Some standard content:
Engineering construction standard full text information system
Industry standard of the People's Republic of China
Energy conservation design standard for new heating residential buildings JGJ26-95
1996 North
Engineering construction standard full text information system
. Engineering construction standard full text information system
Industry standard of the People's Republic of China
Energy conservation design standard for new heating residential buildings (part of heating residential buildings)
Energy conservation design standard fornewheatingresidentialbuildingsJGJ26—95
Editor: China Academy of Building ResearchApproval department: Ministry of Construction of the People's Republic of ChinaEffective date: July 1, 1996
1996Beijing
Construction Standard Full Text Information System
. Engineering Construction Standard Full Text Information System
Notice on the release of the industry standard "Energy-saving Design Standard for Civil Buildings (Heating Residential Buildings Part)"
Construction Standard (1995) No. 708
According to the Ministry of Construction [1991] Construction Standard No. 71 According to the requirements of Document No. 8, the "Energy-saving Design Standard for Civil Buildings (Heating Residential Buildings)" edited by the China Academy of Building Research has been reviewed and approved as an industry standard, numbered JGJ26-95, and will be implemented on July 1, 1996. The original ministry standard "Energy-saving Design Standard for Civil Buildings (Heating Residential Buildings)" (JGJ26-86) will be abolished at the same time.
This standard is managed by the China Academy of Building Research, the technical unit responsible for building engineering standards of the Ministry of Construction, and is responsible for its interpretation. This standard is organized and published by the Standard and Quota Research Institute of the Ministry of Construction. Ministry of Construction of the People's Republic of China
December 7, 1995| |tt||Engineering Construction Standards Full-text Information System
Engineering Construction Standards Full-text Information System
Terms and symbols:
Heat consumption index of buildings and coal consumption index for heating Building thermal design
General provisions
Enclosure structure design
5 Heating design
General provisions
5.2 Heating and heating system
Pipeline laying and insulation
Appendix A
Appendix
Appendix C
Related parameters of heating period in major cities and towns across the country and heat consumption index of buildings and coal consumption index for heating·...·.||t t||Correction coefficient of heat transfer coefficient of enclosure structure & value Calculation of average heat transfer coefficient of exterior wall
Appendix D Calculation of area and volume...
Appendix E Explanation of terms used in this standard
Additional explanation
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Engineering Construction Standard Full-text Information System
1 General
1.0.1 In order to implement the national energy conservation policy and reverse the situation of high heating energy consumption and poor thermal environment quality in residential buildings in severe cold and cold areas of my country, this standard is formulated by adopting effective technical measures in building design and heating design to control heating energy consumption within the prescribed level.
1.0.2 This standard is applicable to the thermal engineering and heating energy-saving design of newly built and expanded residential buildings with centralized heating in severe cold and cold areas. For residential buildings with centralized heating, the enclosure structure should be implemented in accordance with this standard. 1.0.3 When designing the thermal engineering and heating energy saving of residential buildings according to this standard, it shall also comply with the provisions of the relevant current national standards and specifications. Engineering Construction Standard Full Text Information System
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2 Terms and Symbols
2.0.1 Outdoor mean air temperature during heating period (t.) outdoor mean air temperature during heating period
The average value of the daily average outdoor temperature within the start and end dates of the heating period 2.0.2 Degree days of heating period (Da) degree days of heating period The temperature difference between the indoor reference temperature of 18℃ and the outdoor average temperature during the heating period, multiplied by the number of days in the heating period, unit ℃·d. 2.0.3 Heating energy consumption (Q) energy consumed for heating The energy consumed for heating of buildings. The heating energy consumption in this standard mainly refers to the heat consumption of buildings and the coal consumption for heating.
2.0.4 Index of heat loss of building (qH) Index of heat loss of building Under the outdoor average temperature during the heating period, in order to maintain the calculated indoor temperature, the heat consumed per unit building area per unit time and required to be supplied by indoor heating equipment, unit wm2.
