计算露点温度控制下的地下室外墙保温设计

简单介绍了地下室内热湿环境的特点,进一步明确了土壤水分渗透和室内水蒸气结露是地下室外墙出现返潮现象的两个引发因素。从暖通专业的角度思考,针对室内水蒸气结露问题,依据外墙负荷计算方法及相关传热学知识,推出一种保证地下室外墙不因室内水蒸气结露而发生返潮现象所需最小保温层热阻计算方法。以夏热冬冷的株洲地区地下室外墙保温设计为例,综合该地区的地理气候特点、备选外墙保温材料的热工性能及市场价格情况,得出EPS板为最佳保温材料,为地下室外墙保温设计提供理论与技术参考。

Insulation Design of the Basement Exterior Wall in the Controlled of the Calculations of theD ew Point Temperature

Abts ract:This paper introduces the characteristics of the basement infernal heat wet environment and further defines soil moisture penetration and indoor water vapor condensation are the two causes of the damp basement wall .From a professional point of HVAC, according to the exterior wall heat load calculation methods and related knowedge ,this paper deduceds a calculation met-hood of the minimum insualtion thermal of exterior wall of the basement which is required to ensure that the damp phenomenon will not occure because of the indoor water vapor anderisation .Taking the basement wall insulation in Zhuzhou where it is hot in summer and cold in winter for example , combining the factors such as the geographical and climatic characters of the region , the thermal performance of alternative materials and wall insulation market price situation , the design draws a conclusion that the EPS insulation board is the best .The conclusion provides theoretical and technical reference forthe basement wall insulation design .