Calculation and analysis on transcritical ejector refrigeration cycle with CO2

被引：0

作者：

Wang, Fei ^{[1
]}

Yang, Yong ^{[2
]}

Shen, Shengqiang ^{[2
]}

机构：

[1] School of Architecture and Engineering, China University of Mining and Technology, Xuzhou 221116, Jiangsu

[2] Key Laboratory for Sea Water Desalination of Liaoning Province, Dalian University of Technology, Dalian 116024, Liaoning

来源：

Huagong Xuebao/CIESC Journal | 2013年 / 64卷 / 07期

关键词：

CO[!sub]2[!/sub; Ejector refrigeration; Transcritical;

D O I：

10.3969/j.issn.0438-1157.2013.07.013

中图分类号：

学科分类号：

摘要：

The research on transcritical ejector refrigeration cycle with CO2 is rarely reported. In this study, a thermodynamic model for a transcritical ejector refrigeration cycle is established. The changes of ejector entrainment ratio, the cycle performance coefficient (COP) and effective performance coefficient (COPm) with cooler pressure, cooler outlet temperature, heater pressure, heater outlet temperature and evaporation temperature are presented. As the cooler pressure increases, the entrainment ratio of ejector decrease, the cycle COP and COPm first increase and then decrease, with optimum values at some cooler pressures. As the outlet temperature of cooler increases, both values of COP and COPm decrease. With the increase of heater pressure, heater outlet temperature and evaporation temperature, the ejector entrainment ratio, the cycle COP and COPm are improved, while the cycle COP decreases with the increase of heater outlet temperature. © All Rights Reserved.

引用

页码：2400 / 2404

页数：4

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