KR20140010579A - Apparatus and method for evaluating building energy performance - Google Patents

Abstract

An apparatus and method for evaluating building energy performance are disclosed. The apparatus for evaluating building energy performance according to the present invention comprises: a skin heat loss amount calculator for calculating an amount of heat lost through the skin of a building; a heat loss coefficient calculator for calculating a heat loss coefficient using the skin heat loss amount; an interior heat acquisition amount calculator for calculating an amount of heat obtained by heating in the interior of the building; a heating degree day calculator for calculating a reference point temperature using the heat loss coefficient and the interior heat acquisition amount and calculating a heating degree day using the reference point temperature; and a heating energy analyzing unit for calculating heating energy consumption using the heating degree day, and energy efficiency of heat source equipment installed in the building and calculating a heating energy saving rate. [Reference numerals] (101) Basic information input unit; (102) Skin heat loss amount calculator; (103) Waste heat loss amount calculator; (104) Annual loss coefficient calculator; (105) Interior heat acquisition amount calculator; (106) Solar heat acquisition amount calculator; (107) Heating degree day calculator; (108) Heating energy analyzing unit; (109) Additional energy saving rate calculator

Description

Apparatus and method for evaluating building energy performance {APPARATUS AND METHOD FOR EVALUATING BUILDING ENERGY PERFORMANCE}

The present invention relates to an apparatus and method for evaluating building energy performance. The present invention relates to a building energy storage system by calculating a heating degree by using an envelope heat loss amount and an indoor heat acquisition amount of a building, and analyzing the heating energy using the calculated heating file. The present invention relates to an apparatus and method for evaluating energy performance that can be easily calculated and objectively compared to a building or a remodeled building.

With the entry into force of international climate change agreements in developed countries, systematic energy saving policies are being established, recognizing that reduction of carbon dioxide through energy saving must be an option, not an option. To establish a policy, the Building Energy Conservation Code (EPBD) was enacted in 2002, with the goal of saving at least 22% of energy by 2010, and allowing Member States to set standards for the minimum energy requirements of buildings. have. The pressure of the international community on understanding climate change agreements is growing in developing countries, including Korea, but energy consumption in the Korean building sector continues to increase.

Therefore, more than 20 apartments, including apartments, should be built as green homes that can reduce energy use by 10-15%. The Ministry of Land, Transport and Maritime Affairs passed the State Council on October 13, 2009, and the regulations on housing construction standards, etc., will be implemented immediately after promulgation after the president's approval. In particular, even if one of the houses applying for business approval does not meet the minimum standards, business approval will not be given. In order to do this, a system for evaluation is required, but in the past, it was written manually by hand, making it difficult to evaluate, and there are many difficulties in verification, and there is currently no evaluation system.

The Ministry of Land, Transport and Maritime Affairs announced the legislative proposal for some revisions of building energy saving design standards in the October 2008 notification of Ministry of Land, Transport and Maritime Affairs. And, "In order to expand energy-saving buildings, we will provide incentives such as volume ratio reduction for buildings that have received energy efficiency rating certification, improve the effectiveness of the performance indicators review points in the current energy-saving plan, and add other design recommendations. To compensate for some of the shortcomings in the operation of the standard. ”

On the other hand, in order to promote the creation of green buildings by establishing the basic and construction plans for green buildings, and to establish an institutional mechanism for reducing greenhouse gas emissions and expanding green buildings, the 'Green Building Creation Support Act' on February 22, 2012 Was enacted and promulgated. In the past, an energy evaluation sheet for evaluating energy performance was required only for new buildings, but according to the 'Green Building Construction Support Act', an energy evaluation report was also required for an existing building or a remodeled building after construction.

The energy performance of a building is greatly influenced by the enclosure of walls, doors, windows, etc., and the heat generated in the room. Therefore, there is an urgent need for a device or method that can be easily calculated and objectively compared to new buildings as well as new buildings and remodeled buildings by using the main factors affecting the energy performance of such buildings. .

An object of the present invention is to calculate the heating degree using the heat loss of the building and the amount of indoor heat gain of the building and to analyze the heating energy using the heating file calculated as such, so that not only new buildings but also existing buildings or remodeled buildings It is to provide an energy performance evaluation apparatus and method that can easily calculate energy performance and can be compared objectively.

