论文信息 - Effect of electric field on heat transfer performance of automobile radiator at low frontal air velocity

Effect of electric field on heat transfer performance of automobile radiator at low frontal air velocity

Abstract The effect of electric field on the performance of automobile radiator is investigated in this work. In this experiment, a louvered fin and flat tube automobile radiator was mounted in a wind tunnel and there was heat exchange between a hot water stream circulating inside the tube and a cold air stream flowing through the external surface. The electric field was supplied on the airside of the heat exchanger and its supply voltage was adjusted from 0 kV to 12 kV. From the experiment, it was found that the unit with electric field pronounced better heat transfer rate, especially at low frontal velocity of air. The correlations for predicting the air-side heat transfer coefficient of the automobile radiator, with and without electric field, at low frontal air velocity were also developed and the predicted results agreed very well with the experimental data.

Tanongkiat Kiatsiriroat | Sanparwat Vithayasai | Atipoang Nuntaphan

[1] P. Allen,et al. Electrohydrodynamic enhancement of heat transfer and fluid flow , 1995 .

[2] V. Gnielinski. New equations for heat and mass transfer in turbulent pipe and channel flow , 1976 .

[3] Tanongkiat Kiatsiriroat,et al. Performance analysis of thermosyphon heat exchanger under electric field , 2003 .

[4] Chi-Chuan Wang,et al. A generalized heat transfer correlation for Iouver fin geometry , 1997 .

[5] Chi-Chuan Wang,et al. A generalized friction correlation for louver fin geometry , 2000 .

[6] Tanongkiat Kiatsiriroat,et al. Air side performance of thermosyphon heat exchanger in low Reynolds number region: with and without electric field , 2002 .