Low-carbon design method for building external window components in severe cold and cold regions

Abstract

The invention relates to a low-carbon design method for building external window components in severe cold and cold regions, and belongs to the field of external window component design. The low-carbon design method comprises the specific steps that S1, a building operation stage carbon emission accounting boundary related to the building external window components is delimited; s2, constructing a carbon emission index system related to the external window in a building operation stage; s3, establishing a carbon emission measurement and calculation model related to the external window in the building operation stage; s4, the influence of the building external window on the building carbon emission in the building operation stage is evaluated; and S5, optimizing the window opening form of the building to reduce carbon emission in the operation stage of the building. According to the method, a brand new design thought is provided for architects to design the building facade, windowing of the building facade is more scientific and reasonable, the building facade optimized through the method reduces dependence of buildings on traditional energy, and carbon emission of the buildings is better reduced.

Description

Technical Field

[0001] The present invention belongs to the field of exterior window component design, and particularly relates to a low-carbon design method and a construction regulation method for exterior window components of buildings in severe cold and cold regions. Background Art

[0002] Low-carbon design is a design practice aimed at reducing human carbon emissions and mitigating the greenhouse effect. By integrating environmental protection concepts and technological innovation, it achieves low energy consumption, low pollution, and low emissions throughout the entire life cycle of a product (including manufacturing, storage and transportation, consumption, recycling, etc.), and incorporates the low-carbon principle into daily life to promote the harmonious coexistence of humans and nature.

[0003] As a key part of the building envelope structure, the energy consumption of exterior windows accounts for 50% of the total energy consumption of the envelope structure and 25% of the total building energy consumption, making it a core link in building energy conservation renovation. Summary of the Invention

[0004] To solve the above technical problems, the present invention proposes a low-carbon design method for exterior window components of buildings in severe cold and cold regions. The method of the present invention provides a new design idea for architects to design building facades, making the window openings on the building facade more scientific and reasonable. The building facade optimized by the method of the present invention reduces the building's dependence on traditional energy and is more conducive to reducing building carbon emissions.

[0005] The technical solution protected by the present invention is: a low-carbon design method for exterior window components of buildings in severe cold and cold regions, which is carried out according to the following steps:

[0006] Step S1: Define the carbon emission accounting boundary related to the building operation stage of the exterior window components of the building;

[0007] Step S2: Construct a carbon emission index system related to the exterior window during the building operation stage: Screen the various performance indicators of the exterior window components of the building, summarize the carbon emission indicators related to the exterior window during the building operation stage among them, and establish a carbon emission index system related to the exterior window during the building operation stage;

[0008] Step S3: Establish a carbon emission measurement model related to the exterior window during the building operation stage;

[0009] Step S4: Evaluate the impact of the building exterior window on the building's carbon emissions during the building operation stage: Based on the carbon emission measurement model, calculate the building's carbon emissions C related to the performance of the building exterior window during the building operation stage; when C is zero or negative, it indicates that the setting scheme is reasonable; when C is positive, the setting scheme is not optimal for reducing building carbon emissions, and then enter Step S5;

[0010] Step S5. Optimize the window opening form of the building to reduce carbon emissions during the building operation stage: Optimize and adjust the performance indicators of the building's exterior windows according to the carbon emission index system related to the exterior windows during the building operation stage established in Step S2, and recalculate the energy consumption and carbon emissions of this part of the building according to the carbon emission measurement model related to the exterior windows during the building operation stage built in Step S3 until the C value is negative or close to zero.

[0011] Further, in Step S1, the carbon emission accounting boundary is divided according to the winter condition and the summer condition:

[0012] The energy consumption of the building's exterior windows and the building carbon emissions caused by this part of the energy consumption during the winter heating condition include: the heat gain of the building through the radiation of the building's exterior windows and the heat loss of the building through the heat conduction of the building's exterior windows.

[0013] The energy consumption of the building's exterior windows and the building carbon emissions caused by this part of the energy consumption during the summer air-conditioning condition include: the heat gain of the building through the radiation of the building's exterior windows and the increased cooling load due to the heat gain of the building through the heat conduction of the building's exterior windows.

