Exergetic performance evaluation of ejector cooling system

被引：4

作者：

Tirmizi, Syed A. ^{[1
]}

Gandhidasan, P. ^{[1
]}

Zubair, Syed M. ^{[1
]}

机构：

[1] King Fahd Univ Petr & Minerals, Dept Mech Engn, Dhahran 31261, Saudi Arabia

来源：

INTERNATIONAL JOURNAL OF EXERGY | 2011年 / 9卷 / 01期

关键词：

air conditioning; ejector; COP; refrigerants; performance;

D O I：

10.1504/IJEX.2011.041431

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Ejector-cooling model is developed to calculate the entrainment ratio and the area ratio representing throat to nozzle area. The developed model is validated with available experimental data in the literature. Parametric studies using the refrigerant R134a as the working fluid show that the Coefficient of Performance (COP) of the system is increased by increasing the generator and evaporator temperatures while decreasing the condenser temperature. Furthermore, for the same set of operating temperatures and for various refrigerants considered, the highest COP is obtained using the refrigerant R717 and the lowest by using R114 as the working fluid. The second-law analysis shows that the major sources of irreversibility are the ejector followed by the generator.

引用

页码：80 / 98

页数：19

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