Endo-irreversible thermo-mechanical Carnot engine with new concept of entropy production action coefficient

Thermostatics of Carnot engines has been extended by more recent research based on endo-reversible model. Our model assumes exo-reversibility but endo-irreversibility to determine new upper-bound to thermomechanical conversion. We propose a functional expression of entropy production related to cycl...

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Bibliographic Details
Published inEuropean physical journal. Applied physics Vol. 94; no. 3; p. 30901
Main Authors Feidt, Michel, Feidt, Renaud
Format Journal Article
LanguageEnglish
Published Les Ulis EDP Sciences 01.06.2021
Subjects
Efficiency
Energy
Engines
Entropy
Equilibrium
Heat transfer
Optimization
Physics
Thermodynamics
Upper bounds
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Summary:Thermostatics of Carnot engines has been extended by more recent research based on endo-reversible model. Our model assumes exo-reversibility but endo-irreversibility to determine new upper-bound to thermomechanical conversion. We propose a functional expression of entropy production related to cycle transformation durations. This approach analyses the energy, entropy and power consequences. We introduce a new concept of entropy production actions that results in three sequential optimums: maximum energy related to transformation durations, maximum energy associated with equipartition of entropy actions, optimal power for given cycle period.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:1286-0042
1286-0050
DOI:10.1051/epjap/2021200390