Experimental study on a multi-evaporator refrigeration system with variable area ratio ejector
Experimental study on a multi-evaporator refrigeration system with variable area ratio ejector
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可变面积比喷射器多蒸发器制冷系统实验研究
DOI：
10.1016/j.applthermaleng.2016.04.006
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发表时间：
2016-06-05
影响因子：
6.4
通讯作者：
Chen, Haoran
中科院分区：
文献类型：
--
作者：
Li, Cui;Yan, Jia;Chen, Haoran
本文介绍了采用常规调压阀（PRV）和变面积比喷射器的多蒸发器制冷系统（MERS）的实验研究。通过切换工作模式、调整引射器转速、调整引射器主轴等方法，对引射器的制冷量、功率消耗、引射器引射比等关键性能指标进行了评价。（1）用变面积比引射器代替传统的调压阀，可使MERS的能量效率提高12%，（2）充分的引射或冷却度大于2 ℃有利于引射器的高卷吸性能、低温蒸发器的大冷却能力和系统的低功耗;（3）喷嘴主轴位置对系统性能的影响明显。(C)2016爱思唯尔有限公司版权所有。
This paper describes an experimental study on a multi-evaporator refrigeration system (MERS) with conventional pressure regulating valve (PRV) and variable area ratio ejector. Some key performance indicators such as cooling capacity, power consumption and ejector entrainment ratio were evaluated by switching operating modes, adjusting superheat and tuning ejector spindle and so on. The results indicated that: (1) the energy efficiency of the MERS can be improved by up to 12% by replacing the conventional pressure regulating valve with the variable area ratio ejector, (2) sufficient superheat or superheat degree greater than 2 degrees C is conducive to high entrainment performance of the ejector, large cooling capacity of the low-temperature evaporator and low power consumption of the system, and (3) the effect of nozzle spindle position on the performance of the system is evident. (C) 2016 Elsevier Ltd. All rights reserved.