Investigation of the potential of R717 blends as working fluids in the organic Rankine cycle (ORC) for ocean thermal energy conversion (OTEC)

Min-Hsiung Yang and Rong-Hua Yeh

Energy, 2022, vol. 245, issue C

Abstract: Ammonia, R717, has been considered as a useful working fluid of the organic Rankine cycle (ORC) in the OTEC. The aim of this study is to investigate the potentials of R717 blends on thermodynamic and economic performances to surpass pure R717 used in an OTEC. The environmentally friendly refrigerants of R32 and R1234YF are considered and selected as the components of R717 blends. The effects of mass fraction ratios for R717 blends and four pinch points of conditions for the ORC are applied to evaluate the net power output and energy cost of the OTEC.

Keywords: Mass fraction ratio; Optimum; Performance; R717/R32; R717/R1234YF (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (5)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:245:y:2022:i:c:s0360544222002201

DOI: 10.1016/j.energy.2022.123317

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