Energy and exergy analysis of a combined refrigeration and waste heat driven organic Rankine cycle system | Zendy

Ertuğrul Cihan | Zendy; Barış Kavasoğulları | Zendy

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Energy and exergy analysis of a combined refrigeration and waste heat driven organic Rankine cycle system

Author(s) -

Ertuğrul Cihan,

Barış Kavasoğulları

Publication year - 2016

Publication title -

thermal science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.339

H-Index - 43

eISSN - 2334-7163

pISSN - 0354-9836

DOI - 10.2298/tsci150324002c

Subject(s) - organic rankine cycle , exergy , working fluid , refrigeration , gas compressor , exergy efficiency , environmental science , thermodynamics , waste heat , heat pump and refrigeration cycle , process engineering , rankine cycle , waste heat recovery unit , nuclear engineering , heat exchanger , power (physics) , refrigerant , engineering , physics

Energy and exergy analysis of a combined refrigeration and waste heat driven organic Rankine cycle system were studied theoretically in this paper. In order to complete refrigeration process, the obtained kinetic energy was supplied to the compressor of the refrigeration cycle. Turbine, in power cycle, was driven by organic working fluid that exits boiler with high temperature and pressure. Theoretical performances of proposed system were evaluated employing five different organic fluids which are R123, R600, R245fa, R141b and R600a. Moreover, the change of thermal and exergy efficiencies were examined by changing the boiling, condensing and evaporating temperatures. As a result of energy and exergy analysis of the proposed system, most appropriate organic working fluid was determined as R141b.

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