Choosing the Most Suitable Working Fluid for a CTEC

This study aims to explore additional fluids beneficial for coastal thermal energy converter (CTEC) operation. Ammonia’s thermodynamic properties, characterized by higher condensation temperatures and pressures, demand significantly elevated operating pressures, resulting in a substantial energy loa...

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Bibliographic Details
Published in:Energies (Basel) 2024-05, Vol.17 (9), p.2181
Main Authors: Achkienasi, Aliet, Silva, Rodolfo, Mendoza, Edgar, Luna, Luis D.
Format: Article
Language:English
Subjects:
Ammonia
CFD numerical modelling for CTEC
coastal thermal energy conversion
Coasts
Cooling
CTEC experiments
Design
Efficiency
Electricity
Electricity distribution
Fluid dynamics
Fluids
Force and energy
Heat exchangers
Heat transfer
Laboratories
Optimization
Simulation
Simulation methods
Thermal energy
Thermodynamics
Turbines
working fluid
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Summary:This study aims to explore additional fluids beneficial for coastal thermal energy converter (CTEC) operation. Ammonia’s thermodynamic properties, characterized by higher condensation temperatures and pressures, demand significantly elevated operating pressures, resulting in a substantial energy load for efficient operation. Thus, exploring alternatives such as R134a becomes crucial, particularly considering its potential as a better working fluid for power generation in a Rankine cycle. The research methodology involves employing computational fluid dynamics (CFD) simulations alongside experimental investigations to examine the performance of an axial turbine concept under different working fluids. The results obtained indicate that R134a is the most appropriate working fluid for an axial turbine within a CTEC, outperforming ammonia, thereby implying significantly better operational efficiency.
ISSN:1996-1073
1996-1073
DOI:10.3390/en17092181