建筑围护结构中湿对传热的影响

The Influence of Building Envelope Heat Transfer with Moisture Conditions

湿(moisture,包括气态和液态水)是影响建筑外墙性能的决定因素,常规的建筑能耗计算或者围护结构传热计算一般采用较粗略的经验值进行修正,为了研究湿对传热的影响,本文采用动态湿热耦合程序计算了不同的湿条件下对围护结构的传热。理论计算选取典型气候区适用的围护结构形式,将每种围护结构置于不同的条件下进行传热量计算并与常规状态进行对比,归纳出建筑围护结构传热计算时不同湿条件所产生的效应,结论和总结可用于围护结构传热计算时考虑使用环境影响的修正值。

Moisture（including gaseous and liquid water） is a determining factor affecting the performance of the building envelope, in order to study the influence of humidity on heat transfer, a dynamic moisture-heat coupling calculation method is used to calculate the humidity condition of different conditions and working conditions in the conventional calculation of energy consumption or heat transfer of envelope.in order to get the result of moisture change effect on heat transfer in envelope. The theoretical calculation is based on the typical climatic zone and the suitable envelope systems under different climatic conditions, each enclosure structure is analyzed under different conditions and compared with the normal state, the heat transfer per unit area is calculated, and the effect of considering wet effect in the calculation of building energy consumption is summed up. Conclusion and summarization can be used to correct or revise the heat transfer calculation of building envelope.