[0014] Further, the carbon emission index system related to the exterior windows during the building operation stage in Step S2 specifically includes: the area of the building's exterior windows in each orientation of the building, the heat transfer coefficient of the building's exterior windows, the solar heat gain coefficient of the building's exterior windows, and the building shading coefficient.

[0015] Further, the specific calculation process of the carbon emission measurement model in Step S3 is as follows:

[0016] Step S31. Determine the building zoning and determine the total number of days of building winter heating and the number of days of summer air-conditioning use;

[0017] Step S32. Under the winter condition, calculate the comprehensive energy consumption of the building after the heat gain through the solar radiation of the exterior windows and the heat loss through heat conduction, and the carbon emissions caused by this part of the energy consumption:

[0018] The total heat gain through the solar radiation of the building's exterior windows in each orientation during the building heating season is calculated according to the following formula:

[0019] Q 冬季1 =Q 南向 +Q 东向 +Q 西向 +Q 北向

[0020] Among them, Q 南向 is the total heat gain through the solar radiation of the building's south-facing exterior windows during the building heating season, which is calculated according to the following formula. The calculation method of the solar radiation heat gain of the exterior windows in other orientations is the same as this;

[0021]

[0022] Among them, Q iThe total solar radiation heat gain of the south-facing outer windows of the building at each time period on the i-th day is calculated according to the following formula:

[0023]

[0024] Among them, Q j is the solar radiation heat gain of the south-facing outer windows of the building at the j-th time period of each time period on the i-th day, and is calculated according to the following formula:

[0025] Q j = SHGC × A 南向 × I j × 1 hour / 1000

[0026] Among them, SHGC is the solar radiation heat gain coefficient of the building's outer windows; A 南向 The south-facing area is the area of the south-facing windows of the building; I j is the solar radiation intensity at the j-th time for each south-facing direction;

[0027] The total heat loss through the outer windows of the building in each orientation during the building's heating season is calculated according to the following formula

[0028]

[0029] Q h is the total heat loss through the outer windows of the building from 1:00 to 24:00 on the h-th day of the building's heating season, and is calculated according to the following formula:

[0030]

[0031] Q k The heat loss through the outer windows of the building at the k-th hour on the h-th day of the building's heating season is calculated according to the following formula

[0032] Q k = U × A 总 (T kin - T kout ) × 1 hour / 1000

[0033] Among them, U is the heat transfer coefficient of the building's outer windows; A 总 is the total area of the windows in each orientation of the building; T kout is the outdoor air temperature at the k-th hour on the h-th day of the building's heating season; T kin is the indoor air temperature at the k-th hour on the h-th day of the building's heating season;

[0034] During the winter operation period of the building, the carbon emissions of the building through the outer windows of the building are:

[0035] C 冬季 = C2 - C1

[0036]

[0037] Among them: C1 is the carbon emission reduction amount obtained from solar radiation through the external windows of the building in the heating season, C2 is the carbon emission amount from heat conduction loss through the external windows of the building in the heating season, COP is the efficiency of the heating equipment, and EF i is the carbon emission factor of the i-th type of energy;

[0038] Step S33: In the summer condition, calculate the comprehensive energy consumption of the building's external windows after heat gain through solar radiation and conduction, and the carbon emissions caused by this part of the energy consumption;

[0039] Solar radiation heat gain through the external windows of buildings with different orientations:

[0040] Q 夏季1 =Q 南向 +Q 东向 +Q 西向 +Q 北向

[0041] Q 南向 is the total solar radiation heat gain through the south-facing external windows of the building in summer, calculated according to the following formula. The calculation method of solar radiation heat gain through external windows in other orientations is the same:

[0042]

[0043] Among them, Q i is the total solar radiation heat gain of the south-facing external windows of the building at each time period on the i-th day, calculated according to the following formula:

[0044]

[0045] Among them, Q j is the solar radiation heat gain of the south-facing external windows of the building at the j-th hour of each time period on the i-th day, calculated according to the following formula:

[0046] Q j =SHGC×A 南向 ×I j ×1 hour / 1000

[0047] Among them, SHGC is the solar radiation heat gain coefficient of the building's external windows; A 南向 in the south direction is the area of the south-facing windows of the building; I j is the solar radiation intensity at the j-th hour in the south direction;

[0048] Heat gain through heat conduction of the building through external windows:

[0049]

[0050] Q l is the total heat gain through heat conduction of the building's external windows from 1 o'clock to 24 o'clock on the l-th day when the building's air conditioner is turned on, calculated according to the following formula:

[0051]

[0052] Q m The heat gain through the thermal conduction of the building's exterior windows at the m-th hour on the l-th day when the building air conditioner is turned on is calculated according to the following formula

[0053] Q m =U×A 总 (T min -T mout )×1 hour / 1000

[0054] U is the heat transfer coefficient of the building's exterior windows, and A 总 is the total area of the windows in each orientation of the building. T mout is the outdoor air temperature at the m-th hour on the l-th day when the building air conditioner is turned on; T min is the indoor air temperature at the m-th hour on the l-th day when the building air conditioner is turned on;

[0055] Carbon emission situation:

[0056] C 夏季 =C3 + C4

[0057]

[0058] Among them, C3 is the carbon emission of the heat gain from solar radiation through the exterior windows of different orientations of the building in summer, C4 is the carbon emission of the heat gain from the thermal conduction through the exterior windows of each orientation of the building in summer, COP is the efficiency of the heating equipment, and EF i is the carbon emission factor of the i-th type of energy.

[0059] The present invention has the following advantages compared with the prior art.

[0060] 1. Data-driven facade optimization design

[0061] The present invention breaks through the limitations of the traditional symmetric facade design and scientifically adjusts the window opening strategy based on the carbon emission model. For example, in a certain project, the north-south symmetric window opening was originally adopted, but the thermal simulation showed that the heat loss of the north-facing window was large in winter, resulting in a high carbon emission. After optimizing the north-facing window area by the present invention, the carbon emission was significantly reduced, providing a more accurate energy-saving basis for the building facade design.

[0062] 2. Dynamically adjust the solar radiation utilization efficiency

[0063] Traditional exterior window designs of buildings often fail to balance the energy demands of winter and summer. However, through the optimization of the exterior window form and thermal performance, the present invention achieves the efficient utilization of solar radiation. In winter, by reasonably designing the window orientation and light transmission performance, the absorption of solar radiation heat energy is maximized, reducing heating energy consumption. In summer, by adjusting the shading coefficient and window structure, excessive solar radiation is effectively blocked, reducing the cooling load. This dynamic balance strategy not only improves the comfort of the indoor environment but also significantly reduces the building's dependence on traditional energy sources.

[0064] 3. Optimizing construction costs through a differential window selection strategy

[0065] Traditional building designs usually adopt uniform exterior window thermal parameters, ignoring the energy consumption differences in different orientations, resulting in unnecessary cost waste. The present invention innovatively proposes a differential window selection method based on orientation. By precisely matching the heat transfer coefficient and shading coefficient, the north-facing windows focus on insulation performance, while the south-facing windows focus on the balance between shading and heat gain. This optimization strategy effectively reduces the initial investment cost of the window system while ensuring the building's energy-saving effect. Description of the Drawings

[0066] The following further elaborates on the present invention in conjunction with the drawings.

[0067] Figure 1 It is a flowchart of the method of the present invention.

[0068] Figure 2 It is a table of carbon emission index system indicators related to exterior windows during the building operation stage. Specific Embodiments

[0069] To make the objectives, features, and advantages of the present invention clearly understandable, the following elaborates on the specific embodiments of the present invention in conjunction with the drawings.

