conditioning load tendencies. Candidates for suitable placement of the air volume adjustment devices are determined so that the devices are placed.

In this conditioned air supply system, no air volume control devices are installed in locations with similar air conditioning load trends, but air volume control devices are installed in duct pipes extending to air-conditioned spaces with relatively different air conditioning load trends. By doing so, it is possible to eliminate the air volume adjustment device having a low energy saving effect.

The conditioned air supply system of the fourteenth aspect is the system of the eleventh to thirteenth aspects, wherein the arrangement position determination device further considers the constraint information of the arrangement of the air volume adjustment device in the physical duct piping system, Candidates for suitable placement of the air volume adjustment device are determined.

In this conditioned air supply system, a location where the air volume adjustment device can actually be installed on the duct piping system can be used as a candidate for suitable placement of the air volume adjustment device.

It is a simple vertical cross-sectional view of a building in which duct piping is installed. It is a functional block diagram of a conditioned air supply system. 1 is a schematic diagram of a conditioned air supply system; FIG. It is a flow chart of a conditioned air supply system. FIG. 4 is a diagram showing an example of the ratio of the air conditioning power consumption of the entire building and the air conditioning load of each room. FIG. 4 is a diagram showing an example of arrangement of air volume adjustment devices in a duct piping system; 4 is a flowchart of a method for determining placement candidates for air volume adjustment devices. FIG. 5 is a diagram showing an example of correlation of rate of change of air conditioning load trends. FIG. 4 is a diagram showing an example of arrangement of air volume adjustment devices in a duct piping system; FIG. 4 is a diagram showing an example of arrangement of air volume adjustment devices in a duct piping system; FIG. 4 is a diagram showing an example of arrangement of air volume adjustment devices in a duct piping system; FIG. 4 is a diagram showing an example of arrangement of air volume adjustment devices in a duct piping system;

<First Embodiment>
(1) Overview of air-conditioned air supply system A VAV (variable air volume) air-conditioning system is used as one of the air-conditioned air supply systems that individually air-condition a plurality of spaces. A VAV air conditioning system is configured to supply air conditioned by an air conditioning unit to a plurality of air conditioned spaces through a plurality of sub ducts branched from a main duct connected to an air outlet of the air conditioning unit. Each sub-duct is provided with an air volume adjustment device, and the volume of air supplied to each air-conditioned space is adjusted. Further, the air conditioning unit is provided with a blower for sending conditioned air to a plurality of air conditioned spaces, and its capacity is controlled.

(2) Configuration of air-conditioned air supply system (2-1) Installation location of air volume adjustment device The air-conditioned air supply system 1 of the present embodiment, as shown in FIGS. This is an air conditioning system provided to perform individual air conditioning for each room. A building 80 is an example of a building in which the duct pipes 3 and 4 are installed, as shown in FIG. The conditioned air supply system 1 mainly includes an air conditioning unit 2, duct pipes 3 and 4, an air volume adjustment device A, and an arrangement position determination device 100, as shown in FIG.

The air volume adjustment device A is arranged at a candidate position on the duct piping 4 determined by the arrangement position determination device 100 . The air-conditioning unit 2 adjusts the air volume of the air-conditioned air with the air-volume adjusting device A, and sends the air to each space to be air-conditioned.

The air volume adjustment device A of the conditioned air supply system 1 of this embodiment is a VAV (Variable Air Volume Control Device). As shown in FIG. 1, the air volume adjusting device A is arranged in the duct pipes 4a to 4i in the space above the ceiling of each floor of the building 80. As shown in FIG. The air volume adjusting devices A13 to A15, A23 to 25, and A33 to A35 have opening variable air conditioning dampers 141a to 141i, respectively.

A building 80 has air-conditioned spaces (rooms) 101 to 106 on the first floor (rooms 101, 102, and 106 are omitted in FIGS. 1 and 3). An air volume adjustment device A13 is arranged in the duct piping 4a connected to the room 103 on the first floor of the building 80. As shown in FIG. An air volume adjustment device A14 is arranged in the duct piping 4b connected to the room 104 on the first floor of the building 80. As shown in FIG. An air volume adjustment device A15 is arranged in the duct piping 4c connected to the room 105 on the first floor of the building 80. FIG.

The building 80 also has air-conditioned spaces (rooms) 201 to 206 on the second floor (rooms 201, 202, and 206 are omitted in FIGS. 1 and 3). An air volume adjustment device A23 is arranged in the duct pipe 4d connected to the room 203 on the second floor of the building 80. As shown in FIG. An air volume adjustment device A24 is arranged in the duct pipe 4e connected to the room 204 on the second floor of the building 80. As shown in FIG. An air volume adjustment device A25 is arranged in the duct piping 4f connected to the room 205 on the second floor of the building 80. FIG.

