Volume 83, Number 6, September 2008
|Number of page(s)||6|
|Published online||08 September 2008|
Molecular kinetic analysis of a finite-time Carnot cycle
Division of Physics, Hokkaido University - Sapporo 060-0810, Japan
Accepted: 25 July 2008
We study the efficiency at the maximal power of a finite-time Carnot cycle of a weakly interacting gas which we can regard as a nearly ideal gas. In several systems interacting with the hot and cold reservoirs of the temperatures and , respectively, it is known that , which is often called the Curzon-Ahlborn (CA) efficiency . For the first time numerical experiments to verify the validity of are performed by means of molecular dynamics simulations and reveal that our does not always agree with , but approaches in the limit of . Our molecular kinetic analysis explains the above facts theoretically by using only elementary arithmetic.
PACS: 05.70.Ln – Nonequilibrium and irreversible thermodynamics
© EPLA, 2008
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