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Working Fluid Selection for Organic Rankine Cycle and Other Related Cycles

The world's energy demand is still growing, partly due to the rising population, partly to increasing personal needs. This growing demand has to be met without increasing (or preferably, by decreasing) the environmental impact. One of the ways to do so is the use of existing low-temperature hea...

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Bibliographic Details
Other Authors: Imre, Attila R. (Editor)
Format: Electronic Book Chapter
Language:English
Published: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute 2020
Subjects:
History of engineering & technology
adiabatic expansion
isentropic expansion
T-s diagram
working fluid classification
optimization
single-screw expander
vapor-liquid two-phase expansion
thermal efficiency
net work output
heat exchange load of condenser
cis-butene
HFO-1234ze(E)
ORC working fluids
temperature-entropy saturation curve
saturation properties
wet and dry fluids
ideal-gas heat capacity
Rankine cycle
ORC
biomass
fluid mixtures
hydrocarbons
working fluid
selection method
volumetric expander
thermodynamic analysis
wet zeotropic mixture
single screw expander
organic Rankine cycle
R441A
R436B
R432A
molecular degree of freedom
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Summary:The world's energy demand is still growing, partly due to the rising population, partly to increasing personal needs. This growing demand has to be met without increasing (or preferably, by decreasing) the environmental impact. One of the ways to do so is the use of existing low-temperature heat sources for producing electricity, such as using power plants based on the organic Rankine cycle (ORC) . In ORC power plants, instead of the traditional steam, the vapor of organic materials (with low boiling points) is used to turn heat to work and subsequently to electricity. These units are usually less efficient than steam-based plants; therefore, they should be optimized to be technically and economically feasible. The selection of working fluid for a given heat source is crucial; a particular working fluid might be suitable to harvest energy from a 90 ℃ geothermal well but would show disappointing performance for well with a 80 ℃ head temperature. The ORC working fluid for a given heat source is usually selected from a handful of existing fluids by trial-and-error methods; in this collection, we demonstrate a more systematic method based on physical and chemical criteria.
Physical Description:1 electronic resource (148 p.)
ISBN:books978-3-03936-075-8
9783039360741
9783039360758
Access:Open Access

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