建筑热能通风空调
建築熱能通風空調
건축열능통풍공조
BUILDING ENERGY & ENVIRONMENT
2012年
1期
41-45,64
,共6页
围护结构%灵敏度%能耗%体形系数%窗墙比%遮阳系数%传热系数%太阳辐射吸收系数
圍護結構%靈敏度%能耗%體形繫數%窗牆比%遮暘繫數%傳熱繫數%太暘輻射吸收繫數
위호결구%령민도%능모%체형계수%창장비%차양계수%전열계수%태양복사흡수계수
envelope%sensitivity%energy consumption%shape coefficient%window to wall area ratio%shading coefficient%heat-transfer coefficient%solar radiation absorptance
为得到围护结构各相关因素对建筑能耗影响的权重,采用EETP围护结构评价指标对空调、采暖能耗进行计算,分析了夏热冬冷地区上海、长沙、韶关和成都四个城市高层点式住宅围护结构各因素对空调、采暖及全年能耗的灵敏度,包括体形系数、窗墙比、遮阳系数、外墙/屋顶/外窗的传热系数、外墙/屋顶外表面的太阳辐射吸收系数。结果表明：窗墙比为25%时,墙体传热系数、体形系数和窗墙比依次是影响全年能耗的前三位主要因素,四个城市灵敏度分别为24.4%~35.8%、21.7%~32.0%和16.8%~31.1%;窗墙比为50%时,窗墙比、体形系数和遮阳系数依次是前三位主要因素,灵敏度分别为34.8%~45.6%,20.0%~44.3%和12.0%~47%;外墙和屋顶外表面太阳辐射吸收系数以及屋顶传热系数对建筑全年能耗影响均很小。
為得到圍護結構各相關因素對建築能耗影響的權重,採用EETP圍護結構評價指標對空調、採暖能耗進行計算,分析瞭夏熱鼕冷地區上海、長沙、韶關和成都四箇城市高層點式住宅圍護結構各因素對空調、採暖及全年能耗的靈敏度,包括體形繫數、窗牆比、遮暘繫數、外牆/屋頂/外窗的傳熱繫數、外牆/屋頂外錶麵的太暘輻射吸收繫數。結果錶明：窗牆比為25%時,牆體傳熱繫數、體形繫數和窗牆比依次是影響全年能耗的前三位主要因素,四箇城市靈敏度分彆為24.4%~35.8%、21.7%~32.0%和16.8%~31.1%;窗牆比為50%時,窗牆比、體形繫數和遮暘繫數依次是前三位主要因素,靈敏度分彆為34.8%~45.6%,20.0%~44.3%和12.0%~47%;外牆和屋頂外錶麵太暘輻射吸收繫數以及屋頂傳熱繫數對建築全年能耗影響均很小。
위득도위호결구각상관인소대건축능모영향적권중,채용EETP위호결구평개지표대공조、채난능모진행계산,분석료하열동랭지구상해、장사、소관화성도사개성시고층점식주택위호결구각인소대공조、채난급전년능모적령민도,포괄체형계수、창장비、차양계수、외장/옥정/외창적전열계수、외장/옥정외표면적태양복사흡수계수。결과표명：창장비위25%시,장체전열계수、체형계수화창장비의차시영향전년능모적전삼위주요인소,사개성시령민도분별위24.4%~35.8%、21.7%~32.0%화16.8%~31.1%;창장비위50%시,창장비、체형계수화차양계수의차시전삼위주요인소,령민도분별위34.8%~45.6%,20.0%~44.3%화12.0%~47%;외장화옥정외표면태양복사흡수계수이급옥정전열계수대건축전년능모영향균흔소。
To obtain the influence weights of envelope related parameters on building energy consumption,EETP index which is the evaluation index on energy and thermal performance of residential envelope was used to calculate the energy consumption for cooling and heating,the sensitivities of cooling,heating and yearly energy consumption for high-rise point residential building were analyzed in four cities of Shanghai,Changsha,Shaoguan and Chengdu in hot summer and cold winter zone,which including shape coefficient,window to wall area ratio（WWR）,shading coefficient,heat-transfer coefficient of wall/roof/window and solar radiation absorptance of wall/roof surface.The results show that,when the WWR is 25%,the top three main factors in turn are heat-transfer coefficient of wall,shape coefficient and WWR,the sensitivities of four cities are 24.4%~35.8%,21.7%~32.0% and 16.8%~31.1%,respectively;when the WWR is 50%,the top three main factors in turn are WWR,shape coefficient and shading coefficient,the sensitivities are 34.8~45.6%,20.0%~44.3% and 12.0%~47%,respectively;The effects of solar radiation absorptance of wall and roof and the heating-transfer coefficient of roof on the energy consumption are very slight.
