电场极性对池沸腾换热影响的实验研究

工程热物理学报 , 2008, 29(6): 995-998.

1.上海理工大学动力工程学院,上海,200093

2.上海理工大学动力工程学院,上海,200093

3.上海理工大学动力工程学院,上海,200093

4.上海理工大学动力工程学院,上海,200093

基金项目: 上海理工大学校科研和教改项目(X621)

EXPERIMENTAL STUDY OF INFLUENCE OF POLARITIES ON POOL BOILING HEAT TRANSFER IN AN ELECTRIC FIELD

利用EHD技术对工质R123进行了非均匀高压电场下电场极性对池沸腾换热影响的实验研究.结果表明,无论加正、负电压,强化系数均随热流密度的增加而下降,最终达到稳定值;高热流密度下,正电压有较弱的强化效果,负电压对沸腾换热具有削弱作用;正电压下的强化换热效果优于负电压下的强化换热效果.

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