磁力泵驱动两相冷却环路的换热特性

doi:10.11949/j.issn.0438-1157.20150551

化工学报 ›› 2015, Vol. 66 ›› Issue (11): 4388-4393.DOI: 10.11949/j.issn.0438-1157.20150551

磁力泵驱动两相冷却环路的换热特性

马跃征, 马国远, 张双

北京工业大学环境与能源工程学院, 北京 100124

收稿日期:2015-05-04 修回日期:2015-06-17 出版日期:2015-11-05 发布日期:2015-11-05
通讯作者: 马国远
基金资助:
国家自然科学基金项目(51376010)。

Heat transfer characteristics of two-phase cooling loop driven by magnetic pump

MA Yuezheng, MA Guoyuan, ZHANG Shuang

College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China

Received:2015-05-04 Revised:2015-06-17 Online:2015-11-05 Published:2015-11-05
Supported by:
supported by the National Natural Science Foundation of China (51376010).

摘要/Abstract

摘要：

为研究磁力泵驱动两相冷却环路的工作特性,特别是启动特性和换热性能随温差的变化规律,搭建了磁力泵驱动两相冷却环路的实验装置,并利用空气焓差法对其进行测试。结果表明:磁力泵驱动两相冷却环路启动迅速,在600 s内达到稳定状态,受蒸发器内液体过热的影响,启动过程中系统的压力和温度分布会产生微小波动;制冷量随温差的增大而增大,随制冷剂质量流量的增加呈先增大后减小的趋势。温差10℃时,系统最大制冷量为3.429 kW,能效比(EER)为12.94;温差25℃时,制冷量最大为9.241 kW,EER为29.7。

关键词: 磁力泵驱动, 两相冷却, 能效比, 启动特性

Abstract:

An experimental setup of two-phase cooling loop driven by magnetic pump was built. The performance and start-up characteristics of the two-phase cooling loop are evaluated by the air enthalpy difference method. Experimental results show that the two-phase cooling loop driven by magnetic pump presents excellent performance for energy saving. Its start-up is quick and the system reaches a steady state after 600 s. The fluctuations of pressure and temperature in the system are caused by the superheat of the liquid refrigerant in the evaporator during the start-up. The cooling capacity of the system increases with the temperature difference, and increases rapidly with the mass flow rate and then decreases slowly. When the temperature difference is 10℃, the maximum cooling capacity is 3.429 kW and the energy efficiency ratio is 12.94. When the temperature difference is 25℃, they reach 9.241 kW and 29.7, respectively.

Key words: magnetic pump-driven, two-phase cooling, energy efficiency ratio, start-up characteristics

中图分类号:

TU831.6

马跃征, 马国远, 张双. 磁力泵驱动两相冷却环路的换热特性[J]. 化工学报, 2015, 66(11): 4388-4393.

MA Yuezheng, MA Guoyuan, ZHANG Shuang. Heat transfer characteristics of two-phase cooling loop driven by magnetic pump[J]. CIESC Journal, 2015, 66(11): 4388-4393.

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磁力泵驱动两相冷却环路的换热特性

Heat transfer characteristics of two-phase cooling loop driven by magnetic pump

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