Numerical study on condensation of R134a refrigerant in microchannel

被引：0

作者：

Safonov, S. A. ^{[1
]}

Kuznetsov, V. V. ^{[1
]}

机构：

[1] Inst Thermophys SB RAS, Acad Lavrentiev Ave 1, Novosibirsk 630090, Russia

来源：

ALL-RUSSIAN CONFERENCE XXXIV SIBERIAN THERMOPHYSICAL SEMINAR, DEDICATED TO THE 85TH ANNIVERSARY OF ACADEMICIAN A. K. REBROV | 2018年 / 1105卷

关键词：

HEAT-TRANSFER;

D O I：

10.1088/1742-6596/1105/1/012062

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The action of capillary forces during flow condensation of refrigerant R134a in rectangular microchannel is considered numerically using the annular flow model. It was shown that significant accumulation of the liquid occurs near the channel corners and causes the heat transfer enhancement. The heat transfer related to the condensation is taken into account assuming the interface temperature is at saturation. The numerical method is validated against experiments and well predicts the flow patterns inside the microchannel and average heat transfer coefficients.

引用

页数：4

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