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The heat transfer characteristic of shell-side film flow in spiral wound heat exchanger under rolling working conditions
被引：45
|作者：
Ren, Yan
[1
,4
]
Cai, Weihua
[2
,4
]
Chen, Jie
[3
]
Lu, Laiyun
[3
]
Wang, Jiansheng
[4
]
Jiang, Yiqiang
[1
]
机构：
[1] Harbin Inst Technol, Bldg Thermal Energy Engn, Harbin, Heilongjiang, Peoples R China
[2] Harbin Inst Technol, Sch Energy Sci & Engn, Harbin, Heilongjiang, Peoples R China
[3] CNOOC Gas & Power Grp, Beijing, Peoples R China
[4] Tianjin Univ, Minist Educ China, Key Lab Efficient Utilizat Low & Medium Grade Ene, Tianjin 300072, Peoples R China
关键词：
Spiral wound heat exchanger (SWHE);
Film flow;
Heat transfer;
Rolling working condition;
Numerical simulation;
RECTANGULAR CHANNEL;
PULSATING FLOW;
COILED TUBE;
MOTION;
MODEL;
GAS;
D O I：
10.1016/j.applthermaleng.2017.12.092
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In order to explore the shell-side heat transfer characteristic for spiral wound heat exchanger (SWHE) in floating liquefied natural gas (FLNG) field, a model was established to simulate the heat transfer of shell side film flow in real working conditions. The influence of rolling parameters and working parameters on shell-side heat transfer characteristic was investigated. For ethane, the results showed that the numerical model satisfies the accuracy requirement. In general, under static working conditions, the heat transfer coefficient increases with the increase of mass flux and the decrease of working pressure, but heat flux has little influence on it. These simulation results were consistent with experimental data and calculation results by correlations. And the heat transfer coefficient shows obvious periodicity under rolling working conditions. The rolling movement can enhance the heat transfer of shell-side film flow, and the influence of different parameters on heat transfer is different. These results will provide some instructions in the design and safe operation for SWHE in FLNG. (C) 2017 Elsevier Ltd. All rights reserved.
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页码：233 / 244
页数：12
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