Prediction of refrigerant void fraction in horizontal tubes using probabilistic flow regime maps

被引：22

作者：

Jassim, E. W. ^{[1
]}

Newell, T. A. ^{[1
]}

Chato, J. C. ^{[1
]}

机构：

[1] Univ Illinois, Dept Mech Sci & Engn, Urbana, IL 61801 USA

来源：

EXPERIMENTAL THERMAL AND FLUID SCIENCE | 2008年 / 32卷 / 05期

关键词：

void fraction; review; refrigerant; probabilistic; flow regime map; horizontal tubes;

D O I：

10.1016/j.expthermflusci.2008.01.007

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A state of the art review of two-phase void fraction models in smooth horizontal tubes is provided and a probabilistic two-phase flow regime map void fraction model is developed for refrigerants under condensation, adiabatic, and evaporation conditions in smooth, horizontal tubes. Time fraction information from a generalized probabilistic two-phase flow map is used to provide a physically based weighting of void fraction models for different flow regimes. The present model and void fraction models in the literature are compared to data from multiple sources including R 11, R 12, R134a, R22, R410A refrigerants, 4.26-9.58 turn diameter tubes, mass fluxes from 70 to 900 kg/m(2) s, and a full quality range. The present model has a mean absolute deviation of 3.5% when compared to the collected database. (C) 2008 Elsevier Inc. All rights reserved.

引用

页码：1141 / 1155

页数：15

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