An apparatus for evaluating energy performance according to an embodiment of the present invention includes: an envelope heat loss calculation unit configured to calculate an envelope heat loss amount through a building envelope; A heat loss coefficient calculating unit configured to calculate a heat loss coefficient using the envelope heat loss amount; An indoor heat acquisition amount calculation unit configured to calculate an indoor heat acquisition amount due to heat generation in the interior of the building; A heating degree calculation unit configured to calculate a reference point temperature using the heat loss coefficient and the indoor heat acquisition amount, and calculate a heating degree using the reference point temperature; And a heating energy analysis unit that calculates a heating energy usage and calculates a heating energy saving rate by using the energy efficiency of the heating coil and the heat source equipment installed in the building.

The building energy performance evaluation apparatus may further include a ventilation heat loss calculation unit configured to calculate a ventilation heat loss amount due to the ventilation in the building. In this case, the heat loss coefficient calculating unit may calculate a heat loss coefficient by using the envelope heat loss amount and the ventilation heat loss amount.

The building energy performance evaluation apparatus may further include a solar heat acquisition amount calculation unit configured to calculate an amount of solar heat acquired by inflow of solar radiation energy through a window of the building. In this case, the heating day calculator may calculate a reference point temperature using the heat loss coefficient, the indoor heat acquisition amount, and the solar heat acquisition amount, and calculate a heating degree using the reference point temperature.

The skin heat loss calculating unit calculates a heat permeability of the skin of the building by using information related to at least one of a component, a thermal performance value, a thickness, an area, and an additional insulation of the skin of the building, and uses the heat permeation rate. The sheath heat loss can be calculated.

The jacket heat loss calculator may calculate the jacket heat loss by calculating a heat loss through at least one of an outer wall, a window, a door, a roof, and a floor of the building.

The indoor heat acquisition amount calculation unit may calculate the indoor heat acquisition amount by using the heat generation amount of the human body corresponding to the area of the building and the heat generation amount of the indoor electronic device.

The solar heat amount calculating unit may calculate the solar heat amount using the information related to at least one of a direction, an area, a shielding coefficient, and a shade shape of a window of the building.

The building energy performance evaluation apparatus may further include a basic information input unit for inputting basic information of a building including information related to at least one of the address, area, direction, year of completion, number of floors, floor-by-floor ceiling, and floor area of the building. Can be.

The building energy performance evaluation apparatus may further include an addition reduction rate setting unit that sets an addition reduction rate corresponding to the corresponding item and the corresponding item when there is an item to additionally reduce heating energy in the building. In this case, the heating energy analysis unit may calculate the heating energy saving rate by applying the addition reduction rate.

Building energy performance evaluation method according to an embodiment of the present invention, calculating the amount of heat loss through the shell of the building; Calculating a heat loss coefficient using the envelope heat loss amount; Calculating an indoor heat acquisition amount due to heat generation in the interior of the building; Calculating a reference point temperature using the heat loss coefficient and the room heat acquisition amount; Calculating a heating degree using the reference point temperature; And calculating a heating energy usage and calculating a heating energy saving rate using the energy efficiency of the heating coil and the heat source equipment installed in the building.

The building energy performance evaluation method may further include calculating a ventilation heat loss amount due to ventilation in the building. In this case, the calculating of the heat loss coefficient may include calculating a heat loss coefficient by using the envelope heat loss amount and the ventilation heat loss amount.

The building energy performance evaluation method may further include calculating an amount of solar heat obtained by inflow of solar radiation energy through a window of the building. In this case, the calculating of the reference point temperature may include calculating a reference point temperature by using the heat loss coefficient, the indoor heat acquisition amount, and the solar heat acquisition amount.

The calculating of the heat loss amount of the skin may include calculating heat permeability of the skin of the building using information related to at least one of a component, a thermal performance value, a thickness, an area, and an additional insulation of the skin of the building; And calculating the sheath heat loss using the heat permeability.

The step of calculating the sheath heat loss amount may include calculating the sheath heat loss amount by calculating a heat loss amount through at least one of an outer wall, a window, a door, a roof, and a floor of the building.

The calculating of the indoor heat acquisition amount may include calculating the indoor heat acquisition amount by using the calorific value of the human body corresponding to the area of the building and the calorific value of the indoor electronic device.

The calculating of the solar heat acquisition amount may include calculating the solar heat acquisition amount using information related to at least one of a direction, an area, a shielding coefficient, and a shade shape of a window of the building.

The method for evaluating building energy performance may further include inputting basic information of a building including information related to at least one of an address, a region, a direction, a year of completion, a number of floors, a floor ceiling and a floor area of the building. .

The building energy performance evaluation method may further include setting a corresponding item and an addition reduction rate corresponding to the corresponding item when there is an item to additionally reduce heating energy in the building. In this case, the calculating of the heating energy saving rate may include calculating the heating energy saving rate by applying the addition reduction rate.

