Thermodynamic investigation of a booster-assisted ejector refrigeration system
Thermodynamic investigation of a booster-assisted ejector refrigeration system
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DOI：
10.1016/j.applthermaleng.2016.05.067
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发表时间：
2016-07-05
影响因子：
6.4
通讯作者：
Han, Jitian
中科院分区：
文献类型：
--
作者：
Zhao, Hongxia;Zhang, Ke;Han, Jitian
为了提高弹出器制冷系统的性能，在弹出器之前添加助推器以增强次级流动压力，这称为增强辅助制冷系统。根据质量，动量和能量保护，提出了一种用于最佳性能预测的弹出器的1D模型，并通过实验数据进行了验证。根据热力学的第一和第二定律，对助推器喷射器制冷系统的工作特性进行了详细研究，并与常规的喷射器制冷系统和基于压缩机的制冷系统进行了比较。还研究了基于热能和COPW的助推器出口压力的影响，并研究了弹出器的夹带比和面积比。还计算并分析了助力辅助喷射器制冷系统的组件并分析了驱逐的破坏率。讨论了减少毁灭的方式的方法。 （c）2016 Elsevier Ltd.保留所有权利。
In order to improve performance of ejector refrigeration system, a booster is added before an ejector to enhance secondary flow pressure, which is called a booster assisted refrigeration system. Based on mass, momentum and energy conservation, a 1D model of ejector for optimal performance prediction was presented and validated with experimental data. A detailed study of working characteristics of the booster assisted ejector refrigeration system was carried out and compared against conventional ejector refrigeration system and compressor based refrigeration system, on the basis of first and second laws of thermodynamics. Effects of booster outlet pressure on COPth based on thermal energy and COPw based on work input, and also on entrainment ratio and area ratio of ejector were studied. The exergy destruction rates were also computed and analyzed for components of the booster-assisted ejector refrigeration system. Ways to reduce exergy destruction were discussed. (C) 2016 Elsevier Ltd. All rights reserved.