夏熱冬冷地區(qū)居住建筑墻體保溫節(jié)能特性研究
發(fā)布時間：2019-06-13 16:31
【摘要】：目前,基于夏熱冬冷地區(qū)居住建筑特有的部分時間部分空間的建筑用能特點下的建筑節(jié)能基礎(chǔ)研究較少；節(jié)能軟件在計算該地區(qū)建筑圍護結(jié)構(gòu)的熱工性能優(yōu)劣時,也是以計算每套住宅全空間、全時間內(nèi)連續(xù)用能下的采暖和空調(diào)年耗電量為標(biāo)準(zhǔn),與該地區(qū)住宅實際的采暖空調(diào)情況不符合,并非建筑實際的采暖和空調(diào)能耗,能否評判該地區(qū)的建筑節(jié)能效果值得懷疑。因此,對夏熱冬冷地區(qū)居住建筑部分時間部分空間用能特點下的墻體保溫節(jié)能特性開展研究具有重要的意義。 對此,本文通過調(diào)查分析夏熱冬冷地區(qū)的氣候特征和建筑用能特點,得出在夏熱冬冷地區(qū),夏季和冬季室內(nèi)熱環(huán)境較惡劣,且夏季室內(nèi)熱環(huán)境要比冬季惡劣,夏季室內(nèi)熱環(huán)境惡劣延續(xù)時間約是冬季的三倍；居住建筑用能特征主要表現(xiàn)為：以空調(diào)用能為主,夏季制冷電耗遠高于冬季制熱電耗；部分空間、部分時間用能,即臥室、客廳和書房等分別用能,且用能時間段及頻率存在較大差異,應(yīng)分別對待。 針對此用能特點下的居住建筑墻體保溫節(jié)能特性,本文采用數(shù)值計算模型動態(tài)計算在該地區(qū)獨特氣候特征與用能特點下不同墻體保溫體系下的建筑能耗,研究結(jié)果表明：相比不保溫圍護墻體,采用墻體內(nèi)保溫技術(shù),既可以降低空調(diào)20.5%冷負荷,又可以降低48.2%空調(diào)熱負荷；采用外墻外保溫技術(shù),可以降低22.3%空調(diào)熱負荷,但卻會增加21%空調(diào)冷負荷,即在夏季制冷時存在“反節(jié)能”現(xiàn)象。在部分空間用能特點下,當(dāng)同時存在兩面內(nèi)墻和兩面外墻時,內(nèi)墻總耗能份額占總能耗的45%左右,僅略低于外墻總耗能,說明該地區(qū)建筑節(jié)能必須兼顧外墻保溫和內(nèi)墻保溫。 另外,本文重點分析了外墻外保溫技術(shù)在不同用能特點下的節(jié)能特性,探索適用于該地區(qū)的居住建筑墻體圍護結(jié)構(gòu)體系。結(jié)果表明：部分時間用能特性是外墻外保溫技術(shù)在夏熱冬冷地區(qū)出現(xiàn)“反節(jié)能”特性的根本原因；夏季制冷和冬季制熱在部分時間用能特性下均有可能出現(xiàn)“反節(jié)能”特性；夏季部分時間制冷時,若白天制冷,外墻外保溫技術(shù)的節(jié)能特性與外墻是否為“陽面墻”有關(guān)；但晚間制冷時,外墻外保溫技術(shù)很大可能存在“反節(jié)能”特性。對于部分空間用能,外墻外保溫技術(shù)忽略了內(nèi)墻等內(nèi)圍護構(gòu)件的能量耗散,不能最大程度上降低能量通過墻體等圍護結(jié)構(gòu)的耗散。因此,部分空間用能將降低外墻外保溫技術(shù)的建筑節(jié)能效果。在夏熱冬冷地區(qū)部分空間用能時,住宅建筑內(nèi)墻的保溫重要性反而高于外墻。
[Abstract]:At present, there is little basic research on building energy saving under the characteristics of building energy consumption in part of time and part of space, which is unique to residential buildings in hot summer and cold winter. When the energy saving software calculates the thermal performance of the building enclosure structure in this area, it is also based on the annual power consumption of heating and air conditioning under the whole space and continuous energy consumption of each residential building in the whole time, which is not in accordance with the actual heating and air conditioning situation in this area, and is not the actual heating and air conditioning energy consumption of the building. It is questionable whether the energy saving effect of the building in this area can be judged. Therefore, it is of great significance to study the characteristics of wall heat preservation and energy saving under the characteristics of partial time and partial space energy consumption in residential buildings in hot summer and cold winter. In this paper, through the investigation and analysis of the climate characteristics and building energy consumption characteristics in hot summer and cold winter areas, it is concluded that the indoor thermal environment in summer and winter is worse than that in winter, and the indoor thermal environment in summer is worse than that in winter, and the duration of indoor thermal environment in summer is about three times as much as that in winter, and the energy consumption of residential buildings is mainly air conditioning, and the power consumption of refrigeration in summer is much higher than that in winter. Part of space, part of time energy, that