Index of coal consumption for heating (g) Index of coal consumption for heating
Under the outdoor average temperature during the heating period, in order to maintain the calculated indoor temperature, the amount of standard coal consumed per unit building area in one heating period, unit: kg/m2. 2.0.6 Index of design load for heating of building
Under the outdoor calculated temperature during the heating period, in order to maintain the calculated indoor temperature, the heat required to be supplied by the central heating room or other heating facilities per unit building area within a single meal time, unit W/m2.
2.0.7 Overall heat transfer coefficient of building envelope
The air temperature difference on both sides of the building envelope is, the heat transfer through a single area of the building envelope in unit time, unit: W/(m2·K). 2.0.8 Correction factor for overall heat transfer coefficient of building envelope Building envelopes in different regions and different directions are affected by solar radiation and sky radiation, so that the heat transfer through a unit area of the building envelope in unit time will change when the air temperature difference on both sides is the same 1K. The ratio of this changed heat transfer to the original heat transfer not affected by solar radiation and sky radiation is the correction coefficient of the heat transfer coefficient of the building envelope.
2.0.9 Shape coefficient of building (s) shape coefficient of building The ratio of the surface area of the building in contact with the outdoor atmosphere to the volume it encloses. The surface area does not include the area of the ground and the partition walls and doors of unheated stairs. 2.0.10 Window to wall area ratio The ratio of the window opening area to the unit area of the room facade (i.e. the area enclosed by the building floor height and the bay positioning line).
2.0.1h Heating system heating system A system composed of boiler units, outdoor pipe networks, indoor pipe networks and radiators. 2.0.1b Boiler unit capacity capacity of boiler plant It is called rated output. The output marked on the boiler nameplate, unit: MW. 2.0.13 Boiler efficiency boiler refficiency The ratio of the heat generated by the boiler that can be effectively utilized to the heat contained in the coal it burns. Under different conditions, it can be divided into boiler nameplate efficiency and operating efficiency. 2.0.1 Rated efficiency is the efficiency of the boiler under design conditions. 2.0.15 Boiler operating efficiency (n2) rating of boiler refficiency The efficiency of the tin furnace under actual operating conditions
2.0.16 Heat transfer efficiency of outdoor heating network (n) The ratio of the total heat output of the network (the total heat input minus the heat loss of each section) to the total heat input of the network.
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2.0.17EHR value ratioofelectricityconsumptiontotransferiedheatquantity
The ratio of the theoretical daily water pump transmission power consumption to the daily system heat supply under the calculated indoor and outdoor temperature conditions of the heating room. Both take the same unit and are dimensionless. Engineering Construction Standard Full-text Information System
Engineering Construction Standard Full-text Information System
3 Building heat consumption index and heating coal consumption index 3.0.1 Building heat consumption index shall be calculated as follows: ·NFI
Building heat consumption index (W/m2):
Heat consumption per unit building area through the enclosing structure (W/m2);
Heat consumption per unit building area through air infiltration (W/m2); Heat gain inside the building per unit building area (including cooking, lighting, household appliances and human body heat dissipation), for residential buildings, take 3.80W/m2. The heat consumption per unit building area through the heat transfer of the enclosure structure shall be calculated as follows: 3.0.2
F2A.
The average indoor calculated temperature of all rooms, for general residential buildings, is 16℃;
The average outdoor temperature during the heating period (℃) shall be adopted in accordance with Appendix A of this standard;
The correction factor of the heat transfer coefficient of the enclosure structure shall be adopted in accordance with Appendix B of this standard;
The heat transfer coefficient of the enclosure structure [W/(m2·K)], for the exterior wall, the average heat transfer coefficient shall be taken, and the calculation method is shown in Appendix C of this standard; The area of the enclosure structure (m) shall be calculated in accordance with the provisions of Appendix D of this standard, and the
Building area (m2) shall be calculated in accordance with the provisions of Appendix D of this standard. The heat consumption of air infiltration per unit building area shall be calculated as follows: 3.0.3
q NF=(tt.)(C,p. N ·V)/A.
