建筑外表面对流换热实验研究进展

Review on Experimental Study of Convective Heat Transfer of Building Exterior Surface

建筑外表面对流换热系数是建筑节能和城市环境模拟中的重要参数。本文首先介绍了建筑外表面对流换热系数的常用测试方法,即热平衡法和热质比拟法,分析了这些方法存在的问题。然后对比了现阶段国内外已经存在的大量的建筑外表面对流换热系数的取值方法,及近年来国内外建筑外表面对流换热的现场实测实验和模型实验研究现状,分析总结了现阶段研究中存在的问题,并对未来的研究工作做了展望。

The convective heat transfer coefficient （CHTC） of building exterior surface is an important parameter for energy-saving and urban environment simulation. In this paper, firstly, two measurement methods for CHTC, heat balance method and heat and mass transfer analogy method, were introduced, and also disadvantages of these methods were discussed. Secondly, by comparing the methods for CHTC calculation in handbooks and software, results of recent studies on CHTC and many related problems were indicated, the future research work about CHTC were also presented.