CIESC Journal ›› 2004, Vol. 55 ›› Issue (1): 160-162.
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LIU Yongqi;LI Ruiyang;WANG Fagang; YU Hongling
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刘永启;李瑞阳;王发刚;郁鸿凌
Abstract: The effects of electrode polarities on EHD enhancement boiling heat transfer were investigated theoretically and experimentally based on the analysis of electric field distribution affected by superheat boundary layer and charge injection. The results showed that electric field distribution was changed by the charge induced by temperature gradients in the superheat boundary layer, but the change was independent of electrode polarities. However, when electric charge injection occurred, the electrode applied positive high voltage might generate different characteristics of charge injection from that generated by applied negative high voltage. If the electric field on the surface of heat transfer increased due to charge injection, the augmentation effects would increase. The experiments demonstrated that positive high voltage gave larger enhancement factors than negative high voltage. The experimental phenomena could be interpreted well on the basis of charge injection characteristics.
Key words: 电水动力学, 强化传热, 沸腾传热, 电极, 极性
关键词: 电水动力学, 强化传热, 沸腾传热, 电极, 极性
LIU Yongqi, LI Ruiyang, WANG Fagang, YU Hongling. MECHANISM STUDY OF EFFECTS OF ELECTRODE POLARITIES ON EHD ENHANCEMENT OF BOILING HEAT TRANSFER[J]. CIESC Journal, 2004, 55(1): 160-162.
刘永启, 李瑞阳, 王发刚, 郁鸿凌. 电极极性影响EHD强化沸腾传热的机理 [J]. 化工学报, 2004, 55(1): 160-162.
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