Flow pattern, pressure drop and heat transfer coefficient during two-phase flow boiling of R134a in pump-assisted separate heat pipe

Shao Jie; Li Xiaohua; Guo Zhenjiang; Ma Tengfei; Liu Ruijing; Tian Xiaoliang

首页> 外文期刊>Experimental Thermal and Fluid Science: International Journal of Experimental Heat Transfer, Thermodynamics, and Fluid Mechanics >Flow pattern, pressure drop and heat transfer coefficient during two-phase flow boiling of R134a in pump-assisted separate heat pipe

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Flow pattern, pressure drop and heat transfer coefficient during two-phase flow boiling of R134a in pump-assisted separate heat pipe

机译：泵辅助分离热管中R134A两相流沸腾过程中的流动模式，压降和传热系数

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The pump-assisted separate heat pipe (PASHP) has a broad application prospect in the field of saving energy. Two-phase flow boiling, in PASHP is a multifarious physical process and the study of the characteristic of the flow boiling in PASHP is significant. The experimental investigation of two-phase flow boiling of R134a in PASHP was, conducted. The results indicate that the flow patterns agree with the Wojtan-Ursenbacher-Thome map. The pressure drop has been compared with Muller-Steinhagen-Heck correlation, and the compared results indicate that the experimental data are inside the 10% confidence interval predictions. The heat transfer coefficients were compared with correlation given by Mohseni. It indicates that all the experimental data are inside the 10% confidence interval predictions at x > 0.1. However, part of error is beyond 30% at x <= 0.1. A new heat transfer coefficient correlation was developed, and most of the estimated values are within an error band of 10% of the experimental data. (C) 2017 Elsevier Inc. All rights reserved.

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来源
《Experimental Thermal and Fluid Science: International Journal of Experimental Heat Transfer, Thermodynamics, and Fluid Mechanics》 |2017年第1期|共8页
作者
Shao Jie; Li Xiaohua; Guo Zhenjiang; Ma Tengfei; Liu Ruijing; Tian Xiaoliang;
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作者单位

Qingdao Univ Inst Energy Engn Qingdao 266071 Peoples R China;

Qingdao Univ Inst Energy Engn Qingdao 266071 Peoples R China;

Qingdao Univ Inst Energy Engn Qingdao 266071 Peoples R China;

Qingdao Univ Inst Energy Engn Qingdao 266071 Peoples R China;

Qingdao Univ Inst Energy Engn Qingdao 266071 Peoples R China;

Qingdao Univ Inst Energy Engn Qingdao 266071 Peoples R China;

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原文格式 PDF
正文语种 eng
中图分类流体力学;
关键词
Heat pipe; Flow boiling; Flow patterns; Heat transfer coefficient; Pressure drop;

机译：热管;流沸腾;流动模式;传热系数;压降;

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Flow pattern, pressure drop and heat transfer coefficient during two-phase flow boiling of R134a in pump-assisted separate heat pipe

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