Efficiency at maximum power in the low-dissipation limit
Hasselt University - B-3590 Diepenbeek, Belgium, EU
Received: 22 October 2012
Accepted: 13 December 2012
We present a general thermodynamic framework for the low-dissipation limit. In the case of an iso-thermal engine, which converts chemical work into mechanical work, this theory predicts an efficiency at maximum power η* identically equal to 1/2. For multi-bath thermal machines, we derive bounds for efficiency at maximum power, namely ηrev/2 ⩽ η* ⩽ ηrev/(2 − ηrev), where ηrev is the efficiency of the corresponding reversible scenario.
PACS: 05.70.Ln – Nonequilibrium and irreversible thermodynamics / 05.20.-y – Classical statistical mechanics
© EPLA, 2013