技术中心

【英文篇名】 Research on steady-state heat transfer calculation of thermal bridge in building envelopes 【作者中文名】 闫增峰; 林海燕; 周辉; 刘月莉; 【作者英文名】 Yan Zengfeng; Lin Haiyan; Zhou Hui and Liu Yueli Xi'an University of Architecture Xi'an; China; 【作者单位】 西安建筑科技大学; 中国建筑科学研究院建筑物理研究所; 【文献出处】 暖通空调, Heating Ventilating 热桥; 二维稳态传热; 实验; 模拟软件; 一维简化方法; 【英文关键词】 envelope; thermal bridge; two-dimensional steady-state heat transfer; experiment; simulation software; one-dimensional simplified method; 【摘要】 在实验室进行了稳态传热条件下热桥表面温度和热流强度的测试实验,将实验结果分别与二维稳态传热模拟软件PTDA的模拟计算结果及我国现行标准中规定的一维简化方法的计算结果进行了对比。结果表明,PTDA的模拟结果较精确,而现行标准中的简化方法的误差较大,应及时修订。 【英文摘要】 Tests the surface temperature and heat flow rate per unit area of the thermal bridge in steady-state heat transfer condition in a laboratory.Compares the experimental results with those from the simulation using a two-dimensional steady-state heat transfer software—PTDA(planar temperature distribution and analysis) and the calculation by the one-dimensional simplified method defined in the current design codes of China.The result shows that the simulation results by the PTDA software agree well with the exp...