Specific heat capacity of air, take 0.28W·h/(kg·K); air density (kg/m2), take the value under t. Condition; Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Ventilation rate, for residential buildings, take 0.51/h; V
Ventilation volume (m2), which should be calculated according to the provisions of Appendix D of this standard. 3.0.4 Heating coal consumption index should be calculated according to the following formula: qe=24·Z·q/H. ·m·m2
In the formula, 9
Heating coal consumption index (kg/m2) standard coal; building heat consumption index (W/m3);
Number of days in the average heating period () should be based on the standard coal calorific value in Appendix A, Table A of this standard, taking 8.14×10°w·h/kg, outdoor pipe network transmission efficiency, before taking energy-saving measures, take 0.85, after taking energy-saving measures, take 0.90;
-boiler operation efficiency, before taking energy-saving measures, take 0.55, after taking energy-saving measures, take 0.68.
3.0.5Heating heat consumption index and heating coal consumption index of residential buildings in different regions should not exceed the values specified in Appendix A, Table A of this standard. 3.0.6
The insulation of the enclosure structure of residential buildings for heating, such as collective dormitories, guest houses, hotels, and nursery buildings, should reach the same level as local heating residential buildings. Engineering Construction Standard Full Text Information System
bzsoso.cm Engineering Construction Standard Full Text Information System
Building Thermal Design
4.1 General Provisions
4.11 The orientation of the building should be north-south or close to north-south, and the main rooms should avoid the dominant wind direction in winter.
4.1.2 The building shape coefficient should be controlled at 0.30 and below; if the shape coefficient is greater than 0.30, the roof and exterior walls should be strengthened with insulation, and the heat transfer coefficient should comply with the provisions of Table 4.2.1.
4.1.3 Doors and windows should be installed in the stairwells and corridors of heated residential buildings; in areas where the average outdoor temperature is -0.1 to -6.0℃ during the heating period, when the stairwell is not heated, insulation measures should be taken for the stair partition walls and doors; in areas below -6.0℃, the stairwell should be heated, and windproof facilities such as vestibules should be installed at the entrance.
4.2 Design of enclosure structure
4.2.1 The heat transfer coefficient of the enclosure structure of each part of the residential building for heating in the same area shall not exceed the limit value specified in Table 4.2.1.
42.2 When the heat transfer coefficient of the window actually used is 0.5 or more lower than the limit value specified in Table 4.2.1, under the condition of meeting the heat consumption index specified in this standard, the heat transfer coefficient required for the exterior wall and roof can be recalculated according to the method specified in Articles 3.0.1~3.0.3 of this standard.
Engineering Construction Standard Full Text Information System
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Outdoor
Average temperature during heating period (℃)
6. 1~—7. 0
Limit values of heat transfer coefficient of enclosure structures of various parts of residential buildings for heating in different regions [W/(m2·K)] House
Representative cities
Zhengzhou, Luoyang, Baoji, Xuzhou
Xi'an, Lhasa, Jinan, Qingdao, Anyang, Shijiazhuang, Dezhou, Jincheng, Tianshui
Beijing, Tianjin, Dalian, Yangquan, Pingliang, Lanzhou, Taiyuan, Tangshan, Aba, Kashgar, West Ning, Yinchuan, Dandong
Zhangjiakou, Anshan, Jiuquan, Yining, Turpan
Shenyang, Datong, Benxi, Fuxin, Hami, Hohhot, Fushun, Dachaidan
Yanji, Tongliao, Tonghua, Siping
Changchun, Urumqi
Harbin, Mudanjiang, Karamay
-11.0Jiamusi, Anda, Qiqihar, Fujin-12. 0
Hailun, Boktu
Yichun, Huma, Hailar, Manzhouli
Shape system
