A review of organic rankine cycles (ORCs) for the recovery of low-grade waste heat

T.C. Hung, T.Y. Shai and S.K. Wang

Energy, 1997, vol. 22, issue 7, 661-667

Abstract: The efficiencies of ORCs using cryogens such as benzene, ammonia, R11, R12, R134a and R113 as working fluids have been analyzed parametrically and compared. For operation between two isobaric curves, the system efficiency increases and decreases for wet and dry fluids, respectively, and the isentropic fluid achieves an approximately constant value for high turbineinlet temperatures. These effects are primarily due to the different slopes and shapes of the saturation vapor curves of the fluids. Isentropic fluids are most suitable for recovering low-temperature waste heat. Freons and their alternatives have been studied and shown similar system responses in ORCs.

Date: 1997
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Citations: View citations in EconPapers (219)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:22:y:1997:i:7:p:661-667

DOI: 10.1016/S0360-5442(96)00165-X

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