KR102260663B1 - Apparatus and method for measuring shgc - Google Patents

Abstract

The present disclosure relates to an apparatus and method for measuring a solar gain coefficient, and an embodiment includes a measurement unit including an air conditioning guard, a calorimeter accommodated in the air conditioning guard, and an external chamber coupled to one surface of the air conditioning guard on which the object to be measured is installed; A driving unit connected to the measuring unit to move the measuring unit according to the incident direction of the light source, a data collecting unit that receives and collects data obtained from the measuring unit, and external solar radiation (Qsolar) and internal and a controller for measuring the amount of heat obtained (Qgain) and obtaining a solar gain coefficient based on the amount of external solar radiation and the amount of internal heat obtained, wherein the outer chamber has an opening corresponding to the area of the object to be measured on one surface coupled to the air conditioning guard. And, the control unit provides a solar gain coefficient measuring device for measuring the amount of perfusion heat used to measure the internal heat gain based on the temperature difference between the external chamber and the calorimeter.

Description

Apparatus and method for measuring solar gain coefficient {APPARATUS AND METHOD FOR MEASURING SHGC}

The present disclosure relates to an apparatus and method for measuring a solar gain coefficient, and more particularly, to an apparatus and method for measuring a solar gain coefficient capable of accurately measuring regardless of a light source or environment.

Measuring the amount of insolation through windows is an important factor in designing buildings including windows or in efficient energy management.

In order to represent this amount of insolation, the solar gain coefficient is used. Solar Heat Gain Coefficient (SHGC) is an index indicating the amount of insolation through windows and is calculated as the sum of the amount of solar radiation directly transmitted and the amount of solar radiation absorbed into the room after being absorbed by the glass.

Since the solar gain coefficient reflects the effect of the angle of incidence, it can be said to be an accurate index for solar gain and is widely used. The solar acquisition coefficient is expressed as a number from 0 to 1. A high solar acquisition coefficient value indicates a lot of solar gain through windows, and a low solar acquisition coefficient value means less solar gain.

Although various measuring devices and methods are used to measure the solar gain coefficient, there are several problems in making an accurate measurement.

First, in the case of an apparatus for measuring the solar acquisition coefficient using natural light, the change in the solar acquisition coefficient due to the change of the incident angle due to the change of the altitude and position of the sun is not taken into account.

In the case of a measuring device using an artificial light source, since the irradiation direction is the front of the measuring device, there is a problem in that it is different from the solar acquisition phenomenon occurring in an actual building. In addition, when an artificial light source is used, a difference occurs between the actual solar radiation acquisition and the measured value due to the difference in the spectrum according to the use of a metal halide lamp. Moreover, the thermal action of the radiant heat transmitted from the sun appears differently according to the difference in the spectrum of the infrared (750 nm or more) region.

On the other hand, various methods are also used in the prior art to measure the solar gain coefficient.

For example, there is a method of measuring the solar gain coefficient of plate glass by checking optical performance such as transmittance or reflectance with a spectrometer. However, this is applicable in the case of single-pane glass, and for two or more sheets of double-layer glass, there is a limit in obtaining an actual value because the performance derived for each single glass is calculated theoretically using a calculation formula or a simulation tool.

There is also a method of measuring the solar gain coefficient using a solar simulator. In this case, to measure the solar gain coefficient of the window, the amount of heat flowing into the heat flux meter is measured by irradiating the artificial light source in front of the specimen. However, there is a problem in that the measurement target is limited to a window set in which a glass and a frame are combined.

On the other hand, the method of measuring the solar gain coefficient of windows using natural light is also widely used. In this method, the amount of heat flowing into the calorimeter is measured by irradiating a natural light source from the front of the specimen. Measurement objects include multi-layer glass, windows, curtain walls, and the like.

However, in these conventional methods, consideration of the amount of heat lost by convection, conduction, etc. in the device is excluded, and there is a disadvantage in that there is an error in obtaining an accurate solar gain coefficient. As such, it has not been easy in the prior art to accurately measure the solar gain coefficient due to problems in the apparatus or method.

Therefore, including the incident angle and thermal characteristics of natural light incident on the windows and solar control devices installed in buildings, and a new indoor solar acquisition coefficient measuring device and method for calculating the solar gain that can be accurately applied to the energy consumption prediction I need this. In addition, there is a need for a more accurate measuring device and method of the solar gain coefficient reflecting the difference between the outside air and the inside air of the window.

