Applicability analysis of the hottest energy-savin

2022-08-13
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Applicability analysis of energy-saving glass to energy-saving standards of residential buildings

on April 1, 2008, the energy conservation law was fully implemented, and building energy conservation, as an important promotion object of the energy conservation law, has attracted much attention. At present, China's building energy consumption has exceeded 1/4 of the total national energy consumption, and will gradually increase to more than 1/3 with the improvement of people's living standards. Building energy consumption has become a major problem affecting the overall social and economic development. China's energy-saving design standards for public buildings have been implemented since 2005, and residential buildings are also the key and focus of building energy efficiency. Among residential buildings, the energy consumption of residential buildings in the north is much higher than that in the south, and CFRP is a difficult to process material. However, due to the complex building structure, different forms of heating system and uneven energy consumption level in the northern heating area, the task of energy-saving transformation is large. Therefore, the energy conservation of existing and new residential buildings in the North has become the focus and difficulty of energy conservation research. At present, the central heating area in northern China is more than 2 billion square meters, and the heating energy consumption accounts for more than 20% of the local energy consumption of the whole society, which is the largest component of building energy consumption

among the four envelope components of doors and windows, walls, roofs and floors that affect building energy consumption, the thermal insulation performance of doors and windows is the worst, which is one of the main factors affecting indoor thermal environment quality and building energy conservation. As for the typical building envelope components in China, the energy consumption of doors and windows accounts for about 40% - 50% of the total energy consumption of building envelope components. According to statistics, under the conditions of heating or air conditioning, the heat loss of single glass windows accounts for about 30% - 50% of the heating load in winter, and the cooling capacity consumed by solar radiant heat entering the room through single glass windows accounts for about 20% - 30% of the air conditioning load in summer. The heat loss of external windows of buildings in China is more than twice that of similar buildings in Canada and other northern hemisphere countries. Enhancing the thermal insulation performance of doors and windows and reducing the energy consumption of doors and windows are important links to improve the quality of indoor thermal environment and improve the level of building energy conservation. Therefore, this paper will focus on how to do a good job in the application and connection between energy-saving glass and energy-saving standards in combination with the building energy-saving design standards being formulated in cold and cold areas, so as to provide a certain reference for the development of energy-saving glass market

2 the new energy-saving standards have raised the energy efficiency of residential buildings to

China has a vast territory, and the climate varies greatly across the country. The northern region of China is divided into severe cold and cold regions according to the climate type, with a large area and a wide range, exceeding 1/2 of the national area. The heat loss of temperature difference heat transfer accounts for the main position. At the end of 2005, the real residential construction area in cities in severe cold and cold regions in China was 46. 400million m2 in 2005, the completed area of new residential buildings in cities and towns in this region was 2. 800million m2. In addition, the completed area of new residential buildings in rural areas in this region is 2. 700million m2, with a huge scale. In order to promote the energy-saving work of residential buildings in northern China, the Ministry of construction revised and supplemented the industrial standard "energy efficiency design standard for civil buildings (heating residential buildings)" (jgj26--95) issued in 1995 according to the 65% energy-saving standard for new, reconstructed and expanded residential buildings in severe cold and cold regions, renamed it "energy efficiency design standard for residential buildings in severe cold and cold regions", and has completed the public consultation work, It is being revised and improved, and is expected to be promulgated and implemented in 2009

on April 1st, 2008, the energy conservation law was fully implemented, and building energy conservation, as an important promotion object of the energy conservation law, has attracted much attention. At present, China's building energy consumption has exceeded 1/4 of the total national energy consumption, and will gradually increase to more than 1/3 with the improvement of people's living standards. Building energy consumption has become a major problem affecting the overall social and economic development. China's public building energy efficiency design standards have been implemented since 2005, and residential buildings are also the key and focus of building energy efficiency. In the first revision of residential buildings in 1999, the energy consumption of residential buildings in the north is much higher than that in the south. However, due to the complex building structure, different forms of heating system and uneven energy consumption level in the northern heating area, the task of energy-saving transformation is large. Therefore, the energy conservation of existing and new residential buildings in the North has become the focus and difficulty of energy conservation research. At present, the central heating area in northern China is more than 2 billion square meters, and the heating energy consumption accounts for more than 20% of the local energy consumption of the whole society, which is the largest component of building energy consumption

among the four envelope components of doors and windows, walls, roofs and floors that affect building energy consumption, the thermal insulation performance of doors and windows is the worst, which is one of the main factors affecting indoor thermal environment quality and building energy conservation. As for the typical building envelope components in China, the energy consumption of doors and windows accounts for about 40% - 50% of the total energy consumption of building envelope components. According to statistics, under the conditions of heating or air conditioning, the heat loss of single glass windows accounts for about 30% - 50% of the heating load in winter, and the cooling capacity consumed by solar radiant heat entering the room through single glass windows accounts for about 20% - 30% of the air conditioning load in summer. The heat loss of external windows of buildings in China is more than twice that of similar buildings in Canada and other northern hemisphere countries. Enhancing the thermal insulation performance of doors and windows and reducing the energy consumption of doors and windows are important links to improve the quality of indoor thermal environment and improve the level of building energy conservation. 10、 Force measurement range: 2% - 100% FS (4kn ~ 200kn therefore, this paper will focus on how to do a good job in the application and connection between energy-saving glass and energy-saving standards in combination with the building energy-saving design standards being formulated in severe cold and cold areas, so as to provide a certain reference basis for the development of energy-saving glass market.

2 the new energy-saving standards improve the energy efficiency of residential buildings to

China has a vast territory, and the climate varies greatly across the country. According to the climate type in northern China It is divided into severe cold and cold regions, with a large area and a wide range, exceeding 1/2 of the national area. The heat loss of temperature difference heat transfer accounts for the main position. At the end of 2005, the real residential construction area in cities in severe cold and cold regions in China was 46. 400million m2 in 2005, the completed area of new residential buildings in cities and towns in this region was 2. 800million m2. In addition, the completed area of new residential buildings in rural areas in this region is 2. 700million m2, with a huge scale. In order to promote the energy-saving work of residential buildings in northern China, the Ministry of construction revised and supplemented the industrial standard "energy efficiency design standard for civil buildings (heating residential buildings)" (jgj26--95) issued in 1995 according to the 65% energy-saving standard for new, reconstructed and expanded residential buildings in severe cold and cold regions, renamed it "energy efficiency design standard for residential buildings in severe cold and cold regions", and has completed the public consultation work, It is under revision and improvement. It is expected that the capital project expenditure of new Dow will be reduced from $4billion per year before to $2.8 billion in 2009

4 conclusion

in the process of energy-saving development of doors and windows, the glass used in door and window curtain walls, after float glass, heat absorbing glass and heat reflecting glass, Low-E glass has become the fastest growing energy-saving glass in recent years with its unique optical characteristics, good thermal insulation performance and environmental protection performance without reflected light pollution. In recent years, driven by the national building energy conservation policy, the output of Low-E glass has increased significantly. According to incomplete statistics, by the end of 2007, there were more than 20 domestic and offline Low-E glass production lines with a certain scale and quality level. In 2007, the market sales reached 10000 square meters, and some enterprise products were in short supply. With the formulation and implementation of energy-saving design standards for residential buildings in severe cold and cold areas, it will further promote the wide application of Low-E glass in the field of residential buildings. The energy-saving work of residential buildings will provide a broader development space for the development of Low-E glass and other energy-saving glass

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