多区域开窗翅片的热力性能实验研究

作者：钟昌雄1，李蔚1，张文华2 日期：2008-08-14/span> 浏览：3929 查看PDF文档

多区域开窗翅片的热力性能实验研究

钟昌雄1，李蔚1，张文华2
(1.浙江大学 热工与动力系统研究所,浙江 杭州 310027; 2.上海双桦汽车零配件股份有限公司,上海 201417)

摘要：在汽车空调综合性能测试台上对7种不同结构参数的百叶窗翅片进行了传热和流动阻力的性能实验。分析比较了百叶窗翅片表面开窗区域对其传热和阻力性能的影响，总结出了表面开窗区域多，对无量纲传热j因子和摩擦阻力f因子影响较大的特点；同时，采用(j/f)1/3因子综合评价了多区域开窗翅片的强化传热效果。研究结果表明，翅片表面多区域开窗对强化传热的影响非常显著。
关键词：汽车空调；平行流冷凝器；多区域开窗；热力性能
中图分类号：TP273文献标识码：A文章编号：1001-4551(2008)07-0011-04

Experimental study on heat transfer performance of the multi-region louver fins
ZHONG Chang-xiong1, LI Wei1, ZHANG Wen-hua2
(1.The Institute of Thermal Engineering & Dynamics System，Zhejiang University， Hangzhou 310027， China；
2.Shuanghua Motor Parts Company of Shanghai，Shanghai 201417， China)
Abstract: Experimental study on heat transfer performance of multi-region louver fins with 7 different structural parameters was carried out on a performance of automobile air conditioner test facility. Influence of the fin surfaces louver region on heat transfer and flow resistance characteristic was compared and analyzed, in which the louver regions have a strong influence on factors j and f. Simultaneously, the factor ( j / f)1/3 was used to evaluate the enhanced heat transfer effect of the 7 kinds of louver regions fins. Results show that multi-region louver has the most obvious effect in enhancing heat transfer.
Key words: automobile air conditioner； parallel flow condenser； multi-region louver； heat transfer performance
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