The present disclosure provides an apparatus and method for measuring a solar gain coefficient that can obtain a more accurate solar gain coefficient by calculating the internal heat gain in which perfusion heat is reflected according to the difference between the external temperature and the internal temperature of an air conditioning guard in which windows and doors are installed is to provide

In one aspect, the present embodiments provide an air conditioning guard, a calorimeter accommodated in the air conditioning guard, and a measurement unit including an external chamber coupled to one surface of the air conditioning guard in which the object to be measured is installed, connected to the measurement unit, and the measurement unit is the incident of the light source A driving unit for moving according to the direction, a data collection unit that receives and collects data obtained from the measurement unit, and an external solar radiation amount (Qsolar) and internal heat gain (Qgain) are measured based on the data collected by the data collection unit, and the external and a control unit for obtaining a solar gain coefficient based on the amount of insolation and internal heat obtained, wherein the outer chamber has an opening corresponding to the area of the object to be measured on one surface coupled to the air conditioning guard, and the control unit is between the outer chamber and the calorimeter. It is possible to provide a solar gain coefficient measuring device for measuring the amount of perfusion heat used for measuring the internal heat gain based on the temperature difference.

The outer chamber may be made of a glass material having a transmittance higher than a reference value on a part of one surface opposite to the one surface on which the opening is formed.

The calorimeter is configured within the air conditioning guard as a chamber type and may include an absorber plate.

The opening corresponding to the area of the object to be measured may be formed to protrude, and one surface coupled to the air conditioning guard of the external chamber may be formed to extend obliquely with respect to the protruding opening.

The absorber plate may be connected to the cooling system outside the air conditioning guard by piping.

The air conditioning guard may include a heat exchanger therein.

The heat exchanger may be connected to the air conditioning guard cooling system outside the air conditioning guard by piping.

The outer chamber may include a temperature controller to control the temperature within the outer chamber.

The external chamber may include a foreign material removal device for removing foreign substances from the outside of one surface opposite to the one surface on which the opening is formed.

A refrigerant flows in the pipe, and a flow control device for controlling the flow rate of the refrigerant may be disposed in the pipe.

In another aspect, the present embodiments measure the external solar radiation (Qsolar) in the measuring unit comprising an external chamber coupled to one surface of the air conditioning guard, the air conditioning guard, the calorimeter accommodated in the air conditioning guard, and the air conditioning guard on which the object to be measured is installed Measuring the internal heat gain (Qgain) based on the acquired data and dividing the internal heat gain by the external insolation to obtain a solar radiation gain coefficient, and measuring the external insolation and internal heat gain comprises: an external chamber and Based on the temperature difference between the calorimeters, it is possible to provide a method for measuring the solar gain coefficient, characterized in that the perfusion heat used for measuring the internal heat gain is measured.

The external irradiance may be obtained as a product of the irradiation intensity of the total irradiance incident on the measured object and the area of the measured object.

The internally acquired heat quantity Qgain may be obtained as a value obtained by adding the absorption plate extraction heat amount, the heat extraction heat amount through the air conditioning guard, and the perfusion heat amount measured.

In order to reflect the change according to the position of the sun, the solar gain coefficient can be obtained as the ratio (∑Qgain/∑Qsolar) of the sum (∑Qgain) of the amount of external insolation measured for a certain period of time and the total amount of indoor heat (∑Qsolar). .

The amount of heat through flow may be measured based on the air temperature in the external chamber, the surface temperature of the external chamber side of the object to be measured, the surface temperature of the calorimeter side of the object to be measured, the air temperature of the calorimeter, and the thermal resistance of the object to be measured.

According to the present disclosure, a solar gain coefficient measuring device capable of obtaining a more accurate solar gain coefficient by calculating the internal heat gain in which perfusion heat is reflected according to the difference between the external temperature and the internal temperature of the air conditioning guard in which the window and door are installed and methods may be provided.

