多孔物料床的池沸腾换热特性及其改善方法

NUCLEATE POOL BOILING HEAT TRANSFER CHARACTERISTICS OF POROUS PARTICULATE BED AND ITS IMPROVEMENT

本文对液体浸透多孔物料床的池沸腾换热进行了实验研究和理论分析,得到了颗粒直径大小对换热特性的影响规律,并据以提出改善沸腾特性的方法。实验表明,具有渗透能力的多孔物料床,既能强化池沸腾换热,又可提高其高限和低限热流密变。

Nucleate pool boiling heat transfer characteristics of porous paniculate bed have been experimentally investigated and analyzed. The effect of particulate diameters on heat transfer characteristics has been obtained, and a method suggested for improving its performance has been put forward, which not only enhances the boiling heat transfer but also increases its critical and limited heat flux.