An experimental study of the two-phase flow adjacent to a wire in nucleate boiling under an electric field

被引：2
|
作者：
Masson, VP [1 ]
Carrica, PM
机构：
[1] Ctr Atom Bariloche, RA-8400 Bariloche, Rio Negro, Argentina
[2] Inst Balseiro, RA-8400 Bariloche, Rio Negro, Argentina
来源：
EXPERIMENTAL HEAT TRANSFER | 2000年 / 13卷 / 02期
关键词：
D O I：
10.1080/089161500269490
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
An experimental study of the two-phase flow near a heated wire in nucleate pool boiling is presented, A nonuniform electric field of cylindrical geometry was imposed to the heater. The two-phase flow parameters Here measured using specifically developed local phase-detection optical probes. The study includes experiments varying the vertical distance from the heater (z) and measurements of the void fraction and the impact rate in a plane perpendicular to the heater (y-z). The results show that the void fraction decreases with applied voltage and with z. The dependence of the void fraction and the impact rate with heat flux is complex, with a strong decrement in the impact rate and void fraction near the critical heat flux,when voltage is applied. The maximum void fraction and impact rate move from the vertical centerline (z) to a position 3 heater radii away.
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页码：107 / 123
页数：17
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