竖直微肋管内LNG流动沸腾传热特性的分析

doi:10.11949/j.issn.0438-1157.20150929

化工学报 ›› 2015, Vol. 66 ›› Issue (S2): 66-75.DOI: 10.11949/j.issn.0438-1157.20150929

竖直微肋管内LNG流动沸腾传热特性的分析

徐彬, 石玉美

上海交通大学制冷与低温工程研究所, 上海 200240

收稿日期:2015-06-15 修回日期:2015-06-25 出版日期:2015-08-31 发布日期:2015-08-31
通讯作者: 石玉美

Investigation on heat transfer characteristics during flow boiling of liquid natural gas in vertical micro-fin tube

XU Bin, SHI Yumei

Institute of Refrigeration and Cryogenics Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Received:2015-06-15 Revised:2015-06-25 Online:2015-08-31 Published:2015-08-31

摘要/Abstract

摘要：

实验研究了竖直微肋管内液化天然气(LNG)流动沸腾传热特性,分析热通量、质量流量以及入口压力对LNG两相流动传热特性的影响。针对实验工况分别采用Kim关联式、Koyama关联式以及两种不同F_tp系数的Wellsandt关联式对传热系数进行预测,并将实验结果与预测结果进行比较。结果表明,在整个实验工况范围内,采用Koyama关联式预测准确性最好。

关键词: 流动沸腾, 液化天然气, 两相流, 传热

Abstract:

This paper presents an experimental investigation on the heat transfer characteristics of liquid natural gas flow boiling in a vertical microfin tube.The effect of heat flux,inlet pressure and mass flux on the flow boiling heat transfer coefficients was analyzed.The Kim,Koyama,and two kinds of Wellsandt correlations with different F_tp coefficients were used to predict the flow boiling heat transfer coeffi-cients.The predicted results showed that the Koyama correlations were most adaptable under the whole experimental conditions.

Key words: flow boiling, liquid natural gas, two-phase flow, heat transfer

中图分类号:

徐彬, 石玉美. 竖直微肋管内LNG流动沸腾传热特性的分析[J]. 化工学报, 2015, 66(S2): 66-75.

XU Bin, SHI Yumei. Investigation on heat transfer characteristics during flow boiling of liquid natural gas in vertical micro-fin tube[J]. CIESC Journal, 2015, 66(S2): 66-75.

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竖直微肋管内LNG流动沸腾传热特性的分析

Investigation on heat transfer characteristics during flow boiling of liquid natural gas in vertical micro-fin tube

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