Energy, exergy and economic analysis of combined solar ORC-VCC power plant | Zendy

Yashar Aryanfar | Zendy; Mamdouh El Haj Assad | Zendy; Ali Khosravi | Zendy; Rahman S M Atiqure | Zendy; Shubham Sharma | Zendy; Jorge Luis GarcíaAlcaraz | Zendy; Reza Alayi | Zendy

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Energy, exergy and economic analysis of combined solar ORC-VCC power plant

Author(s) -

Yashar Aryanfar,

Mamdouh El Haj Assad,

Ali Khosravi,

Rahman S M Atiqure,

Shubham Sharma,

Jorge Luis GarcíaAlcaraz,

Reza Alayi

Publication year - 2022

Publication title -

international journal of low-carbon technologies

Language(s) - English

Resource type - Journals

eISSN - 1748-1325

pISSN - 1748-1317

DOI - 10.1093/ijlct/ctab099

Subject(s) - parabolic trough , organic rankine cycle , exergy , exergy efficiency , turbine , environmental science , thermal efficiency , process engineering , renewable energy , working fluid , rankine cycle , solar energy , power station , electricity generation , overall pressure ratio , vapor compression refrigeration , degree rankine , mechanical engineering , engineering , power (physics) , thermodynamics , electrical engineering , chemistry , gas compressor , physics , refrigerant , organic chemistry , combustion

A renewable energy source, especially solar energy, is one of the best alternatives for power generation in rural areas. Organic Rankine cycle (ORC) can be powered by a low-grade energy source, suitable for small-scale power production in rural areas. This study investigates the combined power generation and cooling system using the combination of ORC and vapor compression cycle (VCC), where ORC is powered by a parabolic trough solar collector. Thermodynamic and economic simulation of the system is conducted for four different working fluids, which are R245fa, R114, R600 and R142b. It can be concluded that the thermal efficiency of the power plant increases by using the combined ORC-VCC system. The effect of thermodynamic parameters such as turbine inlet temperature and pressure on the system performance is also discussed, and the optimal design values are provided. The results show that the power plant uses R245fa as the minimum exergy destruction rate. The study indicates that R114 gives minimum cost function (PCEU) for 137°C turbine inlet temperature while the minimum PCEU for R142b is obtained at a turbine inlet pressure of 2500 kPa. Finally, the study indicates that the inlet pressure of the turbine has a significant impact on the system cost and thermal efficiency.

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