多孔材料传冷特性的对比试验

Contrastive experiment on heat transfer characteristic of porous materials

通过试验对3种不同孔径的多孔纤维材料传冷特性进行了对比分析,试验结果证明材料的传冷特性与其纤维平均直径有着密切的关系。随着多孔材料纤维平均直径的减小,其蓄液传冷特性不断增强。经过试验测温比较,纤维平均直径最小的微细玻璃纤维在低温下具有最佳蓄液传冷特性。

Three different kinds of porous materials were studied by experiment. The experiment result testified that there was a consanguineous relation between heat transfer characteristic and fiber mean diameter. With the decrease of porous materials＇ fiber mean diameter, the capacity of cumulating liquids and heat transfer characteristic were enhanced continuously. By measuring temperature and comparing each other in experiment, it was found that the tenuous fiberglass which has the most minimal fiber mean diameter possessed the optimal heat transfer characteristic.