[0070] As Figure 1 shown, a low-carbon design method for exterior window components of buildings in severe cold and cold regions is carried out according to the following steps:

[0071] Step S1: Define the carbon emission accounting boundary related to exterior window components during the building operation stage;

[0072] During the winter heating condition, the energy consumption of the exterior windows of the building and the building carbon emissions caused by this part of the energy consumption. The building energy consumption related to the exterior window components at this stage also includes the heat gain through the exterior windows of the building and the heat loss through the exterior windows of the building by heat conduction.

[0073] During the summer air-conditioning operation condition, the energy consumption of the exterior windows of the building and the building carbon emissions caused by this part of the energy consumption. The building energy consumption related to the exterior window components at this stage also includes the heat gain through the exterior windows of the building and the increased cooling load due to the heat gain through the exterior windows of the building by heat conduction.

[0074] Step S2: Construct a carbon emission index system related to exterior windows during the building operation stage.

[0075] Constructing a carbon emission index system related to exterior windows during the building operation stage is to sort and screen the various performance indicators of building exterior window components, summarize the carbon emission indicators related to exterior windows during the building operation stage, and establish a carbon emission index system related to exterior windows during the building operation stage (as Figure 2 shown). Specifically, it includes:

[0076] The area of building exterior windows in each orientation of the building: Increase the area of south-facing exterior windows of the building, reduce the area of north-facing exterior windows of the building, and optimize the area of east- and west-facing exterior windows of the building.

[0077] The heat transfer coefficient of building exterior windows: Appropriately reduce the heat transfer coefficient of building exterior windows.

[0078] The solar heat gain coefficient of building exterior windows: When selecting building exterior windows in accordance with relevant code requirements, limit the solar heat gain coefficient of building exterior windows.

[0079] The shading coefficient of the building: Optimize the shading coefficient of exterior windows in each orientation of the building according to the characteristics of the climate zone where the building is located, and set up building exterior shading when necessary.

[0080] In traditional building design methods, the thermal performance of building exterior windows in each orientation of the building is the same. However, in the carbon emission index system related to exterior windows during the building operation stage constructed by the present invention, the orientation is divided into four different directions, and the heat transfer coefficient and shading coefficient of building exterior windows are selected according to different building orientations, which is beneficial to reducing the overall investment of the building.

[0081] Step S3: Establish a carbon emission measurement model related to exterior windows during the building operation stage;

[0082] Step S31: Determine the building zoning and determine the total number of days of winter heating and the number of days of summer air conditioning use in the building;

[0083] Step S32: Under winter conditions, calculate the comprehensive energy consumption of the building after obtaining heat through solar radiation and losing heat through heat conduction through the exterior windows, as well as the carbon emissions caused by this part of the energy consumption:

[0084] The total amount of heat obtained through solar radiation through the exterior windows in each orientation of the building during the heating season is calculated according to the following formula:

[0085] Q 冬季1 =Q 南向 +Q 东向 +Q 西向 +Q 北向

[0086] where Q 南向The total solar radiation heat gain through the south-facing exterior windows of a building during the building heating season is calculated according to the following formula. The calculation method for the solar radiation heat gain through the exterior windows of other orientations is the same as this;

[0087]

[0088] Among them, Q i The total solar radiation heat gain through the south-facing exterior windows of the building at each time period on the i-th day of the building heating season is calculated according to the following formula:

[0089]

[0090] Among them, Q j Is the solar radiation heat gain at the j-th hour of each time period of the south-facing exterior windows of the building on the i-th day of the building heating season, and is calculated according to the following formula:

[0091] Q j = SHGC × A 南向 × I j × 1 hour / 1000

[0092] Among them, SHGC is the solar radiation heat gain coefficient of the building exterior window; A 南向 The south direction is the area of the south-facing windows of the building; I j Is the solar radiation intensity at the j-th hour of each south direction;

[0093] The total heat loss through heat conduction of the building exterior windows in each orientation during the building heating season is calculated according to the following formula:

[0094]

[0095] Q h Is the total heat loss through heat conduction of the building exterior windows from 1 o'clock to 24 o'clock on the h-th day of the building heating season, and is calculated according to the following formula:

[0096]

