摘   要：以南京地区冬季的室外空气综合温度为计算条件，利用FLUENT软件模拟分析了空心混凝土砌块、EPS外保温、复合相变混凝土砌块应用于南向外墙时对空调房间和非空调房间室内热环境的影响。研究结果表明：对于空调房间和非空调房间，相变石膏板内置时的利用效果均优于外置；对于空调房间，EPS外保温和内置相变温度为19℃的相变石膏板的复合相变混凝土砌块下的内壁面热流波幅分别较空心混凝土砌块减小73%、43%，而房间总散热量分别较空心混凝土砌块减小6%、45%；对于非空调房间，内置相变温度为15℃的相变石膏板的复合相变混凝土砌块下的室内空气平均温度分别较空心混凝土砌块和EPS外保温提高2.45℃和2.24℃，而温度波幅分别较空心混凝土砌块和EPS外保温减小82%和51%。

Abstract: The outdoor air complex temperature in winter in Nanjing as the calculation conditions, the FLUENT software was used to simulate and analyze the effect of the hollow concrete block (HCB), EPS external insulation (EPS) and the composite phase change concrete block (PCCB) applied in the south facade on the indoor thermal environment of rooms with air conditioners and without air conditioners. The results show that, for the rooms with air conditioners and without air conditioners, the utilization effect of the phase change plasterboard (PCB) in internal putting was better than external putting; for the room with air conditioners, the amplitudes of heat flux on the inner wall surface of EPS and PCCB (the PCB was put in the inner hole, the phase change temperature was 19℃) decreased by 73% and 43% respectively than HCB, and the total heat emission of the room decreased by 6% and 45% respectively than that of HCB; for the room without air conditioners, the average temperature of indoor air of the room with PCCB (the PCB was put in the inner hole, the phase change temperature was 15℃) increased by 2.45℃ and 2.24℃ respectively than HCB and EPS, and the amplitude of the temperature of the indoor air decreased by 82% and 51% respectively than that of HCB and EPS.