Influences of working conditions on heat transfer characteristics in shell side of LNG spiral wound heat exchangers

被引：0
作者：
Ding C. [1 ]
Hu H. [1 ]
Ding G. [1 ]
Chen J. [2 ]
Mi X. [2 ]
Yu S. [2 ]
机构：
[1] School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai
[2] R&D Center, CNOOC Gas & Power Group, Beijing
来源：
Huagong Xuebao/CIESC Journal | 2018年 / 69卷 / 06期
关键词：
Heat transfer; LNG; Propane; Shell side; Spiral wound heat exchanger; Two-phase flow;
D O I：
10.11949/j.issn.0438-1157.20171304
中图分类号：
学科分类号：
摘要：
To clarify the influences of working conditions and longitude tube pitch on heat transfer characteristics in shell side of LNG spiral wound heat exchangers, the analysis on the propane flow boiling in the shell side is performed. The experimental conditions cover the vapor quality of 0.2-1.0, the heat flux of 4-10 kW·m-2, and the mass flux of 40-80 kg·(m2·s)-1. The results indicate that, with the increase of vapor quality, the heat transfer coefficient (HTC) increases initially, and then falls off sharply at the vapor quality of 0.8-0.9. With the increase of heat flux, the HTC increases at the vapor quality smaller than 0.8, while decreases at the vapor quality larger than 0.8. With the increase of mass flux, the HTC increases at the low heat flux condition, while presents to be non-monotonous at the high heat flux. © 2018, Science Press. All right reserved.
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页码：2417 / 2423
页数：6
相关论文
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