The building 80 also has air-conditioned spaces (rooms) 301 to 306 on the third floor (rooms 301, 302, and 306 are omitted in FIGS. 1 and 3). An air volume adjustment device A33 is arranged in the duct pipe 4g connected to the room 303 on the third floor of the building 80. FIG. An air volume adjustment device A34 is arranged in the duct pipe 4h connected to the room 304 on the third floor of the building 80. As shown in FIG. An air volume adjustment device A35 is arranged in the duct piping 4i connected to the room 305 on the third floor of the building 80. FIG.

(2-2) Placement Position Determining Apparatus The placement position determining apparatus 100 is implemented by a computer. The arrangement position determination device 100 of the conditioned air supply system 1 of the present embodiment is a device for implementing the arrangement candidate determination method of the air volume adjustment device A described in the claims.

As shown in FIG. 2, the arrangement position determination device 100 includes an information acquisition unit 10, a power consumption determination unit 20, an air conditioning load ratio determination unit 30, an air conditioning load trend calculation unit 40, and a placement candidate determination unit 50. , provided.
The computer 100 includes a control arithmetic device and a storage device. A processor, such as a CPU or a GPU, can be used for the control computing unit. The control arithmetic device reads a program stored in the storage device and performs predetermined image processing and arithmetic processing according to the program. Furthermore, the control arithmetic device can write the arithmetic result to the storage device and read the information stored in the storage device according to the program. The information acquisition unit 10, power consumption determination unit 20, air conditioning load ratio determination unit 30, air conditioning load trend calculation unit 40, and placement candidate determination unit 50 shown in FIG. It is a functional block. These functional blocks appear when the control arithmetic unit executes the program.

(2-2-1) Information Acquisition Unit The information acquisition unit 10 acquires constraint information on the placement of the air volume adjustment device A in the physical duct piping 3 and 4 systems of the building 80 . The constraint information on the placement of the air volume adjustment device A in the physical duct pipes 3 and 4 of the building 80 includes the placement information 11 of the duct pipes 3 and 4 of the building 80 . The information acquisition unit 10 acquires the arrangement information 11 of the duct pipes 3 and 4 from the external design drawing database 60 .

The information acquisition unit 10 also acquires space information 12 of each of the air-conditioned spaces 101-106. The space information 12 of each of the air-conditioned spaces 101 to 106 includes usage time, usage, volume, direction, or floor plan. The information acquisition unit 10 acquires space information regarding the use, volume, orientation, or floor plan of each of the air-conditioned spaces 101 to 106 from the external design drawing database 60 . The information acquisition unit 10 also acquires the space information 12 regarding the usage time of each of the air-conditioned spaces 101 to 106 by importing data from the air-conditioning unit 2 .

(2-2-2) Power Consumption Determining Unit The power consumption determining unit 20 calculates the power consumption of the air conditioning unit 2, which is a device related to the air conditioning of the entire building 80, at each time. Determined from actual measurement data of Unit 2.

(2-2-3) Air-conditioning load ratio determination unit The air-conditioning load ratio determination unit 30 determines each air-conditioned space from the space information 12 including usage time, purpose, volume, direction, or floor plan of each air-conditioned space 101-106. Determine the air conditioning load ratio of 101-106.

(2-2-4) Air Conditioning Load Trend Calculation Section The air conditioning load trend calculation section 40 calculates the trend of the air conditioning load by calculating the power consumption of the air conditioning unit 2, which is a device related to the air conditioning of the entire building 80, and the air conditioning load of the entire building 80. and the air-conditioning load ratio of each of the air-conditioned spaces 101 to 106 occupying the space.

(2-2-5) Arrangement Candidate Determination Unit The arrangement candidate determination unit 50 determines whether the air-conditioned spaces 101 to 106 are air-conditioned based on the tendency of the air-conditioning load, which is the degree of increase or decrease in the air-conditioning load for each time zone. Candidates for suitable placement of the air volume adjustment device A in the duct piping 3, 4 systems for sending the air to the air-conditioned spaces 101 to 106 are determined.

(2-3) Air Conditioning Unit As shown in FIG. 3, the unit casing 121 of the air conditioning unit 2 is formed with an air inlet 121a for sucking outdoor or indoor air and an air outlet 121b for discharging conditioned air. ing. The air inlet 121 a is connected to the intake duct 5 and the air outlet 121 b is connected to the main duct 3 .

The blower 122 is provided inside the unit casing 121, and is a blower that blows air by sucking air from the air inlet 121a and discharging air from the air outlet 121b. The blower 122 mainly has an impeller (not shown) made up of a multi-blade impeller or the like, and this impeller is rotationally driven by a motor 124 . The motor 124 is a variable speed motor. Therefore, the blower 122 constitutes a rotation speed variable blower that can perform capacity control by changing the rotation speed of the motor 124 .

