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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。
In this paper, the actual system of a passive system as a prototype, established a large inertial passive system physical model. On this basis, the passive systems under two kinds of ceiling structures are numerically simulated, and the indoor air temperature, heat storage capacity and heat storage rate of the passive system under two operating conditions are compared. Finally, the experimental results verify the reliability of simulation conditions. The results show that the increase of fins can increase the heat storage capacity and thermal storage rate of the passive system, and can effectively control the indoor air temperature rise.