工业重型围护结构被动系统蓄热性能的研究

Study on Heat Storage Performance of Passive System of Industrial Heavy Building Envelope

本文以某实际工程的被动系统为原型,建立了该大惯性被动系统的物理模型。在此基础上,对2种天花板结构下的被动系统进行了数值模拟,比较了两种工况下被动系统的室内空气温度、蓄热量分布和蓄热率情况。最后通过实验结果验证了模拟工况的可靠性。结果表明增加肋片可增加被动系统的蓄热量和蓄热率,并且能有效地控制室内空气温升。

This paper constructed a physical model of th~ passive system with large inertia based on the prototype of passive system for a practical engineering, On this basis,it carried out numerical simulations of the passive system with 2 ceiling structures and compared indoor air temperature, heat storage distribution and heat storage rate of the passive system under these 2 operating conditions. Finally, it verified the reliability of simulated operating conditions based on experimental results. The results showed that addition of rib could increase heat storage capacity and heat storage rate of passive system, and could effectively control indoor air temperature.