The heat exchanger 123 is provided inside the unit casing 121 and is a heat exchanger that adjusts the temperature and humidity of the air sucked into the unit casing 121 by the blowing operation of the blower 122 .

The air conditioning unit 2 is provided with a control section 125 for controlling the operation of devices such as the blower 122 . The control unit 125 has an electric circuit, a microcomputer, a memory, and the like for operating devices such as the blower 22 . The air-conditioning unit 2 has space information 12 regarding the usage time of each air-conditioned space 101-106.

(2-4) Duct Piping System The duct piping system has a main duct 3 and sub-ducts 4 (4a to 4i).

The main duct 3 is a duct that is provided in the ceiling space of the building or the like and is connected to the air outlet of the air conditioning unit 2 .

As shown in FIG. 1, the sub-ducts 4a-4i are provided in the space above the ceiling of the building 80, etc., and are branched from the main duct 3 into the air-conditioned spaces 103-105, 203-205, and 303-305. is.

(2-5) Air Volume Adjusting Device As shown in FIG. 3, on the first floor of the building 80, the sub ducts 4a to 4c are provided with air volume adjusting devices A13 to A15. The air volume adjusting devices A13 to A15 have air conditioning dampers 141a to 141c with variable openings, respectively. The amount of air passing through the air conditioning dampers 141a-141c and the sub-ducts 4a-4c, that is, the amount of air supplied to the air-conditioned spaces 103-105 can be changed. The second and third floors of building 80 have the same configuration as the first floor of building 80 .

(3) Overall Operation of Air Conditioned Air Supply System A flowchart of the air conditioned air supply system 1 is shown in FIG.

First, the power consumption of the air conditioning unit 2, which is equipment related to air conditioning of the entire building 80, is measured (step S1). Also, the ratio of the air-conditioning load of the air-conditioned spaces (rooms) 101 to 106 to the entire building 80 is obtained (step S2).

FIG. 5 shows an example of the air-conditioning power consumption [kWh] of the entire building 80 and the air-conditioning load ratio [%] of the rooms 101 to 106 at each time. When the time is 9:00 in FIG. 5, the power consumption [kWh] for air conditioning of the whole building and the air conditioning load ratio [%] of each room from 9:00 to 10:00 are shown. For example, from 9:00 am to 10:00 am, the air conditioning power consumption of the entire building is 1000 kWh, and the air conditioning load ratios of rooms 101 to 106 are 15%, 23%, 12%, 5%, 12%, and 33%, respectively. %.

Next, the tendency of the air-conditioning load, which is the degree of increase or decrease of the air-conditioning load for each time period, is obtained for the rooms 101 to 106, which are the spaces to be air-conditioned (step S3). As shown in FIG. 5, for example, the air conditioning power consumption of the entire building from 9:00 am to 10:00 am is 1000 kWh, and the air conditioning load ratio of the room 101 is 15%. The air conditioning load trend for 101 is 150 kWh. In addition, the air conditioning power consumption of the entire building from 10:00 to 11:00 am is 1000 kWh, and the air conditioning load ratio of the room 101 is 10%. 100 kWh.

Therefore, in the room 101, the air conditioning load tends to decrease from 150 kWh to 100 kWh between 9:00 am and 11:00 am.

In addition, the air conditioning power consumption of the entire building from 9:00 am to 10:00 am is 1000 kWh, and the air conditioning load ratio of the room 106 is 33%. 330 kWh. In addition, since the air conditioning power consumption of the entire building between 10:00 and 11:00 am is 1000 kWh, and the air conditioning load ratio of the room 106 is 60%, the tendency of the air conditioning load of the room 106 between 10:00 and 11:00 am is 600 kWh.

Therefore, in the room 106, the air conditioning load tends to increase from 330 kWh to 600 kWh between 9:00 am and 11:00 am.

Next, candidates for suitable arrangement of the air volume control device A in the duct pipes 3 and 4 are determined (step S4). FIG. 6 shows an example of the arrangement of the air volume control device A in the duct pipes 3 and 4. As shown in FIG. As shown in FIG. 6, air volume adjusting devices A11 to A16 are arranged on sub-ducts 4a, 4b, 4c, 4j, 4k, and 4l branched from the main duct 3 to rooms 101 to 106, respectively.

After the placement candidates of the air volume adjustment device A are determined in steps S1 to S4, conditioned air is sent to each of the rooms 101 to 106 from the air volume adjustment device A arranged at the candidate position (step S5).

(4) Features (4-1)
The arrangement candidate determination method for the air volume adjustment device A according to the present embodiment is based on the tendency of the air conditioning load, which is the degree of increase or decrease of the air conditioning load for each time period, in each of the plurality of air conditioned spaces 101 to 106. to each air-conditioned space 101-106.