[0097] Q k The heat loss through heat conduction of the building exterior windows at the k-th hour on the h-th day of the building heating season is calculated according to the following formula

[0098] Q k = U × A 总 (T kin - T kout ) × 1 hour / 1000

[0099] Among them, U is the heat transfer coefficient of the building exterior window; A 总 Is the total area of the windows in each orientation of the building; T kout The outdoor air temperature at the k-th hour on the h-th day of the building heating season; T kin The indoor air temperature at the k-th hour on the h-th day of the building heating season;

[0100] During the winter operation period of the building, the carbon emissions through the building's exterior windows are as follows:

[0101] C 冬季 = C2 - C1

[0102]

[0103] Where: C1 is the carbon emission reduction amount due to the solar radiation heat gain through the exterior windows of each orientation of the building during the heating season, C2 is the carbon emission amount due to the heat conduction heat loss through the exterior windows of each orientation of the building during the heating season, COP is the efficiency of the heating equipment, and EF i is the carbon emission factor of the i-th type of energy;

[0104] Step S33: In the summer operation period, calculate the comprehensive energy consumption after the heat gain through solar radiation and conduction of the building's exterior windows, and the carbon emissions caused by this part of the energy consumption;

[0105] The solar radiation heat gain through the exterior windows of buildings with different orientations:

[0106] Q 夏季1 = Q 南向 + Q 东向 + Q 西向 + Q 北向

[0107] Q 南向 is the total solar radiation heat gain through the south-facing exterior windows of the building in summer, with the unit of kWh, and is calculated according to the following formula:

[0108]

[0109] Where, Q i is the total solar radiation heat gain of the south-facing exterior windows of the building at each time period on the i-th day, and is calculated according to the following formula:

[0110]

[0111] Where, Q j is the solar radiation heat gain of the south-facing exterior windows of the building at the j-th hour of each time period on the i-th day, and is calculated according to the following formula:

[0112] Q j = SHGC × A 南向 × I j × 1 hour / 1000

[0113] Where, SHGC is the solar radiation heat gain coefficient of the building's exterior windows; A 南向 is the area of the south-facing windows of the building; I j is the solar radiation intensity at the j-th hour of each south-facing direction;

[0114] The heat gain through the heat conduction of the building through the exterior windows:

[0115]

[0116] Q l The total heat gain through the thermal conduction of the building's exterior windows from 1:00 to 24:00 on the first day when the building air conditioner is turned on is calculated according to the following formula:

[0117]

[0118] Q m The heat gain through the thermal conduction of the building's exterior windows at the m-th hour on the first day when the building air conditioner is turned on is calculated according to the following formula

[0119] Q m = U × A 总 (T min - T mout ) × 1 hour / 1000

[0120] U is the heat transfer coefficient of the building's exterior windows, and A 总 is the total area of the windows in each orientation of the building. T mout is the outdoor air temperature at the m-th hour on the first day when the building air conditioner is turned on; T min is the indoor air temperature at the m-th hour on the first day when the building air conditioner is turned on;

[0121] Carbon emission situation:

[0122] C 夏季 = C3 + C4

[0123]

[0124] Among them, C3 is the carbon emission of the solar radiation heat gain through the exterior windows of different orientations of the building in summer, C4 is the carbon emission of the heat gain through the thermal conduction of the exterior windows of each orientation of the building in summer, COP is the efficiency of the heating equipment, and EF i is the carbon emission factor of the i-th type of energy.

[0125] Step S4. Evaluate the impact of the building's exterior windows on the building's carbon emissions during the building operation stage: Based on the carbon emission measurement model, calculate the building's carbon emissions C related to the performance of the building's exterior windows during the building operation stage; when C is zero or negative, it indicates that the setting scheme is reasonable; when C is positive, the setting scheme is not optimal for reducing the building's carbon emissions, and then enter Step S5;

[0126] Step S5. Optimize the window opening form of the building to reduce the carbon emissions during the building operation stage: Optimize and adjust the performance indicators of the building's exterior windows according to the carbon emission index system related to the exterior windows during the building operation stage established in Step S2, and re-account the energy consumption and carbon emissions of this part of the building according to the carbon emission measurement model related to the exterior windows during the building operation stage built in Step S3 until the C value is negative or close to zero.

