均匀散射介质参与体系辐射换热分析

1.东北大学,材料与冶金学院,沈阳,110004;沈阳工程学院,动力工程系,沈阳,110136

2.东北大学,材料与冶金学院,沈阳,110004

3.东北大学,材料与冶金学院,沈阳,110004

4.东北大学,材料与冶金学院,沈阳,110004

Analyses of radiant heat exchange in an enclosure with homogeneous scattering media

在辐射换热网络法基础上,定义了容积散射热阻并导出其表达式,区别容积辐射体对不同表面段的发射率及逸散系数,分析了均匀散射介质参与辐射换热时空间热阻的变化,并绘制出散射介质参与的三元体系辐射换热网络图.介质的散射使得容积段与表面段之间的总热阻增大,因而削弱了容积段与表面段之间的辐射热交换.

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