Generalized adiabatic pressure drop correlations in evaporative micro/mini-channels

被引：48

作者：

Li, Wei ^{[1
]}

Wu, Zan ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Energy Engn, Hangzhou 310027, Zhejiang, Peoples R China

来源：

EXPERIMENTAL THERMAL AND FLUID SCIENCE | 2011年 / 35卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Micro-channel; Pressure drop; Two-phase multiplier; Chisholm parameter; Bond number; 2-PHASE; FRICTION; FLOW; REFRIGERANTS; TUBES;

D O I：

10.1016/j.expthermflusci.2010.07.005

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Existing database in literature on the adiabatic two-phase frictional pressure drop in evaporative micro/mini-channels were reviewed. The collected database contains 769 data points, covering 12 fluids, for a wide range of operational conditions and channel dimensions. The whole database was analyzed using five existing correlations to verify their respective accuracies. The importance of the Bond number, which relates the nominal bubble dimension or capillary parameter with the channel size, was revealed. A particular trend was observed with the Bond number that distinguished the entire database into three ranges. Using the Bond number, improved correlations of adiabatic two-phase pressure drop were established for small Bond number regions. The newly proposed correlations can predict the database well for the region where BoRe(1)(0.5) <= 200. (C) 2010 Elsevier Inc. All rights reserved.

引用

页码：866 / 872

页数：7

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