摘要
翅片排列方式影响换热器的换热系数.以翅片排列顺序不同的错列式和直列式翅片换热器作为研究对象,采用数值分析手段,分析并比较不同翅片排列方式的套管换热器与光管换热器的换热系数.研究结果表明,翅片换热器换热系数比光管套管换热器换热系数分别提高了87.8%与98.2%,同时压降分别增加了35.1%和37.6%.错列式翅片换热器比直列式翅片换热器换热系数提高了5.2%.
The pattern of finned array affects the heat transfer performance of a heat exchanger.The heat transfer coefficient of tube and shell heat exchanger with and without a finned array is investigated by computational fluid dynamics.The results reveal that the heat transfer coefficient of shell and tube heat exchanger with in-line-fin and staggered-fin increases by 87.8% and 98.2% of that without finned array,respectively,and with 35.1%and 37.6% increments of pressure drop correspondingly.The heat transfer coefficient of heat exchanger with staggered-fin is increased to 5.2% compared with that with in-line-fin array.
出处
《江苏科技大学学报（自然科学版）》
CAS
2014年第2期150-154,共5页
Journal of Jiangsu University of Science and Technology:Natural Science Edition
基金
国家自然科学基金资助项目(51205177)
江苏省产学研联合创新基金资助项目(BY2013066-09)
江苏省自然科学基金资助项目(BK2012277)
关键词
换热器
直列式翅片
错列式翅片
数值模拟
heat exchanger
in-line-fin
staggered-fin
numerical simulation