According to an aspect of the present invention, by calculating the heating degree using the heat loss of the building and the amount of room heat gain of the building and by analyzing the heating energy using the heating file calculated in this way, not only the new building but also the main building or the remodeled building. In addition, it is possible to provide a building energy performance evaluation apparatus and method that can easily calculate the energy performance of the building and can be compared objectively.

1 is a view schematically showing a building energy performance evaluation apparatus according to an embodiment of the present invention.
2 is a flowchart illustrating a method for evaluating building energy performance according to an embodiment of the present invention.
3 is a flowchart illustrating a process of calculating the envelope heat loss in the building energy performance evaluation method according to an embodiment of the present invention.
4 to 14 is a view for explaining an embodiment of a building energy performance evaluation method according to an embodiment of the present invention.
15A to 15E are diagrams illustrating a building energy performance evaluation report generated by the building energy performance evaluation apparatus and method according to an embodiment of the present invention.

The present invention will now be described in detail with reference to the accompanying drawings. Hereinafter, a repeated description, a known function that may obscure the gist of the present invention, and a detailed description of the configuration will be omitted. Embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art. Accordingly, the shapes and sizes of the elements in the drawings and the like can be exaggerated for clarity.

In addition, the building energy performance evaluation apparatus according to an embodiment of the present invention may be implemented in one or more forms of a personal computer, a smart phone, personal digital assistants (PDA), and a tablet computer.

1 is a view schematically showing a building energy performance evaluation apparatus according to an embodiment of the present invention.

Referring to Figure 1, the building energy performance evaluation apparatus 100 according to an embodiment of the present invention, the basic information input unit 101, jacket heat loss amount calculation unit 102, ventilation heat loss amount calculation unit 103, heat loss A coefficient calculator 104, an indoor heat gain amount calculator 105, a solar heat gain amount calculator 106, a heating degree calculator 107, a heating energy analyzer 108, and an addition reduction factor calculator 109. Can be configured. The building energy performance evaluation apparatus 100 shown in FIG. 1 is according to an embodiment, and the blocks shown in FIG. 1 are not all required components, and in other embodiments, some blocks may be added, changed, or deleted. have. In the embodiment shown in Figure 1 building energy performance evaluation apparatus 100 according to an embodiment of the present invention targets the building (10).

The basic information input unit 101 inputs basic information of a building including information related to at least one of an address, a region, a direction, a year of completion, number of floors, a ceiling and a floor area of the building 10. In addition to inputting the basic information of the building 10, the basic information input unit 101 determines the basic volume, solar radiation amount, etc. necessary for the actual calorie calculation. The area can be divided into 13 areas including Gangneung, Gwangju, Daegu, Daejeon, Mokpo, Busan, Seoul, Incheon, Jeonju, Jeju, Jinju, Cheongju, Pohang, etc. Enter to apply the envelope thermal performance value of the phase. Floor ceilings and floor areas are entered for the calculation of the total interior volume of the house and the energy consumption per final unit area.

The outer shell heat loss calculating unit 102 calculates the outer shell heat loss amount through the outer shell of the building 10. The envelope heat loss calculating unit 102 may calculate the envelope heat loss by calculating a heat loss amount through at least one of an outer wall, a window, a door, a roof, and a floor of the building 10. And the skin heat loss calculation unit 102 calculates the heat permeability of the skin of the building 10 by using information related to one or more of the components of the skin of the building 10, thermal performance value, thickness, area, additional insulation. The sheath heat loss may be calculated using the heat permeability.

In the case of the outer wall, it is possible to calculate the heat loss through each outer wall by inputting the thermal performance value, area, thickness, etc. of the outer wall for each direction. The thermal performance value of the exterior wall can be calculated by the combination of the constituents of the building 10. If the constituents cannot be confirmed, the heat permeation rate of the building law corresponding to the completion year entered by the official certificate or basic information input unit 101 is input. can do. In addition, when remodeling an existing building, it is possible to easily modify the thermal performance of the wall after construction by entering only the type and thickness of the added insulation.

In the case of windows, the heat dissipation through each window can be calculated by inputting the composition, thermal performance value, area, and thickness of each window. The thermal performance of windows can be entered by referring to the thermal performance of each component combination according to the Energy Saving Design Standard. The window is the most important part where heat loss of the building 10 is shown along with the outer wall, and it causes a great change in the annual heating energy consumption of the house according to the area and the heat permeation rate.

For doors, the heat loss through the door can be calculated by entering the area of the door located on the outer wall and the thermal performance values. As with windows, a diagram of the Energy Saving Design Standards is available.