1 is a perspective view of an apparatus for measuring a solar gain coefficient according to an embodiment of the present disclosure;
Figure 2 is an exploded perspective view of the external chamber and the air conditioning guard of the solar gain coefficient measuring apparatus according to an embodiment of the present disclosure.
3 is a view illustrating horizontal rotation and vertical rotation of an apparatus for measuring a solar gain coefficient according to an embodiment of the present disclosure.
4 is a view illustrating a state in which an apparatus for measuring a solar gain coefficient according to an embodiment of the present disclosure is mounted on a trailer.
5 is a schematic diagram of a system for calculating the amount of heat from the measuring unit of the solar gain coefficient measuring apparatus according to an embodiment of the present disclosure.
6 is a schematic diagram for explaining an example of another structure of the measuring unit of the solar acquisition coefficient measuring apparatus according to an embodiment of the present disclosure.
7 is a schematic diagram illustrating an apparatus for measuring the amount of external insolation in the apparatus for measuring a solar gain coefficient according to an embodiment of the present disclosure.
8 is a schematic diagram illustrating a concept of measuring the amount of heat extracted from an absorber in the apparatus for measuring a solar gain coefficient according to an embodiment of the present disclosure.
9 is a schematic diagram illustrating the concept of measuring the amount of heat extracted from the air conditioning guard in the solar radiation gain coefficient measuring device according to an embodiment of the present disclosure.
10 is a schematic diagram illustrating a concept of measuring the amount of heat obtained by perfusion heat of an object to be measured in an apparatus for measuring a solar gain coefficient according to an embodiment of the present disclosure.
11 is a view illustrating a foreign material removal apparatus for removing foreign foreign substances according to an embodiment of the present disclosure.
12 is a schematic diagram illustrating the concept of the total external solar radiation in consideration of the change in the position of the sun over time in the solar acquisition coefficient measuring apparatus according to an embodiment of the present disclosure.
13 is a flowchart illustrating a procedure of a method for measuring a solar radiation acquisition coefficient according to another embodiment of the present disclosure.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In adding reference numerals to components of each drawing, the same components may have the same reference numerals as much as possible even though they are indicated in different drawings. In addition, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description may be omitted.

In addition, in describing the components of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the elements from other elements, and the essence, order, order, or number of the elements are not limited by the terms. When a component is described as being “connected”, “coupled” or “connected” to another component, the component may be directly connected or connected to the other component, but other components may be interposed between each component. It will be understood that each component may be “interposed” or “connected”, “coupled” or “connected” through another component.

1 is a perspective view of an apparatus for measuring a solar gain coefficient according to an embodiment of the present disclosure; Figure 2 is an exploded perspective view of the external chamber and the air conditioning guard of the solar gain coefficient measuring apparatus according to an embodiment of the present disclosure. 3 is a view illustrating horizontal rotation and vertical rotation of an apparatus for measuring a solar gain coefficient according to an embodiment of the present disclosure. 4 is a view illustrating a state in which an apparatus for measuring a solar gain coefficient according to an embodiment of the present disclosure is mounted on a trailer.

1 and 4 , the solar gain coefficient measuring apparatus 10 may include a measuring unit 100 , a driving unit 200 , a data collecting unit 500 , and a control unit 400 .

The measurement unit 100 includes a configuration for acquiring data used for measuring a solar acquisition coefficient by installing a window, which is an object to be measured. Referring to FIG. 2 , the measurement unit 100 may include a calorimeter 120 , an air conditioning guard 110 accommodating the calorimeter 120 , and an external chamber 115 coupled to the outside of the air conditioning guard 110 . have.

The calorimeter 120 may be configured as a chamber, and the air conditioning guard 110 may be configured as a chamber surrounding the calorimeter 120 .

Referring to FIG. 1 , the horizontal driving unit 200 may be positioned under the air conditioning guard 110 .

The horizontal driving unit 200 serves to rotate the air conditioning guard 110 in a horizontal direction, that is, left and right, as shown in FIG. 3 , and at the same time supports a load.

The horizontal driving unit 200 includes a lower frame 210 and a first motor 220 . The first motor 220 is accommodated in the middle of the lower frame 210 , and its rotating shaft is connected to the air conditioning guard 110 . Therefore, as the first motor 220 rotates, the air conditioning guard 110 rotates about the axis of the first motor 220 . At this time, the rotation shaft of the first motor 220 is coupled to the lower surface of the air conditioning guard 110 to coincide with the center of the lower surface of the air conditioning guard (110). Therefore, the space required for horizontal rotation of the air conditioning guard 110 is minimized.

As shown in FIG. 3 , the inclination driver 300 adjusts the inclination of the air conditioning guard 110 with respect to the incident light and supports both sides.