Shape system
Shape system
Shape system
Number ≤0.3
Unheated stairwell
Window (including
Balcony door
Upper part)
Balcony door
Lower door
Contact with outdoor
Air floor
Unheated
Upper part of room
Note: ①The limit value of heat transfer coefficient of exterior wall in the table refers to the average heat transfer coefficient of exterior wall after considering the influence of surrounding thermal bridge. In some areas, the heat transfer coefficient limit of the exterior wall has two rows of data. The upper row of data corresponds to the heat transfer window, and the lower row of data corresponds to the single-frame double-glazed metal window with a heat transfer coefficient of 4.00. ② In the surrounding ground column of the table, 0.52 is the heat transfer coefficient of the concrete ground without insulation layer located around the building; 0.30 is the heat transfer coefficient of the concrete ground with insulation layer. The heat transfer coefficient of the concrete ground without insulation layer outside the building is the full text information system of the engineering construction standard
bzsoso,com51/h, V
- ventilation volume (m2), shall be calculated according to the provisions of Appendix D of this standard. 3.0.4 The heating coal consumption index shall be calculated according to the following formula: qe=24·Z·q/H. ·m·m2
Wherein 9
Heating coal consumption index (kg/m2) standard coal; building heat consumption index (W/m3);
Number of days in the average warm period () shall be calculated according to Appendix A of this standard, using a standard coal calorific value, taking 8.14×10°w·h/kg, outdoor pipe network transmission efficiency, before taking energy-saving measures, take 0.85, after taking energy-saving measures, take 0.90;
- boiler operation efficiency, before taking energy-saving measures, take 0.55, after taking energy-saving measures, take 0.68.
3.0.5 The heat consumption index and heating coal consumption index of residential buildings for heating in different regions shall not exceed the values specified in Appendix A, Table A of this standard. The insulation of the enclosure structure of residential buildings for heating such as collective dormitories, guest houses, hotels, and nursery buildings shall reach the same level as local residential buildings for heating. Engineering Construction Standard Full Text Information System
bzsoso.cm Engineering Construction Standard Full Text Information System
Building Thermal Engineering Design
4.1 General Provisions
4.11 The orientation of the building should be north-south or close to north-south, and the main rooms should avoid the dominant wind direction in winter.
4.1.2 The shape coefficient of the building should be controlled at or below 0.30; if the shape coefficient is greater than 0.30, the roof and exterior walls should be insulated, and their heat transfer coefficient should comply with the provisions of Table 4.2.1.
4.1.3 Doors and windows shall be installed in stairwells and corridors of heated residential buildings; in areas where the average outdoor temperature is -0.1 to -6.0℃ during the heating period, when the stairwell is not heated, insulation measures shall be taken for stair partition walls and doors; in areas below -6.0℃, stairwells shall be heated, and windproof facilities such as vestibules shall be installed at the entrance.
4.2 Design of enclosure structure
4.2.1 The heat transfer coefficient of each part of the enclosure structure of heated residential buildings in the same area shall not exceed the limit value specified in Table 4.2.1.
42.2 When the heat transfer coefficient of the window actually used is 0.5 or more lower than the limit value specified in Table 4.2.1, under the condition of meeting the heat consumption index specified in this standard, the heat transfer coefficient required for the exterior wall and roof may be recalculated according to the method specified in Articles 3.0.1 to 3.0.3 of this standard.
