Modelling of evaporation and condensation pressure drop in microfin tubes

被引：0

作者：

Chamra, LM ^{[1
]}

Mago, PJ ^{[1
]}

Tan, MO ^{[1
]}

Kung, CC ^{[1
]}

机构：

[1] Mississippi State Univ, Dept Mech Engn, Mississippi State, MS 39762 USA

来源：

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE | 2005年 / 219卷 / 01期

关键词：

evaporation; condensation; pressure drop; microfin tubes;

D O I：

10.1243/095440605X8306

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A semi-empirical model to predict the pressure drop of pure refrigerants and refrigerant mixtures in microfin tubes for both condensation and evaporation is presented. The new pressure-drop model is based on an existing smooth-tube correlation. The model was validated using experimental data compiled from published literature and this showed that the model is capable of predicting pressure drops for different refrigerants and refrigerant mixtures within 10-25 per cent mean absolute deviation. This model can be employed in microfin tubes with fin heights from 0.1 to 0.38 mm, helix angles from 0 to 30 degrees, and mass flux ranges up to 600 kg/m(2) s.

引用

页码：61 / 71

页数：11

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