In this placement candidate determination method for the air volume adjustment device A, a suitable placement candidate for the air volume adjustment device A is determined based on the tendency of the air conditioning loads of the air-conditioned spaces 101 to 106, thereby disposing an air volume adjustment device with a low energy-saving effect. Therefore, the number of air volume adjustment devices to be installed can be reduced, and the number of man-hours for installing the air volume adjustment devices can be reduced. This can reduce costs.

Conventionally, calculations for estimating the energy-saving effect of installing an air volume adjustment device take a lot of man-hours, so there is no custom of calculating the installation effect of an air volume adjustment device. In the present embodiment, it is possible to easily optimize the arrangement of the air volume adjustment devices so as to obtain an energy saving effect.

In this embodiment, instead of selecting the optimum capacity of an air conditioner such as an indoor unit or an outdoor unit, candidates for the suitable arrangement of the air volume adjustment device are determined to optimally design the arrangement of the air volume adjustment device. Unlike selecting the capacity of an air conditioner, there is an advantage that installation of an air volume adjustment device does not result in insufficient air volume due to the characteristics of the air volume adjustment device.

In addition, in this method of determining candidates for placement of the air volume adjustment device A, the optimal design of the placement of the air volume adjustment device can be performed with labor saving while ensuring the quality of the design. In addition, the type and arrangement of the branch ducts can be optimally designed based on the suitable arrangement of the air volume adjustment device.

In addition, in this method of determining a candidate for air-conditioning device A, by using the air-conditioning load trends of the air-conditioned spaces 101 to 106 for each time zone, the air-conditioning load trends of the air-conditioned spaces 101 to 106 depending on the time zone Even if , the air volume adjustment device A can be placed at a suitable position in the duct piping system.

(4-2)
In the method for determining a candidate layout for the air volume adjustment device A according to the present embodiment, the tendency of the air conditioning load is determined based on the power consumption of the air conditioning unit 2, which is a device related to air conditioning of the entire building 80, and the air conditioning target space 101 occupying the entire building 80. ∼ 106 air conditioning load ratio.

In this placement candidate determination method of the air volume adjustment device A, by using the power consumption of the air conditioning unit 2 and the ratio of the air conditioning load of each room 101 to 106 to the entire building 80, the power consumption of the air conditioning unit 2 depending on the time period Even if the amount changes, the trend of the air conditioning load in each of the rooms 101 to 106 can be obtained with high accuracy.

(4-3)
In the arrangement candidate determination method of the air volume adjustment device A according to the present embodiment, the space information 12 including the usage time, purpose, volume, direction, or floor plan of each air-conditioned space 101-106 is used to determine the air-conditioned space 101-106. Decide the air conditioning load ratio.

In this method of determining a candidate layout for the air volume adjustment device A, by determining the air conditioning load ratio using the space information 12, it is possible to appropriately determine the air conditioning load ratio for each of the rooms 101-106.

(4-4)
In the arrangement candidate determination method for the air volume adjustment device A according to the present embodiment, the power consumption of the air conditioning unit 2, which is a device related to the air conditioning of the entire building 80 at each time, is determined from the actual measurement data of the air conditioning unit 2.

In this method of determining a candidate arrangement for the air volume adjustment device A, by using data obtained from the air conditioning unit 2 that is actually used, the power consumption of the air conditioning unit 2, which is a device related to the air conditioning of the entire building 80, is determined with high accuracy. can do.

(4-5)
The conditioned air supply system 1 according to the present embodiment includes an air volume adjustment device A, duct piping systems 3 and 4, and an arrangement position determination device 100. As shown in FIG. The air volume adjustment device A sends conditioned air to a plurality of air-conditioned spaces 101-106. The arrangement position determination device 100 determines the position where the air volume adjustment device A is arranged. The arrangement position determination device 100 determines the air volume adjustment device A for the duct pipes 3 and 4 based on the tendency of the air conditioning load, which is the degree of increase or decrease of the air conditioning load for each time period, in each of the multiple air conditioned spaces 100 to 106. Determine placement candidates. The air volume adjusting device A is arranged at the candidate position determined by the arrangement position determining device 100, and sends conditioned air to each of the air-conditioned spaces 101-106.

In this conditioned air supply system 1, the air volume adjustment device A can be arranged at a suitable position in the duct pipes 3 and 4 to supply conditioned air to each of the air-conditioned spaces 101-106. In addition, in this conditioned air supply system 1, the tendency of the air conditioning load is defined as the increase or decrease of the air conditioning load for each of the plurality of space objects by time period. can do.