Engineering Construction Standard Full Text Information System
bzsosO.cOm Engineering Construction Standard Full Text Information System
Outdoor
Average temperature during heating period (℃)
6.1~—7.0
Limit value of heat transfer coefficient of each part of the enclosure structure of residential buildings for heating in different regions [W/(m2·K)] House
Representative cities
Zhengzhou, Luoyang, Baoji, Xuzhou
Xi'an, Lhasa, Jinan, Qingdao, Anyang Shijiazhuang, Dezhou, Jincheng, Tianshui
Beijing, Tianjin, Dalian, Yangquan, Pingliang Lanzhou, Taiyuan, Tangshan, Aba, Kashgar West Ning, Yinchuan, Dandong
Zhangjiakou, Anshan, Jiuquan, Yining, Turpan
Shenyang, Datong, Benxi, Fuxin, Hami, Hohhot, Fushun, Dachaidan
Yanji, Tongliao, Tonghua, Siping
Changchun, Urumqi
Harbin, Mudanjiang, Karamay
-11.0Jiamusi, Anda, Qiqihar, Fujin-12. 0
Hailun, Boktu
Yichun, Huma, Hailar, Manzhouli
Shape system
Shape system
Shape system
Shape system
Number ≤0.3
Unheated stairwell
Window (including
Balcony door
Upper part)
Balcony door
Lower door
Contact with outdoor
Air floor
Unheated
Upper part of room
Note: ①The limit value of heat transfer coefficient of exterior wall in the table refers to the average heat transfer coefficient of exterior wall after considering the influence of surrounding thermal bridge. In some areas, the heat transfer coefficient limit of the exterior wall has two rows of data. The upper row of data corresponds to the heat transfer window, and the lower row of data corresponds to the single-frame double-glazed metal window with a heat transfer coefficient of 4.00. ② In the surrounding ground column of the table, 0.52 is the heat transfer coefficient of the concrete ground without insulation layer located around the building; 0.30 is the heat transfer coefficient of the concrete ground with insulation layer. The heat transfer coefficient of the concrete ground without insulation layer outside the building is the full text information system of the engineering construction standard
bzsoso,com51/h, V
- ventilation volume (m2), shall be calculated according to the provisions of Appendix D of this standard. 3.0.4 The heating coal consumption index shall be calculated according to the following formula: qe=24·Z·q/H. ·m·m2
Wherein 9
Heating coal consumption index (kg/m2) standard coal; building heat consumption index (W/m3);
Number of days in the average warm period () shall be calculated according to Appendix A of this standard, using a standard coal calorific value, taking 8.14×10°w·h/kg, outdoor pipe network transmission efficiency, before taking energy-saving measures, take 0.85, after taking energy-saving measures, take 0.90;
- boiler operation efficiency, before taking energy-saving measures, take 0.55, after taking energy-saving measures, take 0.68.
3.0.5 The heat consumption index and heating coal consumption index of residential buildings for heating in different regions shall not exceed the values specified in Appendix A, Table A of this standard. The insulation of the enclosure structure of residential buildings for heating such as collective dormitories, guest houses, hotels, and nursery buildings shall reach the same level as local residential buildings for heating. Engineering Construction Standard Full Text Information System
bzsoso.cm Engineering Construction Standard Full Text Information System
Building Thermal Engineering Design
4.1 General Provisions
4.11 The orientation of the building should be north-south or close to north-south, and the main rooms should avoid the dominant wind direction in winter.
4.1.2 The shape coefficient of the building should be controlled at or below 0.30; if the shape coefficient is greater than 0.30, the roof and exterior walls should be insulated, and their heat transfer coefficient should comply with the provisions of Table 4.2.1.
4.1.3 Doors and windows shall be installed in staircases and corridors of heated residential buildings; in areas where the average outdoor temperature is -0.1 to -6.0℃ during the heating period, when the staircase is not heated, insulation measures shall be taken for stair partitions and doors; in areas below -6.0℃, the staircase shall be heated, and windproof facilities such as vestibules shall be installed at the entrance.
4.2 Design of enclosure structure
4.2.1 The heat transfer coefficient of each part of the enclosure structure of heated residential buildings in the same area shall not exceed the limit value specified in Table 4.2.1.
42.2 When the heat transfer coefficient of the window actually used is 0.5 or more lower than the limit value specified in Table 4.2.1, under the condition of meeting the heat consumption index specified in this standard, the heat transfer coefficient required for the exterior wall and roof may be recalculated according to the method specified in Articles 3.0.1 to 3.0.3 of this standard.