is, bedroom, living room and study, etc., and there are great differences in energy use time and frequency, should be treated separately. In view of the energy saving characteristics of residential building walls, this paper uses numerical calculation model to dynamically calculate the building energy consumption under different wall thermal insulation systems under the unique climate characteristics and energy consumption characteristics of this area. The results show that compared with the non-thermal insulation wall, the use of wall internal heat preservation technology can not only reduce the cooling load of air conditioning 20.5%, but also reduce the heat load of 48.2% air conditioning. By using external wall external insulation technology, the heat load of air conditioning can be reduced by 22.3%, but the cooling load of air conditioning can be increased by 21%, that is to say, there is a phenomenon of "anti-energy saving" in summer refrigeration. Under the characteristics of partial spatial energy consumption, when there are two inner walls and two external walls at the same time, the total energy consumption of the inner wall accounts for about 45% of the total energy consumption, which is only slightly lower than the total energy consumption of the external wall, which indicates that the building energy saving in this area must take into account both external wall insulation and inner wall insulation. In addition, this paper focuses on the analysis of the energy-saving characteristics of external wall insulation technology under different energy characteristics, and explores the wall envelope system suitable for residential buildings in this area. The results show that the energy consumption characteristics of part of the time are the fundamental reasons for the "anti-energy saving" characteristics of external wall external insulation technology in hot summer and cold winter areas, and the "anti-energy saving" characteristics of summer refrigeration and winter heating may appear under the characteristics of partial time energy consumption, and the energy saving characteristics of external wall external heat preservation technology are related to whether the external wall is "positive wall" or not when refrigerated during part of the summer, and the energy saving characteristics of external wall external insulation technology are related to whether the external wall is "positive wall". However, when refrigerating at night, the external insulation technology of external wall may have the characteristics of "anti-energy saving". For part of the space energy consumption, the external wall external insulation technology ignores the energy dissipation of the inner envelope such as the inner wall, and can not reduce the energy dissipation through the wall and other enclosure structures to the greatest extent. Therefore, part of the space energy will reduce the building energy saving effect of external wall external insulation technology. When part of the space energy is used in hot summer and cold winter area, the heat preservation importance of the inner wall of the residential building is higher than that of the external wall.