[0127] Archive the building exterior window design solutions with negative or near-zero carbon emissions related to the building operation stage and apply them to the overall building design solution.

[0128] The present invention provides a brand-new design concept for architects to design building facades, making the window openings on the building facades more scientific and reasonable. Taking the design of a certain building facade as an example, the original design is a north-south symmetrical facade design, that is, the sizes and areas of the window openings on the north and south building facades are the same. After establishing a carbon emission model, due to the large heat conduction heat consumption of the exterior windows on the north side of the building in winter, the building carbon emissions are relatively high. After adopting the method of the present invention, the window opening area on the north facade of the building is optimized, greatly reducing the building carbon emissions and providing a more scientific and reasonable design basis for the window openings on the building facades.

[0129] The embodiments of the solution of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A low-carbon design method for building exterior window components in severe cold and cold regions, characterized in that: Proceed as follows: Step S1: Define the carbon emission accounting boundary for the building operation stage related to the building exterior window components; Step S2: Construct a carbon emission index system related to the exterior window during the building operation stage: Screen the performance indicators of the building exterior window components, summarize the carbon emission indicators related to the exterior window during the building operation stage, and establish a carbon emission index system related to the exterior window during the building operation stage; Step S3: Establish a carbon emission measurement model related to the exterior window during the building operation stage; Step S4: Evaluate the impact of the building exterior window on the building carbon emissions during the building operation stage: Based on the carbon emission measurement model, calculate the building carbon emissions C related to the performance of the building exterior window during the building operation stage; When C is zero or negative, it indicates that the setting plan is reasonable; when C is positive, the setting plan is not optimal for reducing building carbon emissions, and then enter Step S5; Step S5: Optimize the building window opening form to reduce carbon emissions during the building operation stage: Optimize and adjust the performance indicators of the building exterior window according to the carbon emission index system related to the exterior window during the building operation stage established in Step S2, and re-account the carbon emissions of this part of the building energy consumption according to the carbon emission measurement model related to the exterior window during the building operation stage built in Step S3 until the C value is negative or close to zero.

2. A low-carbon design method for building exterior window components in severe cold and cold regions according to claim 1, characterized in that: In Step S1, the carbon emission accounting boundary is divided according to winter conditions and summer conditions: The energy consumption of the building exterior window and the building carbon emissions caused by this part of the energy consumption under the winter heating condition include: the heat gain of the building through the building exterior window by radiation, and the heat loss of the building through the building exterior window by heat conduction. The energy consumption of the building exterior window and the building carbon emissions caused by this part of the energy consumption under the summer air-conditioning condition include: the heat gain of the building through the building exterior window by radiation, and the increased cooling load due to the heat gain of the building through the building exterior window by heat conduction.

3. A low-carbon design method for building exterior window components in severe cold and cold regions according to claim 2, characterized in that: The carbon emission index system related to the exterior window during the building operation stage in Step S2 specifically includes: the area of the building exterior window in each orientation of the building, the heat transfer coefficient of the building exterior window, the solar heat gain coefficient of the building exterior window, and the building shading coefficient.

