考虑热压和风压作用的高层建筑户间传热分析
Analysis on heat transfer between neighborhoods in high-rise buildings considering stack effect pressure and wind pressure
摘要：
高层建筑中热压和风压作用更加显著，有必要对高层建筑户间传热进行分析。以沈阳市某12层居住建筑为研究对象，针对未供暖住户处于建筑中不同位置的情况，计算了稳态设计工况下的户间传热温差和户间传热比例。计算结果随供暖与未供暖住户相对位置不同而有较大差异，户间传热温差为2.8~11.4 ℃，未供暖住户得热比例为69%~92%，供暖住户失热比例为4%~96%；热压和风压作用导致计算结果沿建筑竖向存在差别，户间传热温差的竖向差别可达21%，而户间传热比例的竖向差别在10%以内；建筑层数增加到32层时，户间传热温差的竖向差别可达34%，但户间传热比例的竖向差别仍在10%以内。
Abstract：
In view of the fact that the stack effect pressure and wind pressure in high-rise buildings are more significant, it is necessary to analyse the heat transfer between neighborhoods. Taking a 12-storey residential building in Shenyang city as the research object, calculates the heat transfer temperature difference and the heat transfer ratio between neighborhoods under the steady design condition with non-heating households at different locations in the building. The calculated results differ with the location change of heating and non-heating households in the building. The heat transfer temperature difference between neighborhoods is 2.8 to 11.4 ℃, the relative heat gain of non-heating households is 69% to 92%, and the relative heat loss of heating households is 4% to 96%. Stack effect pressure and wind pressure make the results different vertically in the building, with the vertical difference between the heat transfer temperature up to 21%, while the vertical difference between the heat transfer ratio within 10%. When the building changes to a 32-storey one, the temperature difference differs vertically up to 34%, but the heat transfer ratio differs vertically still within 10%.
Keywords:high-rise building, stack effect pressure, wind pressure, air infiltration, heat transfer between neighborhood