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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

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【作者】 项敬岩王培斌尹娜娜李彦君

【Author】 Xiang Jingyan;Wang Peibin;Yin Nana;Li Yanjun;Shenyang Institute of Engineering;

【机构】 沈阳工程学院东北大学

【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 nonheating 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 2.8to 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%.

【基金】 沈阳工程学院科技基金项目(编号:LGYB-1412)
  • 【文献出处】 暖通空调 ,Heating Ventilating & Air Conditioning , 编辑部邮箱 ,2017年09期
  • 【分类号】TU832
  • 【被引频次】1
  • 【下载频次】160
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