The tilt driving unit 300 includes an upper frame 310 , a second motor 320 , and a rotation gear 330 . The rotation gear 330 is connected to the second motor 320 . In addition, the rotation gear 330 is coupled to the side surface of the air conditioning guard (110). Accordingly, the rotation of the second motor 320 is transmitted to the rotation gear 330 , and then the air conditioning guard 110 connected to the rotation gear 330 rotates in the vertical direction with the rotation gear 330 as an axis. That is, the inclination of the air conditioning guard 110 is adjusted. The rotation gear 330 may be attached to the side surface of the air conditioning guard 110 .

At this time, the axis of rotation of the second motor 320 coincides with the center of the side surface of the air conditioning guard 110 . Therefore, since the air conditioning guard rotates based on the center of its side, the space required for rotation to change the inclination is minimized.

The upper frame 310 includes a lower member 310a and a side member 310b extending upwardly from the lower member 310a. The side member 310b is made of two to support both sides of the air conditioning guard 110 . The side member 310b is formed as two bars extending obliquely from the lower member 310a and meeting at the upper part in a triangular shape. A second motor mounting portion 310d on which the second motor is placed is formed on one side member 310b. Accordingly, each side member 310 forms an isosceles triangle shape, and the second motor 320 and the rotation gear 330 are coupled thereto.

Meanwhile, the upper frame 310 directly supports the lower periphery of the air conditioning guard 110 and includes a reinforcing material 310c to increase the rigidity of the side member 310 .

On the other hand, the ladder 340 is attached to the outer surface of the air conditioning guard can facilitate work and maintenance.

In the air conditioning guard 110, as shown in FIG. 2, the calorimeter 120, the absorption plate 122, the calorimeter door 125, the heat exchanger 130, the air conditioning guard fan 140, the air conditioning guard door 150. is housed As shown in FIG. 2 , the air conditioning guard 110 has an open opening on one side of the light entering direction.

The calorimeter 120 is positioned in the air conditioning guard 110 in the form of a chamber and includes an absorption plate 122 . In addition, as shown in FIG. 2 , the calorimeter 120 has an open opening on one side of the light entering direction and a calorimeter door 125 is formed on the other side.

The absorber plate 122 absorbs the inlet solar heat passing through the calorimeter opening, and is fixed to the air conditioning guard 110 .

The outer chamber 115 may be coupled to one surface of the air conditioning guard 110 on which a window, which is a measurement target, is installed. The outer chamber 115 is formed with an open opening on one surface in the direction in which the object to be measured is installed. The corresponding opening may be configured to correspond to the area of the object to be measured, and may be formed so that a part of the object to be measured is inserted.

In addition, the outer chamber 115 may be made of a glass material having a transmittance higher than a predetermined reference value with respect to light transmission on a part of one surface opposite to the one surface in the direction in which the object to be measured is installed. However, this is not limited to a glass material as an example, and is not limited to a specific material if the transmittance is higher than a predetermined reference value.

The outer chamber 115 may include a temperature controller 117 for controlling a temperature in the outer chamber. The temperature controller 117 may perform an operation for adjusting the temperature of the external chamber corresponding to the external temperature of the window, which is the measurement target, as needed. For example, the temperature controller 117 may adjust the temperature in the external chamber to keep the temperature of the air conditioning guard 110 or the calorimeter 120 and the external temperature the same. Alternatively, the temperature controller 117 may adjust the temperature of the external chamber to a low temperature for measuring the solar gain coefficient for winter, or adjust the temperature of the external chamber to a high temperature for measuring the solar gain coefficient for summer. Accordingly, the amount of heat perfusion passing through the window, which is the measurement target, can be measured more accurately in various situations.

3 is a diagram illustrating horizontal rotation and vertical rotation of an apparatus for measuring a solar gain coefficient according to an exemplary embodiment.

By the above-described configuration, the air conditioning guard 110 can be rotated up and down or left and right as shown in FIG. It is also possible to combine vertical and horizontal movements. As a result, the measuring device of the present disclosure can maintain a constant incident angle with respect to a light source incident from any direction, thereby enabling accurate measurement.

4 is a view showing a state in which the solar acquisition coefficient measuring apparatus 10 according to an embodiment of the present disclosure is mounted on a trailer.

As shown in FIG. 4 , the solar acquisition coefficient measuring apparatus 10 of the present disclosure may include a control unit 400 and a data collection unit 500 in addition to the measuring unit 100 .

The control unit 400 is a component that controls the overall operation of the measurement device 10 , and the data collection unit 500 is a component that collects and analyzes data collected by the measurement unit 100 .

