文档介绍：3
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暖通空调 HV &A C 2008 年第 38 卷第 11 期标准规范· 77 ·
英国既有非住宅建筑节能
法规 L2B 一窥
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哈尔滨工业大学叶凌☆姚杨
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中国建筑科学研究院王清勤
摘要介绍了此法规中的部分重要内容,如玻璃幕墙传热系数 U 值的计算公式,简单回收
期的计算等。通过与我国《公共建筑节能设计标准》在窗墙比、围护结构传热系数等规定性指
标限值方面进行比较和分析,发现其指标限值更加严格;并认为其所运用的方法概念,如用
CO2 排放量来进行权衡判断、以自我认证制度来完成节能工程,以及通过多种供选选项来辅助
建筑师的节能设计等,对我国的建筑节能工作有一定借鉴意义。
关键词既有非住宅建筑公共建筑节能设计标准围护结构传热系数
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St u d y o n a p p r o v e d Do c u m e nt L2B : C o ns e rv a ti o n of f u e l a n d
p o w e r i n e xisti n g b uil di n gs ot h e r t h a n d w e lli n gs of UK
By Ye Ling ★, Yao Yang and Wang Qingqin
Abst ra ct Presents some imp ortant contents in t he Document , such as t he calculating f ormula of heat
transf er coefficient U value of glass curtain walls and simple p ayback calculation. paring and
analysing t he diff erences between t he Document and China s national standard , Design sta ndard f or energy
efficiency of p ublic buildings , in terms of limiting values of p rescrip tive indices , such as area ratio of window
to wall and heat transfer coefficient of building envelope , finds t hat t he limiting values in t he Document are
stricter . Considers t hat t he met hods and/ or notions used in t he Document , such as choosing trade off options
by CO 2 emissions , implementing energy efficient p rojects t hrough self certification systems , and assisting
architecture design wit h s