(5) Modification (5-1) Modification 1A
In this embodiment, the placement candidate determination unit 50 of the placement candidate determination device 100 is air-conditioned based on the tendency of the air-conditioning load, which is the degree of increase or decrease of the air-conditioning load for each time period, in each of the plurality of air-conditioned spaces 101 to 106. Although the case of determining a candidate for the suitable arrangement of the air volume adjustment device A in the duct piping 3, 4 system for sending the air to the air-conditioned spaces 101 to 106 has been described, the present invention is not limited to this.

The layout candidate determination unit 50 of the layout candidate determination device 100 analyzes the load tendency, which is the degree of increase or decrease of the air conditioning load, in each of the plurality of air-conditioned spaces 101 to 106, for example, for each busy season or event, and analyzes the air volume adjustment device. Candidates for suitable placement of A may be determined.

(5-2) Modification 1B
In this embodiment, the placement candidate determination unit 50 of the placement candidate determination device 100 is air-conditioned based on the tendency of the air-conditioning load, which is the degree of increase or decrease of the air-conditioning load for each time period, in each of the plurality of air-conditioned spaces 101 to 106. Although the case of determining a candidate for the suitable arrangement of the air volume adjustment device A in the duct piping 3, 4 system for sending the air to the air-conditioned spaces 101 to 106 has been described, the present invention is not limited to this.

The layout candidate determination unit 50 of the layout candidate determination device 100 of the air-conditioned air supply system 1 arranges the air volume adjustment device A in each of the duct pipes 4 extending to the plurality of air-conditioned spaces 101 to 106 having different air conditioning load tendencies. In this manner, candidates for suitable arrangement of the air volume adjustment device A may be determined.

FIG. 7 shows a flowchart of a method for determining a candidate arrangement of the air volume adjustment device according to Modification 1B. First, the power consumption of the equipment 2 related to the air conditioning of the entire building 80 is measured (step S11). Next, the air conditioning load ratio of each of the rooms 101 to 106 to the entire building 80 is obtained (step S12). The power consumption of the equipment 2 related to the air conditioning of the entire building 80 obtained in step S11 and the tendency of the air conditioning load of each hour of each room 101 to 106 shown in the entire building 80 obtained in step S12 are obtained (step S13). Using the air-conditioning load tendency obtained in step S13, the rate of change in the air-conditioning load tendency for each of the rooms 101 to 106 for each hour is calculated (step S14). Regarding the rate of change in the air conditioning load for each hour of each room 101 to 106 obtained in step S14, the correlation coefficient for each of the rooms 101 to 106 is calculated using the following equation 1 (step S15).

A plurality of correlation coefficient thresholds are set, and the correlation coefficients calculated in step S15 are compared with the thresholds (step S16). Here, if the correlation coefficient is smaller than the threshold, it is determined that the tendency of the air conditioning load is relatively different.

Locations determined to have relatively different air-conditioning load tendencies are determined as candidates for suitable placement of the air volume control devices A in the duct piping systems 3 and 4 (step S17).

After determining the candidates for the suitable layout of the air volume adjustment device A, the designer may determine the layout of the air volume adjustment device A from among the candidates. Further, in order to further narrow down the candidates for the suitable arrangement of the air volume adjustment device A and determine the order of the installation pattern of the air volume adjustment device A in which energy saving performance can be obtained, the calculation of the life cycle cost when the air volume adjustment device A is set is performed. You can do it.

FIG. 8 shows an example of the rate of change in air-conditioning load trends for the rooms 101-106.

When the threshold of the correlation coefficient is 0.8, the correlation coefficient between the rooms 101 and 102 is 0.94, which is larger than the threshold. On the other hand, room 101 has correlation coefficients of 0.62, 0.51, 0.54, and 0.49 with rooms 103, 104, 105, and 106, respectively, which are smaller than the threshold of 0.8. Therefore, it is determined that the tendency of the air conditioning loads of the room 101 and the rooms 103, 104, 105, and 106 are relatively different.

FIG. 9A shows an example of arrangement of the air volume adjustment device A when the threshold value of the correlation coefficient is set to 0.8. As shown in FIG. 9A, an air volume adjustment device A111 is arranged in 4 m of duct pipes before branching into secondary ducts leading to rooms 101 and 102 . Further, air volume adjusting devices A112 to A115 are arranged in each of the sub-ducts 4n, 4O, 4p and 4l connected to the rooms 103, 104, 105 and 106, respectively.

Further, when the correlation coefficient threshold is 0.6, room 104 has correlation coefficients of 0.51, 0.59, 0.35 and 0.16 with rooms 101, 103, 105 and 106, respectively. , less than the threshold of 0.6. Therefore, it is determined that the tendencies of the air conditioning loads of the room 104 and the rooms 101, 103, 105, and 106 are relatively different. Room 105 has correlation coefficients of 0.54, 0.55, 0.53, 0.35, and 0.16 with respect to rooms 101, 102, 103, 104, and 106, respectively. small. Therefore, it is determined that the tendencies of the air conditioning loads of the room 105 and the rooms 101, 102, 103, 104, and 106 are relatively different. Room 106 has correlations with rooms 101, 102, 103, 104, and 105 of 0.49, 0.48, 0.21, 0.16, and 0.16, respectively, which are smaller than the threshold of 0.6. . Therefore, it is determined that the tendencies of the air conditioning loads of the room 106 and the rooms 101, 102, 103, 104, and 105 are relatively different.