The control unit 400 measures external solar radiation (Qsolar) and internal heat gain (Qgain) based on the data collected by the data collection unit, and may obtain a solar radiation gain coefficient based on the external solar radiation amount and internal heat gain. In particular, the control unit 400 may measure the amount of perfusion heat used for measuring the amount of internally obtained heat based on the temperature difference between the outer chamber 115 and the calorimeter 120 .

In addition, the measuring device 10 is mounted on the trailer 600 and can move to a desired position and measure, so that measurement using natural light is possible regardless of a location.

5 is a schematic diagram of a system for calculating the amount of heat in the measuring unit of the solar gain coefficient measuring apparatus according to an embodiment of the present disclosure.

Light passes through the glass material 116 formed on one surface of the outer chamber 115 . The outer chamber 115 may include a temperature controller 117 for controlling the temperature of the air in the outer chamber. As long as the temperature of the air in the outer chamber can be controlled, the temperature controller is not limited to a specific device.

According to an example, as shown in FIG. 6 , the outer chamber 115 may be formed by protruding an opening formed on the side of the object to be measured. The corresponding surface of the external chamber 115 coupled to the air conditioning guard may be formed to extend obliquely with respect to the protruding opening. According to this shape, as shown in FIG. 6 , the shape of the air conditioning guard 110 may also be formed in an oblique line. Accordingly, it is possible to minimize the influence of the air conditioning guard 110 on the light passing from the external chamber 115 to the calorimeter 120 through the measurement object, it is possible to more accurately measure the solar gain coefficient.

According to an example, the external chamber 115 includes a foreign material removal device 800 for removing foreign substances to the outside of one surface opposite to the one surface on which the opening into which the measurement object is inserted is formed, as shown in FIG. 11 . can do. On the corresponding surface of the external chamber 115 , as shown in FIG. 11 , the foreign material removal apparatus driving units 810 and 820 including a movement path for moving the foreign material removal apparatus 800 up and down may be configured.

When a foreign material is accumulated in the portion of the glass material 116 through which light passes in the external chamber 115, the foreign material may be removed by moving the foreign material removal device 800 . To this end, a sensor such as a camera for detecting whether there is a foreign material in the glass material 116 may be further provided. When it is determined that there is a foreign material based on data received from a camera, the control unit 400 may drive the foreign material removing apparatus 800 .

The foreign material removal apparatus 800 illustrated in FIG. 11 is an example, and is not limited thereto. The foreign material removal device 800 may be configured to move in a left and right direction, and a driving method thereof may be implemented differently as needed. According to this, by automatically removing foreign substances, it is possible to measure a more accurate solar gain coefficient.

Light passing through the glass material 116 of the outer chamber 115 continues through the window 112 as the measurement target, and is absorbed by the absorption plate 122 in the calorimeter 120 accommodated in the air conditioning guard 110 . . A refrigerant flows in the absorption plate 122 , and the refrigerant is connected to the cooling system 180 outside the air conditioning guard 110 through a pipe 160 . Accordingly, the absorbed inflow solar heat can be discharged by conduction with the refrigerant.

A heat exchanger 130 is installed in the air conditioning guard 110 . In addition to the amount of heat absorbed by the absorption plate 122 , the amount of heat extracted from the air conditioning guard 100 is extracted to the external air conditioning guard cooling system 190 through the heat exchanger 130 . The heat exchanger 130 is installed to absorb the remaining amount of the incoming solar heat that is not absorbed by the absorption plate 122 of the calorimeter 120 .

A temperature sensor T is arranged at a key location within the device. Specifically, it is installed in the external chamber 115 , a pipe extending from the absorption plate 122 , and a pipe leading to the cooling system 180 and the air conditioning guard cooling system 190 outside the air conditioning guard. Also, the measurement unit 100 is connected to the control unit 400 and the data collection unit 500 .

On the other hand, the heat exchanger 130 is equipped with a fan to facilitate heat exchange by convection.

According to an example, the refrigerant may use water, and the water is supplied by a pump. In addition, a flow rate control device 170 is installed to adjust the flow rate of the refrigerant.

Hereinafter, a method of measuring an accurate solar gain coefficient by solving the problems of the prior art by the above-described device configuration will be described.

In the solar gain coefficient measurement method of the present disclosure, changes according to the position and time of the sun are considered when calculating the external insolation, and when measuring the amount of heat, the amount of heat extracted from the absorption plate, heat extracted through the air conditioning guard, and heat perfusion are all considered. This increases the accuracy of the measurement.

