热泵热水器外盘微通道冷凝器与外盘铜管冷凝器特性比较

doi:10.3969/j.issn.1000-1093.2015.06.027

兵工学报 ›› 2015, Vol. 36 ›› Issue (6): 1147-1152.doi: 10.3969/j.issn.1000-1093.2015.06.027

• 研究简报 • 上一篇

热泵热水器外盘微通道冷凝器与外盘铜管冷凝器特性比较

巫江虹¹，李会喜¹，游少芳²

（1.华南理工大学机械与汽车工程学院, 广东广州 510641； 2.青岛海信日立空调系统有限公司，山东青岛 266071)

收稿日期:2014-09-18 修回日期:2014-09-18 上线日期:2015-08-03
作者简介:巫江虹(1967—)，女，教授，博士生导师
基金资助:
广东省战略性新兴产业发展专项(粤发改高技术(2011)981号文); 广东省教育部产学研重点项目(2011A090200018)

Heat Transfer Characteristics of Micro-channel Condenser and Copper Pipe Condenser in Heat Pump Water Heater

WU Jiang-hong¹， LI Hui-xi¹， YOU Shao-fang²

(1.School of Mechanical and Automotive Engineering，South China University of Technology，Guangzhou 510641，Guangdong，China;2.HisenseHitachi Airconditioning System Co Ltd，Qingdao 266071，Shandong，China)

Received:2014-09-18 Revised:2014-09-18 Online:2015-08-03

摘要/Abstract

摘要： 为解决热泵热水器传统外盘铜管换热器与水箱外壁接触面积小、换热效率低的问题，将微通道强化换热技术应用于外盘结构的冷凝器，代替外盘铜管冷凝器。实验分析两种冷凝器的换热特性，研究分别配置外盘微通道冷凝器和外盘铜管冷凝器的热泵热水器系统性能的差异。实验结果表明：采用同一热泵主机，名义工况、水箱静态加热模式下，微通道冷凝器的压降低于外盘铜管冷凝器压降87%；外盘微通道冷凝器制热量高于外盘铜管冷凝器，夏季工况外盘微通道冷凝器制热量高37.5%，名义工况高8.7%，最小工况高19.6%；通过冷凝器分析计算，在名义工况下，外盘微通道冷凝器的效率高于外盘铜管冷凝器20%，其能量利用率较好。

关键词: 工程热物理, 微通道, 传热, 〖XCYONG-F.tif, +3.6mm。3.6mm〗

Abstract: For the small heat transfer contact area and low heat transfer efficiency between traditional outer-coil condenser and water tank, a micro-channel heat transfer technology is considered a prospect alternative to outer-coil condenser. The heat transfer characteristics and performances of two heat exchangers are compared experimentally. The results show that, for same heat pump system (except condenser), the average pressure drop of micro-channel condenser is 87% lower than that of copper pipe condenser in normal condition. The heating capacity of outer-coil micro-channel is relatively larger than those of outer-coil copper pipes, which is up to 37.5% in summer condition, 8.7% in normal condition and 19.6% in minimum condition. Exergy analytical calculation results show that the micro-channel condenser has better exergy efficiency than the other one, which is up to 20%.

Key words: engineering thermophysics, micro-channel, heat transfer, exergy

中图分类号:

TK513.5

巫江虹，李会喜，游少芳. 热泵热水器外盘微通道冷凝器与外盘铜管冷凝器特性比较[J]. 兵工学报, 2015, 36(6): 1147-1152.

WU Jiang-hong， LI Hui-xi， YOU Shao-fang. Heat Transfer Characteristics of Micro-channel Condenser and Copper Pipe Condenser in Heat Pump Water Heater[J]. Acta Armamentarii, 2015, 36(6): 1147-1152.

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热泵热水器外盘微通道冷凝器与外盘铜管冷凝器特性比较

Heat Transfer Characteristics of Micro-channel Condenser and Copper Pipe Condenser in Heat Pump Water Heater

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