In the case of a roof or a floor, it can input in the same way as an exterior wall. In the case of a roof, the heat loss is calculated by outside air through the roof. In the case of floors, the heat is lost when facing the ground. As with the outer wall, the thermal performance value is calculated through the combination of each component, and when there is no data for each component, the heat transfer rate value of the building method corresponding to the construction year input from the input unit 101 is used.

The ventilation heat loss calculation unit 103 calculates the ventilation heat loss due to the ventilation in the building 10. The ventilation heat loss calculating unit 103 may calculate the ventilation heat loss based on the number of ventilations, and at this time, the number of ventilations may be set to 0.7 times / h, which is the current building method.

The heat loss coefficient calculator 104 calculates a heat loss coefficient using the heat loss amount calculated as described above. In one embodiment, when the energy performance evaluation apparatus 100 does not include the ventilation heat loss calculator 103, the heat loss coefficient calculator 104 calculates the skin heat loss calculated by the jacket heat loss calculator 102. It is possible to calculate the heat loss coefficient using. In another embodiment, when the building energy performance evaluation apparatus 100 includes both the sheath heat loss calculation unit 102 and the ventilation heat loss calculation unit 103, the heat loss coefficient calculation unit 104 may measure the sheath heat loss amount and All of the ventilation heat losses can be used to calculate the heat loss coefficients.

The indoor heat acquisition amount calculation unit 105 calculates an indoor heat acquisition amount due to heat generation in the interior of the building 10. In one embodiment, the indoor heat acquisition amount calculation unit 105 may calculate the indoor heat acquisition amount using the heat generation amount of the human body and the heat generation amount of the indoor electronic device corresponding to the area of the building 10.

The solar heat amount calculating unit 106 calculates the solar heat amount obtained by the inflow of solar radiation energy through the window of the building 10. In one embodiment, the solar heat gain calculation unit 106 may calculate the solar heat gain using information related to one or more of the direction, area, shielding coefficient, and sunshade of the window of the building 10. The amount of solar heat is obtained from the climate data of 13 regions according to the window area and the window type, the shielding coefficient according to the glass type of the window, the shading type, and the like. Can be extracted and calculated.

In one embodiment, when the building energy performance evaluation apparatus 100 does not include the solar heat gain amount calculation unit 106, the heating degree calculation unit 107 uses the heat loss coefficient and the room heat gain amount to calculate a reference point temperature. The heating degree may be calculated using the reference point temperature. In another embodiment, when the building energy performance evaluation apparatus 100 includes both the indoor heat acquisition amount calculation unit 105 and the solar heat acquisition amount calculation unit 106, the heating day calculation unit 107 may include the heat loss coefficient, The reference point temperature may be calculated using the indoor heat acquisition amount and the solar heat acquisition amount, and the heating degree may be calculated using the reference point temperature.

The heating degree is the cumulative sum of the daily average temperatures obtained by calculating the difference between the daily average temperature and the reference point temperature for the days where the daily average temperature is lower than the reference point temperature. The important thing here is to set the reference point temperature, which is the temperature at which people can be comfortable in the room, which depends on race, ethnicity, age, individual differences, purpose, facility use, and socioeconomic conditions. As described above, the heating day calculation unit 107 determines the reference point temperature using the heat loss coefficient, the room heat acquisition amount, the solar heat acquisition amount, and the like.

The heating energy analysis unit 108 calculates the heating energy consumption by using the energy efficiency of the heating file and the heat source equipment installed in the building, and calculates a heating energy saving rate. The heating energy analysis unit 108 may calculate the amount of heating energy used by the heat source equipment installed in the building according to the heating degree. At this time, the energy efficiency of the heat source equipment can be considered. Types of heat source equipment include condensing boilers, oil boilers and gas boilers, and the efficiency is mainly 80 to 90%. Then, the heating energy analysis unit 108 finally calculates the heating energy saving rate. The heating energy saving rate is a figure that indicates how much the heating energy consumption is reduced compared to the standard house.

The addition reduction rate calculation unit 109 sets an addition reduction rate corresponding to the corresponding item and the corresponding item when there is an item to additionally reduce heating energy in the building 10. Items that can additionally reduce heating energy in the building (10) include whether a windproof room is installed at the entrance, whether it is a waste heat recovery type ventilator, whether the room temperature automatic control device is installed in each room or zone, and the main outlet of the living room is used. Whether it is possible to shut off the power at this convenient location, whether or not to install renewable energy for each load, and whether or not to use high-efficiency lamps and LED lighting, and the addition reduction rate can be set in various ways depending on the reduction contribution. When the addition reduction rate is set in the addition reduction rate calculation unit 109, the heating energy analysis unit 108 may calculate the heating energy reduction rate by applying the addition reduction rate.