Engineering Construction Standard Full Text Information System
bzsosO.cOm Engineering Construction Standard Full Text Information System
Outdoor
Average temperature during heating period (℃)
6.1~—7.0
Limit value of heat transfer coefficient of each part of the enclosure structure of residential buildings for heating in different regions [W/(m2·K)] House
Representative cities
Zhengzhou, Luoyang, Baoji, Xuzhou
Xi'an, Lhasa, Jinan, Qingdao, Anyang Shijiazhuang, Dezhou, Jincheng, Tianshui
Beijing, Tianjin, Dalian, Yangquan, Pingliang Lanzhou, Taiyuan, Tangshan, Aba, Kashgar West Ning, Yinchuan, Dandong
Zhangjiakou, Anshan, Jiuquan, Yining, Turpan
Shenyang, Datong, Benxi, Fuxin, Hami, Hohhot, Fushun, Dachaidan
Yanji, Tongliao, Tonghua, Siping
Changchun, Urumqi
Harbin, Mudanjiang, Karamay
-11.0Jiamusi, Anda, Qiqihar, Fujin-12. 0
Hailun, Boktu
Yichun, Huma, Hailar, Manzhouli
Shape system
Shape system
Shape system
Shape system
Number ≤0.3
Unheated stairwell
Window (including
Balcony doorbzxz.net
Upper part)
Balcony door
Lower door
Contact with outdoor
Air floor
Unheated
Upper part of room
Note: ①The limit value of heat transfer coefficient of exterior wall in the table refers to the average heat transfer coefficient of exterior wall after considering the influence of surrounding thermal bridge. In some areas, the heat transfer coefficient limit of the exterior wall has two rows of data. The upper row of data corresponds to the heat transfer window, and the lower row of data corresponds to the single-frame double-glazed metal window with a heat transfer coefficient of 4.00. ② In the surrounding ground column of the table, 0.52 is the heat transfer coefficient of the concrete ground without insulation layer located around the building; 0.30 is the heat transfer coefficient of the concrete ground with insulation layer. The heat transfer coefficient of the concrete ground without insulation layer outside the building is the full text information system of the engineering construction standard
bzsoso,com3
Unheated staircase
Window (including
Balcony door
Upper part)
Balcony door
Lower door
Contact with outdoor
Air floor
Unheated
Upper part of room
Note: ①The heat transfer coefficient limit of the exterior wall in the table refers to the average heat transfer coefficient of the exterior wall after considering the influence of the surrounding thermal bridge. In some areas, the heat transfer coefficient limit of the exterior wall has two rows of data, the upper row of data corresponds to the heat transfer window, and the lower row of data corresponds to the single-frame double-glazed metal window with a heat transfer coefficient of 4.00. ②In the surrounding ground column in the table, 0.52 is the heat transfer coefficient of the concrete ground without insulation layer located around the building; 0.30 is the heat transfer coefficient of the concrete ground with insulation layer. Heat transfer coefficient of concrete floor without insulation layer outside the perimeter of the building Engineering construction standard Full text information system
bzsoso,com3
Unheated staircase
Window (including
Balcony door
Upper part)
Balcony door
Lower door
Contact with outdoor
Air floor
Unheated
Upper part of room
Note: ①The heat transfer coefficient limit of the exterior wall in the table refers to the average heat transfer coefficient of the exterior wall after considering the influence of the surrounding thermal bridge. In some areas, the heat transfer coefficient limit of the exterior wall has two rows of data, the upper row of data corresponds to the heat transfer window, and the lower row of data corresponds to the single-frame double-glazed metal window with a heat transfer coefficient of 4.00. ②In the surrounding ground column in the table, 0.52 is the heat transfer coefficient of the concrete ground without insulation layer located around the building; 0.30 is the heat transfer coefficient of the concrete ground with insulation layer. Heat transfer coefficient of concrete floor without insulation layer outside the perimeter of the building Engineering construction standard Full text information system
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