制冷技术Issue(4)：36-41,6.DOI:10.3969/j.issn.2095-4468.2012.04.111
点波板式换热器内流体流动换热及压降特性的实验研究
Experimental Investigation of Heat Transfer and Pressure Drop Characteristics of Fluid Flow in Dimple Plate Heat Exchanger
魏文建 1李华1
作者信息
- 1. 丹佛斯板式换热器中国研发中心,杭州 310018
- 折叠
摘要
Abstract
A novel type of brazed plate heat exchanger developed by Danfoss was introduced. Tests of single phase heat transfer and evaporation with refrigerant R410a were performed. Performance on heat transfer and pressure drop for the dimple plate heat exchanger and the traditional herringbone plate heat exchanger were investigated experimentally. It is shown that the dimple plate heat exchanger has a better performance on heat transfer and pressure drop as a single phase heat transfer device. To compare with the herringbone plate heat exchanger under large Re numbers, the heat transfer performance in the dimple plate heat exchanger increases by more than 20%, and the frictional factor decreases to about 1/4 of that for the herringbone structure. Furthermore, good performance on heat transfer and pressure drop was also found in the evaporation tests. The performance of heat transfer and pressure drop would be enhanced for the cases of large Re numbers of the refrigerant.关键词
板式换热器/换热/压降/点波Key words
Plate Heat Exchanger/Heat Transfer/Pressure Drop/Dimple引用本文复制引用
魏文建,李华..点波板式换热器内流体流动换热及压降特性的实验研究[J].制冷技术,2012,(4):36-41,6.
