郑州地区高层住宅节能优化量化研究
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摘要
寒冷地区居住建筑供暖能耗占建筑总能耗很大比例,降低供暖能耗是实现建筑节能的关键之一。以郑州地区高层住宅为例,从与供暖能耗密切相关的体形系数、外围护结构热工性能和气密性三方面进行了优化设计,并利用建筑能耗模拟软件Design Builder对优化前后的供暖能耗进行了量化分析。结果表明通过体形系数、外围护结构和气密性的优化,建筑供暖能耗可分别降低2.29%、16.05%和15.14%;优化后供暖总能耗由257 917 k W·h降低至178 967 k W·h,单位供暖能耗由44.89 k W·h/m2降低至31.15 k W·h/m2,降低了30.60%。研究成果为我国寒冷地区高层住宅的节能设计提供了参考。
Heating energy consumption of residential building in cold area accounts for a significant proportion of total building energy consumption. Heating energy consumption control is one key factor for energy efficiency optimization. Taking high-rise residence in Zhengzhou for example, three aspects including the shape coefficient of building, the external structure thermal performance and the air tightness,which are closely related to heat energy consumption, are analyzed using the software Design Builder. The results show that the building heating energy consumption can be reduced by 2.29%, 16.05% and 15.14%respectively by optimizing three aspects. Total heating energy consumption decreases from 257 917 k W·h to 178 967 k W·h after optimization, and the corresponding unit heating energy consumption decreases from44.89 k W·h/m2 to 31.15 k W·h/m2, reduced by 30.60%. The research results can provide a reference for energy-saving design of high-rise residence in cold area.
Heating energy consumption of residential building in cold area accounts for a significant proportion of total building energy consumption. Heating energy consumption control is one key factor for energy efficiency optimization. Taking high-rise residence in Zhengzhou for example, three aspects including the shape coefficient of building, the external structure thermal performance and the air tightness,which are closely related to heat energy consumption, are analyzed using the software Design Builder. The results show that the building heating energy consumption can be reduced by 2.29%, 16.05% and 15.14%respectively by optimizing three aspects. Total heating energy consumption decreases from 257 917 k W·h to 178 967 k W·h after optimization, and the corresponding unit heating energy consumption decreases from44.89 k W·h/m2 to 31.15 k W·h/m2, reduced by 30.60%. The research results can provide a reference for energy-saving design of high-rise residence in cold area.
引文
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[2]刘君怡,李保峰,Khee Poh Lam.夏热冬冷地区低碳住宅设计策略效用的量化分析[J].建筑学报,2010,(S1):116-119.
[3]曹毅然,张蓓红.夏热冬冷地区既有建筑节能优化改造技术研究[J].工业建筑,2013,(S1):15-18.
[4]余晓平,付祥钊.建筑节能的方法论基础探析[J].建筑节能,2012,(5):72-75.
[5]赵东来,胡春雨,柏德胜,等.我国建筑节能技术现状与发展趋势[J].建筑节能,2015,(3):116-121.
[6]耿峰,吴现营.寒冷地区公共建筑节能模拟分析[J].建筑节能,2009,(11):60-62.
[7]Valovcin S,Hering A S,Polly B,et al.A statistical approach for postprocessing residential building energy simulation output[J].Energy and Buildings,2014,85:165-179.
[8]Francesco R,Pekka T,Asa H,et al.Low-energy residential buildings in New Borg El Arab:Simulation and survey based energy assessment[J].Energy and Buildings,2015,93:65-82.
[9]刘仙萍,丁力行.建筑体形系数对节能效果的影响分析[J].湖南科技大学学报:自然科学版,2006,(2):25-28.
[10]陈池,李桂媛.围护结构热工及节能设计研究[J].三峡大学学报:自然科学版,2005,(3):241-243.
[11]黄恒栋,谯京旭.室内供暖条件下围护结构(墙、屋顶)的保温控制与节能控制——建筑热环境与建筑节能研究(之四)[J].华中建筑,2004,(6):71-73.
[12]黄恒栋,谯京旭.室内供暖条件下围护结构(窗)的保温控制与节能控制——建筑热环境与建筑节能研究(之五)[J].华中建筑,2005,(2):79-80.
[13]丰晓航,燕达,彭琛,等.建筑气密性对住宅能耗影响的分析[J].暖通空调,2014,(2):5-14.