FIG. 9B shows an example of the arrangement of the air volume adjustment device A when the threshold value of the correlation coefficient is set to 0.6. As shown in FIG. 9B, an air volume adjustment device A116 is arranged in the duct piping 4q before branching to the sub-ducts leading to the rooms 101-103. In addition, air volume adjusters A113 to A115 are arranged in the sub-ducts 4O, 4p, 4l connected to the rooms 104, 105, 106, respectively.

When the correlation threshold is 0.3, room 106 has correlation coefficients of 0.21, 0.16, and 0.16 with rooms 103, 104, and 105, respectively. small. Therefore, it is determined that the tendency of the air-conditioning loads of the room 106 and the rooms 103, 104, and 105 are relatively different.

FIG. 9C shows an example of the arrangement of the air volume adjustment device A when the threshold value of the correlation coefficient is set to 0.3. As shown in FIG. 9C, an air volume adjustment device A117 is arranged in the duct piping 4r before branching into the sub-ducts leading to the rooms 101-105. In addition, an air volume adjustment device A115 is arranged in the sub-duct 4l connected to the room 106. As shown in FIG.

In the air volume adjustment device placement candidate determination method of Modification 1B, the air volume adjustment device A is not arranged in the duct piping extending to the air-conditioned spaces with similar air conditioning load tendencies, but the air conditioning load tendencies are relatively different. By arranging the air volume adjustment device A in the duct piping extending to the air-conditioned space, the air volume adjustment device A having a low energy-saving effect can be reduced.

A plurality of air-conditioned spaces in which the air-conditioning load fluctuates in the same manner at each time is assumed to have similar air-conditioning load trends. When the tendencies of the air-conditioning loads of a plurality of air-conditioned spaces are similar, the air-conditioned air is supplied from the same duct piping without passing through the air volume adjustment device A.

By arranging the air volume adjustment device A in the duct piping extending to the air-conditioned space where the air conditioning load tendency is relatively different using the arrangement method of the air volume adjustment device of the modification 1B, the air volume adjustment device A with low energy saving effect can be reduced to provide conditioned air.

(5-3) Modification 1C
In this embodiment, the air-conditioning load trend calculator 40 of the placement candidate determination device 100 calculates the air-conditioning load trend based on the power consumption of the air-conditioning unit 2, which is a device related to the air-conditioning of the entire building 80, and the air-conditioning load of the entire building 80. Although the case where it is obtained from the air-conditioning load ratio of each of the air-conditioned spaces 101 to 106 occupied has been described, the present invention is not limited to this.

The air-conditioning load trend calculation unit 40 of the placement candidate determination device 100 calculates the power consumption of the air-conditioning unit 2, which is the equipment related to the air-conditioning of the entire building 80 at each time, as a ratio of the air-conditioning loads of the air-conditioned spaces 101 to 106. The tendency of the air conditioning load may be obtained by dividing proportionally.

In the arrangement candidate determination method of the air volume adjustment device of the modified example 1C, the power consumption of the air conditioning unit 2 at each time is proportionally divided by the air conditioning load ratio of each room 101 to 106, so that each air conditioned space at each time The trend of the air conditioning loads of 101 to 106 can be obtained with high accuracy.

(5-4) Modification 1D
In this embodiment, the placement candidate determination unit 50 of the placement candidate determination device 100 is air-conditioned based on the tendency of the air-conditioning load, which is the degree of increase or decrease of the air-conditioning load for each time period, in each of the plurality of air-conditioned spaces 101 to 106. Although the case of determining a candidate for the suitable arrangement of the air volume adjustment device A in the duct piping 3, 4 system for sending the air to the air-conditioned spaces 101 to 106 has been described, the present invention is not limited to this.

The placement candidate determination unit 50 of the placement candidate determination device 100 further considers the placement information 11 of the duct piping system, which is constraint information on the placement of the air volume adjustment device A in the physical duct piping 3 and 4, to determine the actual duct. Candidates for the suitable placement of the air volume adjustment device A may be determined so as to comply with the pipes 3 and 4.

In the air volume adjustment device placement candidate determination method of Modification 1D, it is possible to determine candidates for arranging the air volume adjustment device A from locations where the air volume adjustment device A can actually be arranged on the duct piping 3 and 4 systems. . In addition, using the air volume adjustment device placement candidate determination method of Modification 1D, the air volume adjustment device A is arranged in a place where the air volume adjustment device A can actually be installed on the duct pipes 3 and 4, and the conditioned air can be supplied.