2 is a flowchart illustrating a method for evaluating building energy performance according to an embodiment of the present invention.

Referring to FIG. 2, first, when a method for evaluating building energy performance according to an embodiment of the present invention is started, an amount of heat loss through the shell of a building is calculated (S201). And calculates the heat loss of the ventilation due to the ventilation in the building (S202). Then, the heat loss coefficient is calculated using the sheath heat loss amount or the ventilation heat loss amount (S203).

After the heat loss coefficient is calculated (S203), the indoor heat acquisition amount due to heat generation in the interior of the building is calculated (S204). And the solar heat acquisition amount by the solar radiation energy inflow through the window of the building is calculated (S205). Then, the reference point temperature is calculated using one or more of the heat loss coefficient, the indoor heat acquisition amount, and the solar heat acquisition amount (S206). When the reference point temperature is calculated, the heating degree is calculated using the reference point temperature (S207).

And the heating energy and the energy efficiency of the heat source equipment installed in the building to calculate the heating energy consumption and calculate the heating energy saving rate (S208).

Building energy performance evaluation method according to an embodiment of the present invention is similar to the building energy performance evaluation apparatus according to an embodiment of the present invention shown in FIG. Since the description of the above is applied as is, detailed description thereof will be omitted. In FIG. 2, as in FIG. 1, each step of the flowchart shown in FIG. 2 is not a necessary step in all steps, and some steps may be added, changed or deleted in another embodiment. For example, in another embodiment, the building energy performance evaluation method may be configured with the exception of calculating the amount of ventilation heat loss (S202) or calculating the amount of solar heat obtained (S205).

3 is a flowchart illustrating a process of calculating the envelope heat loss in the building energy performance evaluation method according to an embodiment of the present invention.

The process shown in FIG. 3 corresponds to the step (S201) of calculating the sheath heat loss through the skin of the building in FIG. 2, and FIG. 3 is for explaining a specific embodiment of the step S201 of FIG. 2.

Referring to Figure 3, when the process of calculating the envelope heat loss in the building energy performance evaluation method according to an embodiment of the present invention, first check whether there is wall component information (S301). Here, the wall is a concept encompassing all exterior walls, roofs and floors. If it is confirmed in step S301 that the wall component information is present, the thermal permeability is calculated after input of the exterior wall, roof, and floor component (S302). However, if it is confirmed in step (S301) that there is no wall component information, confirm the completion year of the building (S303), and receives the heat transmission rate of the building method of the completion year (S304). Then it receives the area of the outer wall, roof, floor (S305).

After the above process, if the thermal permeability, area of the outer wall, roof, floor is determined, it is determined whether the window, door information is present (S306). If it is determined in step S306 that the window and the door information, the window frame, the glass of the window after checking the heat permeability is calculated (S307). However, if it is determined in step S306 that there is no window or door information, the heat transmission rate is directly input (S308). At this time, the thermal permeability can be entered by referring to the 'energy saving design criteria'. Then, the area of the window and the door is input (S309).

After such a process, the heat loss amount of the shell is calculated using the heat permeability and the area of the outer wall, roof, floor, window, and door (S310).

4 to 14 is a view for explaining an embodiment of a building energy performance evaluation method according to an embodiment of the present invention.

4 to 14, the building energy performance evaluation method according to an embodiment of the present invention is implemented as a program as an embodiment. As such, the method for evaluating building energy performance according to an embodiment of the present invention may be implemented as a program, and in a computer readable form, such as a CD-ROM, a RAM, a ROM, and a floppy disk. Can be stored in a recording medium such as a hard disk, a magneto-optical disk. A program on which a building energy performance evaluation method according to an embodiment of the present invention is implemented is referred to as an energy performance evaluation program.

4 illustrates a basic information input screen 400 in a building energy performance evaluation program. The basic information input screen 400 is a screen related to controlling the basic information input unit of the building energy performance evaluation apparatus according to an embodiment of the present invention. In the basic information input screen 400, building name 401, address 402, area 403, direction 404, year of completion 405, room temperature 406, building structure 407, floor information 408 ), Etc. can be entered. The area can be divided into 13 areas including Gangneung, Gwangju, Daegu, Daejeon, Mokpo, Busan, Seoul, Incheon, Jeonju, Jeju, Jinju, Cheongju, Pohang, etc. Enter to apply the envelope thermal performance value of the phase.

