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利用EHD技术进行了工质R123的池内平板沸腾强化传热实验研究。在该实验中,换热面为一平板并接地作为0电极,高压电极为平行于换热面的网状电极。实验结果表明,正电压的强化效果较好,电压越高,强化效果越好。低热流密度下,EHD对沸腾换热的强化效果比高热流密度的强化效果好。起沸点随着电压的增加而增加,同不加电压时相比,在20 kV时,起沸点提高了4倍。
EHD technology was used to conduct a laboratory test of enhanced plate-heat transfer enhancement of working fluid R123. In this experiment, the heat transfer surface is a flat plate and grounded as the 0 electrode, and the high voltage electrode is a mesh electrode parallel to the heat transfer surface. The experimental results show that the positive voltage enhancement effect is better, the higher the voltage, the better the enhancement effect. At low heat flux density, EHD has better enhancement effect on boiling heat transfer than high heat flux density. The boiling point increases with increasing voltage, with a 4-fold increase in boiling point at 20 kV compared to when no voltage is applied.