Analysis and comparison performance of four organic Rankine cycle configurations for a hot, non-temperate climate solar project: Thermodynamic, economic, exergoenvironmental, and environmental

被引：0
作者：
Lekané, Nelson Nguefack [1 ]
Njock, Julbin Paul [2 ]
Ngangué, Max Ndamé [3 ]
Lontsi, Frederic [1 ]
Sosso, Olivier Thierry [2 ]
机构：
[1] Laboratory of Energy, Higher National Polytechnic School of Douala, University of Douala, P.O. BOX 2701, Douala
[2] Laboratory of Thermal and Environment, Advanced Teacher's Training College for Technical Education of Douala, University of Douala, P.O. BOX 1872, Douala
[3] Technology and Applied Sciences Laboratory, University Institute of Technology of Douala, University of Douala, P.O. BOX 8698, Douala
来源：
Energy Reports | 2024年 / 12卷
关键词：
5E analysis; Hot; non-temperate climate; Regenerative three-stage series ORC; Solar micropower plants; Solar project;
D O I：
10.1016/j.egyr.2024.11.015
中图分类号：
学科分类号：
摘要：
This paper aims to compare the energy, exergy, economic, exergoenvironmental, and environmental (5E) performance of four different organic Rankine cycle (ORC) configurations using benzene as the working fluid, in a solar project in a hot, non-temperate climate. The configurations analyzed include a two-stage series ORC (DSORC) and a three-stage series ORC (TSORC), as well as their respective regenerative variants (R-DSORC) and (R-TSORC). To ensure a fair assessment, a computer program was developed with Engineering Equation Solver (EES) software in order to study the influence of operating parameters on the performance of these systems, providing them with the same total thermal potential. Under basic operating conditions, simulation results show that R-TSORC is the most competitive, with a net power output of 1642 kW, an energy utilization factor of 18.11%, and an exergy efficiency of 25.06%. In addition, it achieves an annual emission reduction in CO2 equivalent of 34210 tonnes, with an exergetic sustainability index of 0.2404. Consequently, the payback period is 4.155 years, and the levelized cost of electricity is 0.06479 $/kWh, which is lower than the cost of self-generated electricity for industries in Cameroon. The results reveal that R-TSORC could be deployed in solar micropower plants located in hot, non-temperate climates. Its ability to efficiently harness solar energy makes it a relevant solution for regions facing problems of access to electricity. © 2024 The Authors
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页码：5529 / 5550
页数：21
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