4. A low-carbon design method for building exterior window components in severe cold and cold regions according to claim 3, characterized in that: The specific calculation process of the carbon emission measurement model in Step S3 is as follows: Step S31: Determine the building division and determine the total number of days of winter heating and the number of days of summer air-conditioning use in the building; Step S32: Under the winter condition, calculate the comprehensive energy consumption after the building gains heat through the exterior window by solar radiation and loses heat by heat conduction, and the carbon emissions caused by this part of the energy consumption: The total heat gain of the building through the exterior windows in each orientation during the building heating season is calculated according to the following formula: Q 冬季1 = Q 南向 + Q 东向 + Q 西向 + Q 北向 Among them, Q 南向 is the total solar radiation heat gain through the south-facing exterior window of the building during the building heating season, which is calculated according to the following formula. The calculation method of the solar radiation heat gain through the exterior windows of other orientations is the same as this; Among them, Q i The total solar radiation heat gain of the south-facing outer windows of the building at each time period on the ith day is calculated according to the following formula: Among them, Q j is the solar radiation heat gain of the south-facing exterior window of the building at each time period of the i-th day and the j-th hour, and is calculated according to the following formula: Q j = SHGC × A 南向 × I j × 1 hour / 1000 Among them, SHGC is the solar heat gain coefficient of the building's exterior window; A 南向 The south-facing area is the area of the south-facing windows of the building; I j is the solar radiation intensity at the j-th hour in the south direction; The total heat loss of the building through the exterior windows in each orientation during the building heating season is calculated according to the following formula Q h The total heat loss through the building's exterior windows from 1:00 to 24:00 on the h-th day of building heating is calculated according to the following formula: Q k The heat loss through heat conduction of the building's outer window at the k-th hour on the h-th day of building heating is calculated according to the following formula Q k = U × A 总 (T kin - T kout ) × 1 hour / 1000 Among them, U is the heat transfer coefficient of the building's exterior windows; A 总 is the total area of the windows in each orientation of the building; T kout is the outdoor air temperature at the k-th hour on the h-th day of building heating; T kin is the indoor air temperature at the k-th hour on the h-th day of building heating; During the winter condition of the building operation stage, the carbon emissions of the building through the building exterior window are: C 冬季 = C2 - C1 Among them: C1 is the carbon emission reduction amount obtained from solar radiation through the external windows of each facade of the building during the building heating season, C2 is the carbon emission amount lost through heat conduction through the external windows of each facade of the building during the building heating season, COP is the efficiency of the heating equipment, and EF i The carbon emission factor of the i-th type of energy; Step S33: Under the summer condition, calculate the comprehensive energy consumption after the building exterior window gains heat through solar radiation and conduction, and the carbon emissions caused by this part of the energy consumption; The solar radiation heat gain of the building through the exterior window in different orientations: Q 夏季1 = Q 南向 + Q 东向 + Q 西向 + Q 北向 Q 南向 It is the total solar radiation heat gain through the south-facing exterior windows of the building in summer, which is calculated according to the following formula. The calculation method for the solar radiation heat gain of the exterior windows in other orientations is the same as this: Among them, Q i is the total solar radiation heat gain of the south-facing exterior windows of the building in each time period on the i-th day, and is calculated according to the following formula: Among them, Q j is the solar radiation heat gain of the south-facing outer window of the building at the j-th hour of each period on the i-th day, and is calculated according to the following formula: Q j = SHGC × A 南向 × I j × 1 hour / 1000 Among them, SHGC is the solar heat gain coefficient of the building's exterior window; A 南向 The south-facing area is the area of the south-facing windows of the building; I j is the solar radiation intensity at the j-th hour in the south direction; The heat gain of the building through the exterior window by heat conduction: Q l The total heat gain through the building's exterior windows from 1:00 to 24:00 on the first day when the building air conditioner is turned on is calculated according to the following formula: Q m The heat gain through the building's exterior windows by heat conduction at the m-th hour on the l-th day when the building air conditioner is turned on is calculated according to the following formula Q m = U × A 总 (T min - T mout ) × 1 hour / 1000 U is the heat transfer coefficient of the building's exterior windows, A 总 is the total window area of each orientation of the building, T mout outdoor air temperature at the m-th hour on the l-th day when the building's air conditioner is turned on; T min indoor air temperature at the m-th hour on the l-th day when the building's air conditioner is turned on; Carbon emission situation: C 夏季 = C3 + C4 Among them, C3 is the carbon emission of heat gain through solar radiation of the exterior windows with different orientations of the building in summer, C4 is the carbon emission of heat gain through heat conduction of the exterior windows with different orientations of the building in summer, COP is the efficiency of the heating equipment, and EF i is the carbon emission factor of the i-th type of energy.

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