基于热舒适的建筑外墙隔热设计参数研究

Thermal insulation design parameters of building facades based on thermal comfort

给出了夏热冬冷地区和寒冷地区4个典型城市的热适应模型与热可接受温度区间。对4个城市的常见围护结构进行了调研,基于夏季典型设计日室外空气温度动态变化,得到了不同围护结构内表面温度的逐时变化值。基于热适应模型,确定了不同气候区典型城市常见围护结构人可接受的最高内表面温度,并与现行相关规范进行了对比分析。结果显示,上海市和西安市规范所规定的自然通风环境下围护结构内表面最高温度无法满足人员热舒适要求,规范规定限值应进行适当下调。

The thermal adaptation models and human thermal acceptable temperature ranges of four typical cities in hot summer and cold winter zone and cold zone are given.The common building envelopes of the four cities are investigated.Based on the dynamic changes of outdoor air temperature on typical design days in summer,the hourly variation values of the inner surface temperatures of different building envelopes are obtained.Based on the thermal adaptation model,the highest human-acceptable inner surface temperature of common building envelopes in typical cities in different climatic regions is determined and compared with the current relevant code.The results show that the highest inner surface temperatures of the building envelopes in the natural ventilation environment in Shanghai and Xi’an stipulated in the code do not meet the requirements of personnel thermal comfort,and the limit value stipulated in the code should be upgraded appropriately.