摘要
以上海地区典型办公建筑为例,分析了换气次数、室内热源、通风温差控制模式、楼层及朝向对夜间通风降温节能效果的影响。结果显示,保证5～10h-1换气次数的有效夜间通风,可以实现较好的降温冷却效果;夜间通风能够显著地减小室内热源对空调开机负荷的影响,可以基本消除夜间室内15～25W/m2的内部热扰量;根据室内外温差进行通风控制,可以在室内热源发热量较小的情况下提高节能效果;房间负荷越大,通风节能效果越好。
Taking a typical office building in Shanghai as an example,analyses the influences of air changes,indoor heat sources,ventilation temperature difference control mode,floor and orientation on cooling and energy saving effects of night ventilation.The results show that a better cooling effect can be achieved if the air changes of 5 to 10 h^-1 can be reached.The night ventilation can reduce significantly the influence of indoor heat sources on the opening load of air conditioning,and remove the indoor heat gain of 15 to 25 W/m^2.Night ventilation could further increase energy savings if the temperature control modes are optimized when the total heat gains is at the low level.The heavier the indoor cooling load,the better energy saving effect of the night ventilation is.
出处
《暖通空调》
北大核心
2013年第7期73-77,共5页
Heating Ventilating & Air Conditioning
关键词
夜间通风
降温
节能
换气次数
室内热源
通风温差控制
night ventilation
cooling
energy saving
air changes
indoor heat source
ventilation temperature difference control