To do this, first measure the external solar radiation (Qsolar).

7 is a schematic diagram illustrating a concept of measuring the amount of external insolation in an apparatus for measuring a solar gain coefficient according to an embodiment of the present disclosure.

External irradiance is defined as the irradiation intensity and specimen area of the vertical plane based on the entire surface of the specimen as follows.

Qsolar = Etotal x As

Etotal: Irradiation intensity (W/m2) of the total solar radiation incident on the window

As: Area of window (m2)

That is, the total external insolation is obtained by obtaining the irradiation intensity (Etotal, W/m2) of the amount of insolation incident on the vertical plane from the vertical solar irradiometer 700, and multiplying this by the area (As, m2) of the window.

Next, the internal heat gain (Qgain) is calculated. By reflecting all of the amount of external solar radiation absorbed by various parts within the measurement unit in the internal heat gain, it is possible to measure more accurately than in the prior art.

That is, by including the heat of extraction through the air conditioning guard and the heat of perfusion transmitted through the pipe, in addition to the heat extracted from the absorption plate, the amount of heat extracted in various forms such as convection and radiation from various parts of the measurement unit can also be measured.

This concept is illustrated in FIGS. 8 to 10 . 8 is a schematic diagram illustrating the concept of measuring the amount of heat extracted from the absorber in the apparatus for measuring the solar gain coefficient according to an embodiment of the present disclosure, and FIG. 9 is the amount of heat extracted from the air conditioning guard in the apparatus for measuring the solar gain coefficient according to an embodiment of the present disclosure. It is a schematic diagram illustrating a measurement concept, and FIG. 10 is a schematic diagram illustrating a measurement concept of the amount of heat obtained by perfusion heat of a specimen in an apparatus for measuring a solar gain coefficient according to an embodiment of the present disclosure.

The internal heat gain is expressed as the following equation.

Qgain = Qfluid + Qguard + Qu-value

Qgain: internal heat gain

Qfluid: Absorber plate extraction heat

Qguard: heat extracted through air conditioning guard

Qu-value: perfusion caloric value

In the present invention, when deriving the solar gain coefficient using the measured external solar radiation and internal heat gain, as shown in FIG. 12 , the change in the position of the sun over time is also considered.

That is, by adding the change according to the position of the sun and the indoor radiative heat of solar radiation during the total measurement time, the total external solar radiation (W) ∑Qgain (S100) during the measurement period and the total indoor heat gain (W) ∑Qsolar during the measurement period are obtained ( S110).

Finally, from ∑Qgain and ∑Qsolar obtained in this way, the solar gain coefficient is obtained in which all changes in the position and time of the sun and indoor heat from solar radiation are reflected as shown below (S120).

Solar gain coefficient = ∑Qgain / ∑Qsolar

In the above, even though all the components constituting the embodiment of the present invention are described as being combined or operating in combination, the present invention is not necessarily limited to this embodiment. That is, within the scope of the object of the present invention, all the components may operate by selectively combining one or more.

In addition, terms such as "comprises", "comprises" or "have" described above mean that the corresponding component may be embedded, unless otherwise specified, excluding other components. Rather, it should be construed as being able to further include other components. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless otherwise defined. Terms commonly used, such as those defined in the dictionary, should be interpreted as being consistent with the meaning in the context of the related art, and are not interpreted in an ideal or excessively formal meaning unless explicitly defined in the present invention.

The above description is merely illustrative of the technical idea of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

10: solar gain coefficient measuring device
100: measuring unit 110: air conditioning guard
112: object 115: external chamber
116: glass material 117: thermostat
120: calorimeter 122: absorption plate
125: calorimeter door 130: heat exchanger
140: air conditioning guard fan 150: air conditioning guard door
160: pipe 170: flow control device
180: cooling system 190: air conditioning guard cooling system
200: horizontal driving unit 210: lower frame
220: first motor 300: tilt driving unit
310: upper frame 320: second motor
400: control unit 500: data collection unit
600: trailer 700: vertical dosimeter
800: foreign material removal device 810, 820: foreign material removal device driving unit

