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Comment on "Carnot efficiency at divergent power output" (and additional discussion)
Y. Apertet
In a recent Letter [EPL, 118 (2017) 40003], Polettini and Esposito claimed that it is theoretically possible for a thermodynamic machine to achieve Carnot efficiency at divergent p…
Causality in thermoelectric systems: Insights from block diagrams
Y. Apertet
While Carnot's model engines demonstrate ideal performances regarding conversion efficiency, they cannot be actually used as energy converters since they are non causal systems. Su…
Revisiting Feynman's ratchet with thermoelectric transport theory
Y. Apertet, H. Ouerdane, C. Goupil +1
We show how the formalism used for thermoelectric transport may be adapted to Smoluchowski's seminal thought experiment also known as Feynman's ratchet and pawl system. Our analysi…
Efficiency at maximum power of thermally coupled heat engines
Y. Apertet, H. Ouerdane, C. Goupil +1
We study the efficiency at maximum power of two coupled heat engines, using thermoelectric generators (TEGs) as engines. Assuming that the heat and electric charge fluxes in the TE…
Irreversibilities and efficiency at maximum power of heat engines: illustrative case of a thermoelectric generator
Y. Apertet, H. Ouerdane, C. Goupil +1
Thermoelectric generators are particularly suitable to investigate the irreversible processes which govern the coupled transport of matter and heat in solid-state systems. We study…