夏热冬冷地区间歇供暖房间动态热特性研究

Study on Dynamics Thermal Characteristics of Intermittent Heating Room in Hot Summer and Cold Winter Zone

选取上海地区某办公建筑中的一个典型房间,在两种供暖模式下,对其在典型气象日的热过程进行计算分析,包括房间连续供暖和间歇供暖时的热负荷、供热量流向、围护结构内表面温度、有效平均温度。结果表明,在周围房间均不提供供暖的情况下,间歇供暖的节能量为12245 W·h,节能率为31.11%;间歇供暖时墙体蓄热量占总供热量的37.06%,流向室外、邻室和走廊的热量分别占11.43%、25.83%和5.14%,室内空气和家具升温所耗热量占20.54%;供暖系统间歇运行时,对于蓄热能力差的围护结构,其内表面温度波动较大。

The article chooses typical room in some Shanghai office building to analyze and calculate thermal process in typical meteorological day during two heating modes,including heat load,flow direction of heat supply,envelope surface temperature and effective average temperature of room continuous heating and intermittent heating.The results show that energy saving quantity is 12245 W·h and energy saving rate is 31.11%intermittent heating during around rooms stop heating.Heat energy storage in wall is 37.06%of total heating supply and heating into outside is 11.43%of total heating supply and heating into next room is 25.83%of total heating supply and heating into corridor is 5.14%of total heating supply while heat consumption of indoor air and furniture is 20.54%of total heating supply.For poor heat storage capacity envelope,its internal surface temperature changes much during intermittent heating.