Claims (15)

a measurement unit including an air conditioning guard, a calorimeter accommodated in the air conditioning guard, and an external chamber coupled to one surface of the air conditioning guard on which a measurement target is installed;
a driving unit connected to the measuring unit to move the measuring unit according to the incident direction of the light source;
a data collection unit for receiving and collecting the data obtained from the measurement unit; and
A control unit for measuring external solar radiation (Qsolar) and internal heat gain (Qgain) based on the data collected by the data collection unit, and obtaining a solar radiation gain coefficient based on the external solar radiation amount and the internal heat gain;
An opening corresponding to the area of the object to be measured is formed on one surface of the external chamber coupled to the air conditioning guard,
The control unit measures the amount of perfusion heat used for measuring the internal heat quantity based on the temperature difference between the external chamber and the calorimeter, and the sum of the external solar radiation measured for a certain time to reflect the change according to the position of the sun (∑Qgain) and the total indoor heat gain (∑Qsolar) ratio (∑Qgain/∑Qsolar), characterized in that the control to obtain the solar gain coefficient measuring device. The method of claim 1,
The outer chamber, a solar gain coefficient measuring device, characterized in that a part of the surface opposite to the one surface on which the opening is formed is made of a glass material having a higher transmittance than a predetermined transmittance. The method of claim 1,
Solar gain coefficient measuring device, characterized in that the absorption plate is built in the calorimeter. 4. The method of claim 3,
An opening corresponding to the area of the object to be measured is formed to protrude, and one surface of the outer chamber coupled to the air conditioning guard is formed to extend obliquely with respect to the protruding opening. ◈Claim 5 was abandoned when paying the registration fee.◈ 4. The method of claim 3,
The solar radiation gain coefficient measuring device, characterized in that the absorption plate is connected to the cooling system outside the air conditioning guard by a pipe. ◈Claim 6 was abandoned when paying the registration fee.◈ The method of claim 1,
Solar gain coefficient measuring device, characterized in that the heat exchanger is installed inside the air conditioning guard. ◈Claim 7 was abandoned when paying the registration fee.◈ 7. The method of claim 6,
Solar radiation acquisition coefficient measuring device, characterized in that the heat exchanger is connected to the air conditioning guard cooling system outside the air conditioning guard by a pipe. ◈Claim 8 was abandoned when paying the registration fee.◈ The method of claim 1,
The outer chamber, solar radiation acquisition coefficient measuring device, characterized in that it comprises a temperature controller for controlling the temperature in the outer chamber. The method of claim 1,
The external chamber, solar radiation acquisition coefficient measuring device, characterized in that provided with a foreign material removal device for removing foreign substances on the outside of one surface opposite to the one surface on which the opening is formed. 8. The method according to any one of claims 5 or 7,
A solar radiation acquisition coefficient measuring device, characterized in that the refrigerant flows in the pipe and a flow control device for controlling the flow rate of the refrigerant is disposed in the pipe. measuring external solar radiation (Qsolar);
Measuring internal heat gain (Qgain) based on data obtained from a measurement unit including an air conditioning guard, a calorimeter accommodated in the air conditioning guard, and an external chamber coupled to one surface of the air conditioning guard on which the measurement target is installed ; and
Comprising the step of obtaining a solar gain coefficient by dividing the internal heat gain by the external solar radiation,
Measuring the amount of external insolation and the amount of internal heat obtained may include measuring the amount of perfusion heat used for measuring the amount of internal heat obtained based on a temperature difference between the external chamber and the calorimeter,
In the step of obtaining the solar gain coefficient, the ratio (∑Qgain/∑Qsolar) of the sum of external solar radiation measured for a certain time (∑Qgain) and the total indoor heat gain (∑Qsolar) to reflect the change according to the position of the sun (∑Qgain/∑Qsolar) A method of measuring the solar gain coefficient, characterized in that to obtain the solar gain coefficient. 12. The method of claim 11,
The amount of external insolation is obtained as a product of the irradiation intensity of the amount of total solar radiation incident on the object to be measured and the area of the object to be measured. 12. The method of claim 11,
The internal heat gain (Qgain) is a solar gain coefficient measurement method, characterized in that it is obtained as a value obtained by measuring an absorption plate extraction heat amount, an extraction heat amount through an air conditioning guard, and the perfusion heat amount. delete 12. The method of claim 11,
The perfusion heat is
Solar radiation acquisition coefficient, characterized in that measured based on the air temperature in the external chamber, the external chamber side surface temperature of the object to be measured, the calorimeter side surface temperature of the object to be measured, the air temperature of the calorimeter and the thermal resistance of the measured object How to measure.

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