山东农业大学学报（自然科学版）2016，Vol.47Issue(3)：451-454,4.DOI:10.3969/j.issn.1000-2324.2016.03.025
空冷散热器开缝翅片管束外空气流动传热特性研究
Study on Characteristics of Flow Heat Conduction outside the Pipe Bundle of Air-cooled Radiator with Slotted Fins
摘要
Abstract
It is an effective way to slot or punch on a plain fin surface for improving heat conduction performance. This paper obtained the variation laws of resistance and heat conduction coefficient with the frontal velocity outside a pipe bundle of a radiator with slotted fins from the numerical simulation for flow heat conduction characteristics of typical air-cooled pipe bundle and got a no-causal fitting relationship expression between the friction factor and Nusselt number versus Reynolds number. The results showed that air could make the effect on heat exchange resistance with the increase of the frontal velocity in a certain extent but the increased range in heat exchange was greater than pressure drop. There is a better consistence between simulation and experiment.关键词
空冷散热器/开缝翅片管/流动传热性能Key words
Air-cooled heat radiator/slotted finned pipe/flow heat conduction performance分类
能源科技引用本文复制引用
张薇,杜小泽,杨立军..空冷散热器开缝翅片管束外空气流动传热特性研究[J].山东农业大学学报（自然科学版）,2016,47(3):451-454,4.基金项目
国家重点基础研究发展计划:燃煤发电系统冷端高效释热、余热梯级利用及多冷源集成(2015CB251503) （2015CB251503）
华水青基资助项目:直接空冷系统的优化设计和关键技术研究(HSQJ2009024) （HSQJ2009024）