In the part of inputting the floor information 408, the floor volume calculation unit 409 inputs the number of floors 410, the average ceiling 411, the floor area 412, the long section length 413, and the like, and the registration button 414 is inputted. Press to register at the bottom list 416, and press the delete button 415 is deleted from the list 416. Floor heights and floor spaces are input for estimating the total interior volume of the house and for calculating the energy consumption per final unit area.

5 to 8 are screens for calculating the sheath heat loss in the building energy performance evaluation program, and are screens related to controlling the sheath heat loss calculating unit of the building energy performance evaluation apparatus.

5 shows an exterior wall heat loss calculation screen 500 of the building energy performance evaluation program. In the outer wall heat loss calculation screen 500, the wall selection unit 501 shows the direction 502, the wall definition 503, the area 504, whether the insulation is added 505, the heat permeability 506, the wall structure diagram 507 ), Etc. can be entered. Entering the above items into the wall selection unit 501 and pressing the registration button 508 is registered in the list 511 on the left, can be modified by pressing the modify button 509, press the delete button 510 It is deleted from the list 511.

The thermal performance value of the exterior wall can be calculated by the combination of the components of the wall. If the component is not available, the heat permeability of the building code corresponding to the official certificate or the completion year can be entered. In addition, when remodeling an existing building, it is possible to easily modify the thermal performance of the wall after construction by checking whether the insulation is added (505) and input only the type and thickness of the added insulation.

6 shows the window heat loss calculation screen 600 of the building energy performance evaluation program. In the window heat loss calculation screen 600, the window selection unit 601 uses the direction 602, the glass type 603, the glass thickness 604, the frame type 605, the area 606, the heat transmission rate 607, A glass structure plot 608 or the like can be entered. Enter the above items into the window selection unit 601 and press the registration button 609 is registered in the list 612 on the left, can be modified by pressing the edit button 610, press the delete button 611 It is deleted from the list 612.

In the window heat loss calculation screen 600, the heat dissipation through each window may be calculated by inputting the composition, heat permeability, and area of each window. The thermal permeability of windows can be entered by referring to thermal performance values for each component combination according to the Energy Saving Design Standard.

7 shows the door heat loss calculation screen 700 of the building energy performance evaluation program. In the door heat loss calculation screen 700, the door selection unit 701 uses the direction 702, the door type 703, the heat cross-linking material 704, the air layer thickness 705, the area 706, the heat permeability 707, A door structure diagram 708 can be entered. Enter the above items into the door selection unit 701 and press the registration button 709 is registered in the list 712 on the left, can be modified by pressing the modify button 710, press the delete button 711 It is deleted from the list 712.

In the door heat loss calculation screen 700, the heat loss through the door may be calculated by inputting an area and a thermal performance value of the door located on the outer wall. As with windows, a diagram of the Energy Saving Design Standards is available.

8 shows the roof, floor heat loss calculation screen 800 of the building energy performance evaluation program. On the roof and floor heat loss calculation screen 800, the skin selection unit 801 inputs the skin type 802, the roof definition 803, the area 804, the heat transmission rate 805, the roof structure drawing 806, and the like. can do. Entering the above items into the skin selection unit 801 and pressing the registration button 807 is registered in the list 810 on the left, can be modified by pressing the modify button 808, press the delete button 809 It is deleted from the list 810.

The roof and floor heat loss calculation screen 800 may be input in the same manner as the outer wall heat loss calculation screen 500. In the case of a roof, the heat loss is calculated by outside air through the roof. In the case of floors, the heat is lost when facing the ground. As with the exterior wall, the thermal performance value is calculated through the combination of each component, and when the data for each component are not available, the heat transfer rate value of the building method corresponding to the construction year is used.

9 illustrates a screen 900 for calculating a ventilation heat loss amount and a total heat loss amount in a building energy performance evaluation program. The ventilation heat loss amount and the total heat loss amount calculation screen 900 are screens related to controlling the ventilation heat loss amount calculator and the heat loss coefficient calculator of the energy performance evaluation apparatus according to an embodiment of the present invention. In the ventilation heat loss amount and the total heat loss amount calculation screen 900, the ventilation heat loss amount is calculated by inputting the number of ventilation times 902, the actual area 903, the actual volume 904, and the like. Can be calculated. In the part 902 for calculating the total heat loss amount, the total heat loss amount 909 is calculated by pressing the total heat loss button 908 by using the envelope heat loss amount 907 and the ventilation heat loss amount 905 calculated above. The heat loss coefficient 910 is calculated using the total heat loss amount. After the calculation of the heat loss coefficients 910 is completed, the completion button 911 may be pressed to terminate the ventilation heat loss amount and the total heat loss amount calculation screen 900.

