Organic Rankine-cycle power systems working fluids study: Topical report No. 1: Fluorinol 85. [85 mole % trofluoroethanol in water]

Jain, Meenal; Demirgian, J.C.; Cole, R. L.

doi:10.2172/6034570

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“…Researching the fluid stability issue identified two studies that had comprehensively studied this issue. One fluid study involved toluene, the other Fluorinal85 (1,2). Even though a study directly involving Fluorinal50 was not discovered, it is not unreasonable to extend the stability research to this fluid.…”

Section: Fluid Selection-mentioning

confidence: 99%

Final Report. Conversion of Low Temperature Waste Heat Utilizing Hermetic Organic Rankine Cycle

Fuller¹

2005

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Section: Fluid Selection-mentioning

confidence: 99%

Final Report. Conversion of Low Temperature Waste Heat Utilizing Hermetic Organic Rankine Cycle

Fuller¹

2005

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Water Mixtures as Working Fluids in Organic Rankine Cycles

et al. 2019

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This work explores the possibility to adopt in organic Rankine cycle (ORC) plants mixtures of water (acting as solvent) plus an organic compound (acting as solute) as the working fluid. Initially an evaluation of the thermodynamic properties of the mixtures is performed, in order to assess their properties, and to point out the molar fractions which entail a near-azeotropic behaviour. Four species from three different classes of chemical compounds are investigated: 2,2,2-trifluoroethanol and n-butanol for alcohols, where the first is fluorinated, acetonitrile for nitrile class and 2-methylpyrazine as a heterocyclic aromatic compound. Simultaneously, the thermal stability of the pure substances considered as the possible solute for the mixtures is experimentally investigated in order to estimate the temperature applicability range. The ORC plant performance, from a low-enthalpy geothermal heat source (hot water stream from 100 to 200 °C), adopting the selected mixtures as the working fluid is finally evaluated, and the analysis includes a preliminary discussion on the turbine design; results are compared with respect to the reference case of a hypothetical plant adopting water as the working fluid.

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Organic Rankine-cycle power systems working fluids study: Topical report No. 1: Fluorinol 85. [85 mole % trofluoroethanol in water]

Cited by 2 publications

References 1 publication

Final Report. Conversion of Low Temperature Waste Heat Utilizing Hermetic Organic Rankine Cycle

Final Report. Conversion of Low Temperature Waste Heat Utilizing Hermetic Organic Rankine Cycle

Water Mixtures as Working Fluids in Organic Rankine Cycles

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