超临界LNG汽化器热流耦合传热研究  

Study on heat transfer of heat couple in supercritical LNG vaporizer

作　　者：王成刚[1] 孙宝坤[1] 晏芙蓉 郑晓敏 Wang Chenggang Sun Baokun Yan Furong Zheng Xiaomin(School of Mechanical and Electrical Engineering, Wuhan Institute of Technology,Wuhan 430205, China Hubei Marine Technology Co. , Ltd. , Wuhan 430073, China)

机构地区：[1]武汉工程大学机电工程学院,武汉430205 [2]湖北迪峰船舶技术有限公司,武汉430073

出　　处：《低温与超导》2016年第11期1-5,41,共6页Cryogenics and Superconductivity

基　　金：国家自然科学基金(50976080)资助

摘　　要：采用数值模拟整场求解的方法对超临界液态天然气(LNG)在螺旋管汽化器中热流耦合传热进行研究,得到管壳程流体的流场、温度场。通过研究管、壳程流体质量流量对流体出口温度、管壳程换热系数的影响,揭示汽化器内流体-热耦合传热规律,为超临界高压汽化器设计提供参考。Numerical simulation was used to study the heat transfer of supercritical liquid gas （LNG）in a helical tube evaporator, the flow field and temperature field of the shell and tube were obtained. The influence of tube and shell side fluid mass flow on the heat transfer coefficient of fluid outlet temperature was studied. The law of fluid heat transfer in the evaporator was revealed, which could provide reference for the design of the super critical high pressure carburetor.

关 键 词：螺旋管汽化器 LNG 热流耦合 质量流量 数值模拟 

分 类 号：TK124[动力工程及工程热物理—工程热物理]