Thermodynamic comparison of two novel combined systems based on solar loop heat pipe evaporator

V. Beygzadeh, Sh. Khalilarya and I. Mirzaee

Energy, 2020, vol. 206, issue C

Abstract: We propose two novel solar thermal cogeneration systems for efficient solar energy conversion. The systems considered are loop heat pipe based solar CHP system with single stage turbine and loop heat pipe based solar CHP system with double stage turbine. A perfect thermodynamic analysis of the proposed systems are reported. Energy and exergy analyses are used to identifying the exergy destruction rate in any component and investigate the systems performance. The results show that the energy and exergy efficiencies of the solar CHP system with double stage turbine are 71.76% and 11.26% respectively while energy and exergy efficiencies of the solar CHP system with single stage turbine are 71.76% and 11.22% respectively. The net power rate of the CHP system increases about 0.4% by using double stage turbine. The results also showed that the main source of the exergy destruction is the solar loop heat pipe evaporator for both considered systems. Furthermore, results revealed that our novel system is a promising option for applications to solar systems and processes.

Keywords: Energy efficiency; Exergy efficiency; Loop heat pipe; Solar; Regenerative ORC; CHP (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:206:y:2020:i:c:s0360544220312524

DOI: 10.1016/j.energy.2020.118145

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