10 shows a solar heat acquisition amount calculation screen 1000 in a building energy performance evaluation program. The solar heat amount calculation screen 1000 is a screen related to controlling the solar heat amount calculation unit of the building energy performance evaluation apparatus according to an embodiment of the present invention. In the solar heat acquisition amount calculation screen 1000, the direction 1002, the solar radiation amount 1003, and the area 1004 can be input from the solar radiation amount calculation unit 1001, and the shielding coefficient 1006 is shielded from the shielding and awning coefficient input unit 1005. , Sunshade 1007, protruding length 1008 and the like can be entered. Entering the above items into the solar radiation calculation unit 1001 and the sunshade coefficient input unit 1005 and pressing the registration button 1010 is registered in the list 1009 on the left, and can be modified by pressing the correction button 1011. Pressing delete button 1012 removes it from list 1009. Then, the completion button 1013 may be pressed to end the solar heat acquisition amount calculation screen 1000.

11 illustrates an indoor heat acquisition amount calculation screen 1100 in the building energy performance evaluation program. The indoor heat acquisition amount calculation screen 1100 is a screen related to controlling the indoor heat acquisition amount calculating unit of the building energy performance evaluation apparatus according to an embodiment of the present invention. In the indoor heat acquisition amount calculation screen 1100, the heating element 1102, the floor area 1103, and the like may be input by the internal heating element input unit 1101. By inputting the above items into the internal heating element input unit 1101 and pressing the correction button 1105, the list 1104 on the left side can be modified. In addition, the completion button 1106 may be pressed to end the indoor heat acquisition amount calculation screen 1100.

12 illustrates a heat source equipment installation screen 1200 in a building energy performance evaluation program. The heat source equipment installation screen 1200 is a screen for inputting the heat source equipment installed in the building. The heat source equipment installation screen 1200 may input the equipment name 1201, the type 1202, and the efficiency 1203. When this is entered and the registration button 1206 is pressed, the equipment is registered on the list 1204 on the left side, and the average efficiency value 1205 is calculated and displayed at the bottom. Press the modify button 1207 to modify, and press the delete button 1208 to delete. Then, the completion button 1209 may be pressed to end the heat source equipment installation screen 1200.

13 and 14 are screens for displaying a heating energy analysis result in a building energy performance evaluation program, and are screens related to controlling the heating energy analysis unit of the building energy performance evaluation apparatus.

In FIG. 13, as a result of the analysis as described above, the annual total indoor heat acquisition amount 1301, the temperature rise value 302 by indoor heat acquisition, the heating degree 303, the heating energy use amounts 1303 and 1304, and the unit It shows that the heating energy consumption (1305, 1306) and the like per area are displayed, and Fig. 14 shows that the analysis results are displayed by the hourly or monthly load graph. When the hourly graph button 1401 or the monthly graph 1402 is input by inputting the time range on the left side, the hourly or monthly load graph is displayed.

15A to 15E are diagrams illustrating a building energy performance evaluation report generated by the building energy performance evaluation apparatus according to an embodiment of the present invention.

According to the building energy performance evaluation apparatus or the building energy performance evaluation program according to an embodiment of the present invention, the building energy performance evaluation result may be prepared in the form of a report, and such building energy performance evaluation report is shown in FIGS. 15A to 15E. It may be in the format shown. 15A and 15C illustrate an example of a report on a building energy performance evaluation applied house, and FIGS. 15D and 15E illustrate an example of a report on a standard house to be compared with the applied house.

The generated report may be generated in an Excel format of Microsoft Office, an MS word format, or a PDF format of Adobe's Acrobat reader.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken as limitations. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

101: basic information input unit 102: jacket heat loss calculation unit
103: ventilation heat loss calculation unit 104: heat loss coefficient calculation unit
105: indoor heat acquisition amount calculation unit 106: solar heat acquisition amount calculation unit
107: heating diagram calculation unit 108: heating energy analysis unit
109: addition reduction rate calculation unit

Claims (18)

