磁力泵驱动两相冷却环路的换热特性

发布时间：2019-05-06 07:35

【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 k W,能效比(EER)为12.94;温差25℃时,制冷量最大为9.241 k W,EER为29.7。
[Abstract]:In order to study the working characteristics of two-phase cooling loop driven by magnetic pump, especially the law of starting characteristic and heat transfer performance varying with temperature difference, an experimental device of magnetic pump driving two-phase cooling loop was set up and tested by air enthalpy difference method. The results show that the two-phase cooling loop driven by magnetic pump starts rapidly and reaches a stable state within 600 s. Under the influence of liquid overheating in the evaporator, the pressure and temperature distribution of the system will fluctuate slightly during the start-up process. The cooling capacity increases with the increase of temperature difference, and increases at first and then decreases with the increase of mass flow rate of refrigerant. When the temperature difference is 10 鈩，

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