间歇供暖负荷计算方法研究

以夏热冬冷地区、寒冷地区和严寒地区典型城市的居住建筑和办公建筑为研究对象,分别采用DeST和DesignBuilder软件模拟分析了围护结构、换气次数及散热器和地板辐射两种供暖方式对间歇供暖热负荷的影响,给出了间歇供暖相对于连续供暖的供暖热负荷附加率,确定了合理的间歇供暖模式。结果显示,窗墙面积比对间歇供暖热负荷的影响可以忽略;换气次数每增加0.5h-1,间歇供暖热负荷附加率约增加5%;采用地板辐射供暖的间歇热负荷附加率比散热器供暖小3%～10%。

Calculation method of intermittent heating load

Taking residential and office buildings in some typical cities in the hot summer and cold winter zone,the cold zone and the severe cold zone as the research objects,simulates and analyses the influences of the building envelope,the air changes and the two modes of radiator heating and floor radiant heating on the intermittent heating load by DeST and DesignBuilder software respectively.Gives the heating load additional factor of the intermittent heating compared with the continuous heating,and determines an appropriate intermittent heating mode.The results show that the influence of the area ratio of window to wall on the intermittent heating load is negligible;the intermittent heating load additional factor increases by about five percent when the air changes increases 0.5 h-1;the intermittent heating load additional factor using floor radiant heating is lower by three percent to ten percent than that using radiator heating.