PCS换热器螺旋结构强化换热数值研究  

Numerical study on enhanced heat transfer of helical structure in PCS heat exchanger

作　　者：周宗和 宋杨 韩美祺 陈凯 ZHOU Zong-he;SONG Yang;HAN Mei-qi;CHEN Kai

机构地区：[1]海装驻武汉地区第三军事代表室,湖北武汉430205 [2]中国船舶集团有限公司,北京100097 [3]武汉第二船舶设计研究所热能动力技术重点实验室,湖北武汉430205

出　　处：《节能》2023年第12期15-18,共4页Energy Conservation

基　　金：国家自然科学基金项目(项目编号:52006157)。

摘　　要：为了优化非能动热量导出系统(PCS)的设计,提高其换热性能,从而进一步提高PCS系统设计的安全性和先进性,采用数值分析的方法对光管、螺旋扁管和螺旋翅片管的冷凝传热特性进行研究。结果显示:在高含量不凝气条件下,螺旋翅片管的换热性能最强,螺旋扁管次之,光管最差。研究表明,PCS换热器采用螺旋翅片管能够强化换热效果。In order to optimize the design of the Passive Containment Cooling System(PCS) and enhance its heat transfer performance,thereby further improving the safety and advancement of the PCS system design,a numerical analysis method was employed to study the condensation heat transfer characteristics of straight tubes,spiral flat tubes,and spiral finned tubes.The results show that under high non-condensing gas conditions,the heat transfer performance of the spiral finned tube is the strongest,followed by the spiral flat tubes,and the straight tubes perform the poorest.The study indicates that employing spiral finned tubes in PCS heat exchangers can effectively enhance heat transfer efficiency.

关 键 词：PCS换热器 换热性能 螺旋翅片管 螺旋扁管 光管 

分 类 号：TL334[核科学技术—核技术及应用]