化工学报2016，Vol.67Issue(11)：4615-4622,8.DOI:10.11949/j.issn.0438-1157.20160756
翅片结构对双向开缝翅片管换热器性能的影响
Effects of fin structure on heat transfer and resistance characteristics of super slit finned tube heat exchangers
屠琦琅 1袁益超 1胡晓红1
作者信息
- 1. 上海理工大学上海市动力工程多相流动与传热重点实验室，上海 200093
- 折叠
摘要
Abstract
To understand the effect of fin structure on heat transfer and resistance, numerical simulation and validation experiments were performed on super slit finned tube heat exchangers with different fin pitchesPf and slit heightsSh. WhenRewas less than 7200, heat transfer and resistance performance was improved withPf increase. WhenRewas greater than 7200, heat transfer was improved but resistance was declined withPf decrease. In case ofSh increase, heat transfer declined first and enhanced later, whereas resistance showed an opposite trend. With regard to five super slit finned tube heat exchangers with different fin structures, the comprehensive flow and heat transfer performance were improved while the actual heat transfer area was decreased withPf increase, which a consideration of all factors should be required. A good agreement was observed between the numerical simulation and experimental results whenRe was in the range of 2734—6712, indicating that the numerical simulation method could predict the heat transfer and resistance characteristics of super slit finned tube heat exchangers. These results would set a basis for optimization between structure and performance of these heat exchangers.关键词
双向开缝翅片管换热器/传热/数值模拟/模化试验/综合流动传热性能/优化Key words
super slit finned tube heat exchangers/heat transfer/numerical simulation/modeling experiment/comprehensive flow and heat transfer performance/optimization分类
能源科技引用本文复制引用
屠琦琅,袁益超,胡晓红..翅片结构对双向开缝翅片管换热器性能的影响[J].化工学报,2016,67(11):4615-4622,8.