An envelope heat loss calculation unit configured to calculate an envelope heat loss amount through a building envelope;
A heat loss coefficient calculating unit configured to calculate a heat loss coefficient using the envelope heat loss amount;
An indoor heat acquisition amount calculation unit configured to calculate an indoor heat acquisition amount due to heat generation in the interior of the building;
A heating degree calculation unit configured to calculate a reference point temperature using the heat loss coefficient and the indoor heat acquisition amount, and calculate a heating degree using the reference point temperature; And
Building energy performance evaluation apparatus comprising a heating energy analysis unit for calculating the amount of heating energy using the energy efficiency of the heating source and the heat source equipment installed in the building and calculating the heating energy saving rate. The method according to claim 1,
Further comprising a ventilation heat loss calculation unit for calculating the ventilation heat loss due to the ventilation in the building,
The heat loss coefficient calculation unit,
And a heat loss coefficient is calculated using the sheath heat loss amount and the ventilation heat loss amount. The method according to claim 1,
Further comprising a solar heat acquisition amount calculation unit for calculating the solar heat acquisition amount by the solar radiation energy inflow through the window of the building,
The heating degree calculation unit,
And a reference point temperature is calculated using the heat loss coefficient, an indoor heat acquisition amount, and a solar heat acquisition amount, and a heating degree is calculated using the reference point temperature. The method according to claim 1,
The outer heat loss calculation unit,
Calculating heat permeability of the skin of the building using information relating to at least one of constituent material, thermal performance value, thickness, area, and additional insulation of the skin of the building and calculating the heat loss of the skin using the heat permeability. A building energy performance evaluation device characterized by the above-mentioned. The method according to claim 1,
The outer heat loss calculation unit,
Building energy performance evaluation apparatus, characterized in that for calculating the heat loss through at least one of the outer wall, window, door, roof and floor of the building to calculate the heat loss. The method according to claim 1,
The indoor heat acquisition amount calculation unit,
Building energy performance evaluation apparatus, characterized in that for calculating the indoor heat acquisition amount using the heat generation of the human body corresponding to the area of the building and the heat generation of the indoor electronic device. The method according to claim 3,
The solar heat acquisition amount calculation unit,
Building energy performance evaluation apparatus, characterized in that for calculating the amount of solar heat obtained using information relating to one or more of the direction, area, shielding coefficient and shade of the window of the building. The method according to claim 1,
Building energy performance evaluation further comprising a basic information input unit for inputting the basic information of the building including information related to one or more of the address, area, direction, year of completion, number of floors, floor-by-floor ceiling and floor area of the building. Device. The method according to claim 1,
If there is an item that can further reduce the heating energy in the building further includes an addition reduction rate setting unit for setting the corresponding item and the addition reduction rate corresponding to the corresponding item,
The heating energy analysis unit,
Building energy performance evaluation apparatus, characterized in that for calculating the heating energy savings rate by applying the addition reduction rate. Calculating a sheath heat loss through the sheath of the building;
Calculating a heat loss coefficient using the envelope heat loss amount;
Calculating an indoor heat acquisition amount due to heat generation in the interior of the building;
Calculating a reference point temperature using the heat loss coefficient and the room heat acquisition amount;
Calculating a heating degree using the reference point temperature; And
And calculating a heating energy consumption and calculating a heating energy saving rate using the energy efficiency of the heating coil and the heat source equipment installed in the building. The method of claim 10,
Calculating a ventilation heat loss amount due to the ventilation in the building,
Computing the heat loss coefficient,
And calculating a heat loss coefficient using the sheath heat loss amount and the ventilation heat loss amount. The method of claim 10,
Computing the amount of solar heat obtained by the solar radiation energy inflow through the window of the building,
Computing the reference point temperature,
And calculating a reference point temperature using the heat loss coefficient, the indoor heat acquisition amount, and the solar heat acquisition amount. The method of claim 10,
The step of calculating the sheath heat loss amount,
Calculating heat permeability of the building envelope using information relating to one or more of components, thermal performance values, thickness, area, and additional insulation of the building envelope; And
And calculating the sheath heat loss using the heat permeation rate. The method of claim 10,
The step of calculating the sheath heat loss amount,
And calculating the amount of heat loss through at least one of an outer wall, a window, a door, a roof, and a floor of the building, to calculate the amount of heat loss of the envelope. The method of claim 10,
Computing the indoor heat acquisition amount,
And calculating the indoor heat acquisition amount by using the calorific value of the human body and the calorific value of the indoor electronic device corresponding to the area of the building. The method of claim 11,
Calculating the solar heat acquisition amount,
And calculating the amount of solar heat gained using information relating to one or more of the direction, area, shielding coefficient, and shade shape of the window of the building. The method of claim 10,
And inputting basic information of the building including information related to at least one of the address, area, direction, year of completion, number of floors, floor-by-floor ceiling, and floor area of the building. The method of claim 10,
If there is an item to further reduce the heating energy in the building further comprises the step of setting the corresponding item and the addition reduction rate corresponding to the corresponding item,
Calculating the heating energy saving rate,
And calculating the heating energy saving rate by applying the addition reduction rate.

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