Further, the arrangement information 11 of the duct piping system is not limited to information that completely conforms to the actual duct piping systems 3 and 4. FIG. When the arrangement of the duct pipes 3 and 4 can be changed from the current arrangement at low cost and the energy saving effect by changing the arrangement of the duct pipes 3 and 4 is large, when determining a candidate for the suitable arrangement of the air volume adjustment device, You may make it use the arrangement|positioning information of a duct piping system after a change.

For example, based on the drawing of the actual duct piping system, manually specify the parts that cannot be changed and the parts that can be changed. Information may be given.

(5-5) Modification 1E
In this embodiment, the placement candidate determination unit 50 of the placement candidate determination device 100 is air-conditioned based on the tendency of the air-conditioning load, which is the degree of increase or decrease of the air-conditioning load for each time period, in each of the plurality of air-conditioned spaces 101 to 106. Although the case of determining a candidate for the suitable arrangement of the air volume adjustment device A in the duct piping 3, 4 system for sending the air to the air-conditioned spaces 101 to 106 has been described, the present invention is not limited to this.

The layout candidate determination unit 50 of the layout candidate determination device 100 extracts two or more candidates with a small total running cost and initial cost when the air volume adjustment device A is installed, and determines the candidate for the suitable layout of the air volume adjustment device A. You may make it The initial cost includes the unit price of the air volume control device A and construction costs.

In the method of determining the placement candidate for the air volume adjustment device of Modification 1E, the life cycle cost, which is the sum of the running cost and the initial cost, can be minimized.

(5-6) Modification 1F
In the present embodiment, a case has been described in which the power consumption of the air conditioning unit 2, which is a device related to air conditioning of the entire building 80 at each time, is determined from the actual measurement data of the air conditioning unit 2 installed in the building 80, but the present invention is limited to this. is not.

It is also possible to acquire the power usage details of the entire building 80 and analyze and determine the power consumption of the equipment related to the air conditioning of the entire building 80 from the power usage details of the entire building 80 . The power consumption of the equipment related to the air conditioning of the entire building 80 may be estimated from the air conditioning load of the entire building 80, environmental information such as seasonal information, or the type of air conditioning equipment.

(5-7) Modification 1G
In this embodiment, the air-conditioning load ratio determination unit 30 of the layout candidate determination device 100 uses the space information 12 including the utilization time, purpose, volume, direction, or floor plan of each air-conditioned space 101 to Although the case of determining the air conditioning load ratio of 106 to 106 has been described, the present invention is not limited to this.

The air-conditioning load ratio determination unit 30 of the placement candidate determination device 100 determines the ratio of the air-conditioning loads from the operation data of the air-conditioning system, including the amount of air supplied to each of the air-conditioned spaces 101 to 106 and the temperature of the supplied air. good too.

In the method of determining candidate placement of the air volume adjustment device of Modification 1G, the air-conditioning load ratio can be accurately determined by conducting a field survey and acquiring operation data of the air-conditioning system in the existing building.

(5-8) Modification 1H
In the present embodiment, the case where the air volume adjustment devices A11 to A16 are respectively arranged on the sub ducts 4a, 4b, 4c, 4j, 4k, and 4l connected to the rooms 101 to 106, which are the spaces to be air-conditioned, has been described, but the present invention is limited to this. not a thing

FIG. 9 shows another example of the arrangement of the air volume control device A in the duct pipes 3 and 4. As shown in FIG. As shown in FIG. 9, an air volume adjustment device A118 is arranged in the duct piping 4s before branching to the sub-ducts 4k and 4j leading to the rooms 101 and 102. As shown in FIG. In addition, an air volume adjustment device A119 is arranged in the duct piping 4t before branching to the secondary ducts 4a, 4b, and 4c leading to the rooms 103, 104, and 105. FIG. In addition, an air volume adjustment device A120 is arranged in the sub-duct 4l connected to the room 106. As shown in FIG.

In this way, when the air volume adjustment device A118 is arranged in the duct piping 4s before branching to the secondary ducts 4k and 4j leading to the rooms 101 and 102, the duct piping 4j and 4k branched from the duct piping 4s are connected to the rooms 101 and 102, respectively. Since there is no need to separately install the air volume adjustment device A at the location connected to 102, the cost can be reduced.

(5-9) Modification 1I
In the present embodiment, the case where the air volume adjustment device A is a VAV (variable air volume control device) has been described, but it may be a CAV (constant air volume control device), a fan unit that adjusts the air volume with a fan, or the like.

