Effect of the working fluids critical temperature on thermal performance for trilateral flash cycle and organic Rankine cycle

被引：0
|
作者：
Imre A.R. [1 ,2 ]
Ahmed A.M. [1 ,3 ]
机构：
[1] Budapest University of Technology and Economics, Faculty of Mechanical Engineering, Department of Energy Engineering, Műegyetem rkp. 3, Budapest
[2] Centre for Energy Research, Department of Thermohydraulics, POB. 49, Budapest
[3] Northern Technical University, Technical Engineering College of Kirkuk, Kirkuk
来源：
International Journal of Thermofluids | 2023年 / 20卷
关键词：
Critical temperature; Net power output; Subcritical cycles; Thermal efficiency; Working fluids;
D O I：
10.1016/j.ijft.2023.100417
中图分类号：
学科分类号：
摘要：
The critical temperature (Tcr) is one of the important thermophysical properties of the working fluid, and it has a crucial effect on the output parameters of thermodynamic cycles used for power generation. This study aims to show the effect of the working fluids Tcr on the cycle thermal performance (thermal efficiency (ηth) and net-work output (Wnet) at the same heat source/heat sink temperature. For this purpose, 13 alkanes and 10 halogenated alkanes working fluids were investigated. Two different kinds of subcritical cycles, namely the Organic Rankine Cycle (ORC) and Trilateral Flash Cycle (TFC), were investigated. Pure and mixed (with various compositions) working fluids were used. Finally, it has been shown that although the critical temperature is an important factor, it can be correlated with output parameters only by using chemically similar working fluids. © 2023 The Author(s)
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