液池内异种气体射流强化传热新方法的摄影研究

异种气体射流强化传热的新方法即使在“负温差的情况下也有很高的热流量发生。高速摄影实验装置进一步发展了这一试验研究。液池中气体喷射出的气泡形态以及生成频率和上升速度均用高速摄影记载了下来。本文用实验的结果对这一新的强化传热的特征作出了解释。

Photographical Study of A new Method of Heat Transfer Augmentation with Foreign Gas Jet Impingement in Liquid Pool

A new method of heat transfer augmentation with foreign gas jet impingement has recorded very high heat flux even in the case of "negative temperature difference".High speed photographic apparatus has further developed this experimental study.The bubble behavoir of the impinging gas in the liquid bath and the bubble departure frequency as well as its raised velocity were recorded with a high speed cameera.The heat transfer characteristics associated with the new method of heat transfer augmentation may be explained with the experimental results preseneted in this paper.