(5-10) Modification 1J
Although embodiments of the present disclosure have been described above, it will be appreciated that various changes in form and detail may be made without departing from the spirit and scope of the present disclosure as set forth in the appended claims. .

1 Air conditioning air supply system 2 Air conditioning unit 3 Main duct (duct piping)
4, 4a to 4t sub duct (duct piping)
141a-141l Air-conditioning damper 100 Placement candidate determination device (computer)
10 Information acquisition unit 11 Layout information of duct piping system (restriction information on layout of air volume adjustment device)
12 Spatial information 20 Power consumption determining unit 30 Air conditioning load ratio determining unit 40 Air conditioning load trend calculating unit 50 Layout candidate determining unit 60 Design drawing database 80 Building A (A11 to A16, A23 to A25, A33 to A35, A111 to A120) air volume regulator

Japanese Patent No. 4130788

Claims (14)

Air volume adjustment in the duct piping (3, 4) system that sends the air-conditioned air to each air-conditioned space based on the tendency of the air-conditioning load, which is the degree of increase or decrease in the air-conditioning load, in each of the multiple air-conditioned spaces (101 to 106). Determining candidates for suitable placement of the device (A);
A placement candidate determination method for an air volume adjustment device. The tendency of the air conditioning load is the degree of increase or decrease of the air conditioning load for each time zone in each of the multiple air-conditioned spaces.
2. The method for determining an arrangement candidate for an air volume adjustment device according to claim 1. The tendency of the air-conditioning load is obtained from the power consumption of the equipment (2) related to the air-conditioning of the entire building (80) and the ratio of the air-conditioning load of each air-conditioned space to the air-conditioning load of the entire building;
3. The method for determining an arrangement candidate for an air volume adjustment device according to claim 1 or 2. Determining a candidate for a suitable arrangement of the air volume adjustment device such that the air volume adjustment device is arranged in each of the duct pipes extending to a plurality of air-conditioned spaces with different air conditioning load tendencies;
4. The method for determining an arrangement candidate for an air volume adjustment device according to any one of claims 1 to 3. Further considering constraint information (11) of the arrangement of the air volume adjustment device in the physical duct piping system, determining a candidate for a suitable arrangement of the air volume adjustment device;
5. The method for determining an arrangement candidate for an air volume adjustment device according to any one of claims 1 to 4. Extracting two or more candidates with a small sum of running cost and initial cost when the air volume adjustment device is installed, and determining a candidate for suitable placement of the air volume adjustment device;
6. The method for determining an arrangement candidate for an air volume adjusting device according to any one of claims 1 to 5. Determine the air conditioning load ratio of each air conditioned space from space information (12) including usage time, usage, volume, direction, or floor plan of each air conditioned space,
4. The method for determining an arrangement candidate for the air volume adjustment device according to claim 3. By proportionally dividing the power consumption of the equipment related to air conditioning of the entire building at each time by the ratio of the air conditioning load of each space to be air conditioned, the tendency of the air conditioning load is obtained.
4. The method for determining an arrangement candidate for the air volume adjustment device according to claim 3. Determine the power consumption of equipment related to air conditioning of the entire building at each time from the measured data of equipment related to air conditioning installed in the building;
9. The method for determining an arrangement candidate for the air volume adjustment device according to claim 8. Determining the air conditioning load ratio from the operation data of the air conditioning system including the air supply air volume and the air supply temperature to each air conditioned space.
4. The method for determining an arrangement candidate for the air volume adjustment device according to claim 3. an air volume adjustment device for sending air-conditioned air to a plurality of air-conditioned spaces;
a duct piping system;
an arrangement position determination device (100) for determining a position where the air volume adjustment device is arranged;
with
The arrangement position determination device determines a candidate for a suitable arrangement of the air volume adjustment device in the duct piping system based on the tendency of the air conditioning load, which is the degree of increase or decrease of the air conditioning load, in each of the plurality of air conditioned spaces,
The air volume adjustment device is arranged at the candidate position determined by the arrangement position determination device, and sends conditioned air to each air-conditioned space.
A conditioned air supply system (1). The placement position determination device determines a candidate for a suitable placement of the air volume adjustment device in the duct piping system based on the tendency of the air conditioning load, which is the degree of increase or decrease of the air conditioning load for each time period, in each of the plurality of air conditioned spaces. do,
12. The conditioned air supply system of claim 11. The placement position determining device,
Determining a candidate for a suitable arrangement of the air volume adjustment device such that the air volume adjustment device is arranged in each of the duct pipes extending to a plurality of air-conditioned spaces with different air conditioning load tendencies;
A conditioned air supply system according to claim 11 or 12. The placement position determination device comprises:
Determining a candidate for a suitable placement of the air volume adjustment device by further considering constraint information on the placement of the air volume adjustment device in the physical duct piping system.
A conditioned air supply system according to claims 11 to 13.

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