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个人信息Personal Information
副教授
博士生导师
硕士生导师
性别：男
毕业院校：芬兰阿尔托大学
学位：博士
所在单位：土木工程系
学科：供热、供燃气、通风及空调工程
办公地点：大连理工大学综合实验4号楼425
联系方式：haichaowang@dlut.edu.cn
电子邮箱：haichaowang@dlut.edu.cn
Dynamic heat transfer analysis of liquefied natural gas ambient air vaporizer under frost conditions
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论文类型：期刊论文
发表时间：2017-01-05
发表刊物：APPLIED THERMAL ENGINEERING
收录刊物：SCIE、EI、Scopus
卷号：110
页面范围：999-1006
ISSN号：1359-4311
关键字：Liquefied natural gas (LNG); Ambient air vaporizer (AAV); Dynamic; Heat transfer; Frost formation
摘要：Liquefied natural gas (LNG) ambient air vaporizer (AAV) is a cryogenic heat exchanger, which utilizes ambient air to evaporate LNG in gas terminal stations. The moist air around the AAV fin tube may freeze during the long-time operation, leading to a worse heat transfer performance. Study on the dynamic heat transfer performance of AAV is required for its optimal design and operation. This paper presents a coupled dynamic heat transfer model, which incorporates the cryogenic frost formation and flow boiling heat transfer of LNG. The model was demonstrated in the heat transfer analysis of a typical star-fin type AAV. The model results were validated by the test data of a commercial HA1848F type AAV. The dynamic heat transfer performance of AAV under frost conditions was also studied. (C) 2016 Elsevier Ltd. All rights reserved.