Single-phase flow thermal performance characteristics of a parallel microchannel heat exchanger

被引：12
|
作者：
Ravigururajan, TS [1 ]
Drost, MK
机构：
[1] Wichita State Univ, Dept Mech Engn, Wichita, KS 67260 USA
[2] Dept Energy, Pacific NW Natl Lab, Richland, WA 99352 USA
来源：
JOURNAL OF ENHANCED HEAT TRANSFER | 1999年 / 6卷 / 05期
关键词：
microchannel heat exchangers; high flux heat transfer; heat transfer enhancement;
D O I：
10.1615/JEnhHeatTransf.v6.i5.50
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The paper outlines the results from a recent experimental study conducted on the single-phase flow characteristics of Refrigerant 124 in a parallel microchannel heat exchanger (MCHX), Single-phase tests were conducted on a parallel microchannel heat exchanger. The experimental study was conducted for a Reynolds number range of 220 to 1250 and a heat flux range of 30 to 90 kW/m(2). The data were compared with the predictions based on established developing, laminar flow concepts. The results showed that the increase in heat transfer coefficient was nearly 2 to 8 times the predicted values for the Re range of 200 to 1200. The corresponding increase in pressure drop was 7 to 18 times that predicted by conventional theory.
引用
收藏
页码：383 / 393
页数：11
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