【學(xué)位授予單位】：浙江大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TU111.4
本文編號：2498648
[Abstract]:At present, there is little basic research on building energy saving under the characteristics of building energy consumption in part of time and part of space, which is unique to residential buildings in hot summer and cold winter. When the energy saving software calculates the thermal performance of the building enclosure structure in this area, it is also based on the annual power consumption of heating and air conditioning under the whole space and continuous energy consumption of each residential building in the whole time, which is not in accordance with the actual heating and air conditioning situation in this area, and is not the actual heating and air conditioning energy consumption of the building. It is questionable whether the energy saving effect of the building in this area can be judged. Therefore, it is of great significance to study the characteristics of wall heat preservation and energy saving under the characteristics of partial time and partial space energy consumption in residential buildings in hot summer and cold winter. In this paper, through the investigation and analysis of the climate characteristics and building energy consumption characteristics in hot summer and cold winter areas, it is concluded that the indoor thermal environment in summer and winter is worse than that in winter, and the indoor thermal environment in summer is worse than that in winter, and the duration of indoor thermal environment in summer is about three times as much as that in winter, and the energy consumption of residential buildings is mainly air conditioning, and the power consumption of refrigeration in summer is much higher than that in winter. Part of space, part of time energy, that is, bedroom, living room and study, etc., and there are great differences in energy use time and frequency, should be treated separately. In view of the energy saving characteristics of residential building walls, this paper uses numerical calculation model to dynamically calculate the building energy consumption under different wall thermal insulation systems under the unique climate characteristics and energy consumption characteristics of this area. The results show that compared with the non-thermal insulation wall, the use of wall internal heat preservation technology can not only reduce the cooling load of air conditioning 20.5%, but also reduce the heat load of 48.2% air conditioning. By using external wall external insulation technology, the heat load of air conditioning can be reduced by 22.3%, but the cooling load of air conditioning can be increased by 21%, that is to say, there is a phenomenon of "anti-energy saving" in summer refrigeration. Under the characteristics of partial spatial energy consumption, when there are two inner walls and two external walls at the same time, the total energy consumption of the inner wall accounts for about 45% of the total energy consumption, which is only slightly lower than the total energy consumption of the external wall, which indicates that the building energy saving in this area must take into account both external wall insulation and inner wall insulation. In addition, this paper focuses on the analysis of the energy-saving characteristics of external wall insulation technology under different energy characteristics, and explores the wall envelope system suitable for residential buildings in this area. The results show that the energy consumption characteristics of part of the time are the fundamental reasons for the "anti-energy saving" characteristics of external wall external insulation technology in hot summer and cold winter areas, and the "anti-energy saving" characteristics of summer refrigeration and winter heating may appear under the characteristics of partial time energy consumption, and the energy saving characteristics of external wall external heat preservation technology are related to whether the external wall is "positive wall" or not when refrigerated during part of the summer, and the energy saving characteristics of external wall external insulation technology are related to whether the external wall is "positive wall". However, when refrigerating at night, the external insulation technology of external wall may have the characteristics of "anti-energy saving". For part of the space energy consumption, the external wall external insulation technology ignores the energy dissipation of the inner envelope such as the inner wall, and can not reduce the energy dissipation through the wall and other enclosure structures to the greatest extent. Therefore, part of the space energy will reduce the building energy saving effect of external wall external insulation technology. When part of the space energy is used in hot summer and cold winter area, the heat preservation importance of the inner wall of the residential building is higher than that of the external wall.
【學(xué)位授予單位】：浙江大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TU111.4
【參考文獻】
相關(guān)期刊論文 前10條
1 韋延年;夏熱冬冷地區(qū)節(jié)能住宅外圍護結(jié)構(gòu)隔熱指標(biāo)的確定方法[J];四川建筑科學(xué)研究;2002年04期
2 吳玲紅;葉大法;周鐘;梁韜;;辦公建筑圍護結(jié)構(gòu)的保溫性能與空調(diào)能耗[J];建筑節(jié)能;2007年02期
3 顧天舒;謝連玉;陳革;;建筑節(jié)能與墻體保溫[J];工程力學(xué);2006年S2期
4 張澤平;李珠;董彥莉;;建筑保溫節(jié)能墻體的發(fā)展現(xiàn)狀與展望[J];工程力學(xué);2007年S2期
5 郭猛;;淺談中國建筑節(jié)能發(fā)展趨勢[J];建筑節(jié)能;2013年01期
6 李金;錢曉倩;吳敏莉;朱理;;夏熱冬冷地區(qū)保溫墻體節(jié)能效果分析[J];低溫建筑技術(shù);2013年05期
7 于靖華;楊昌智;田利偉;廖丹;;夏熱冬冷地區(qū)圍護結(jié)構(gòu)熱工性能系統(tǒng)評價方法的研究[J];湖南大學(xué)學(xué)報(自然科學(xué)版);2008年10期
8 孫林;;夏熱冬冷地區(qū)圍護結(jié)構(gòu)節(jié)能技術(shù)綜合評價方法[J];江蘇建筑;2006年05期
9 龔延風(fēng);住宅建筑空調(diào)部分負荷分布的研究[J];暖通空調(diào);2005年04期
10 馬軼群;陳磊;;淺析我國建筑節(jié)能現(xiàn)狀及“十二五”建筑節(jié)能形勢[J];科技信息;2012年30期
，本文編號：2498648
本文鏈接：http://sikaile.net/guanlilunwen/chengjian/2498648.html
最近更新
教材專著
