Volume 101, Number 1, January 2013
|Number of page(s)||6|
|Published online||17 January 2013|
Coefficient of performance under optimized figure of merit in minimally nonlinear irreversible refrigerator
1 Department of Applied Physics, The University of Tokyo - 7-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan
2 Department of Physics, The University of Tokyo - 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
3 Division of Physics, Hokkaido University - Sapporo 060-0810, Japan
4 Departamento de Física Aplicada, and Instituto Universitario de Física Fundamental y Matemáticas (IUFFyM), Universidad de Salamanca - 37008 Salamanca, Spain, EU
Received: 14 July 2012
Accepted: 11 December 2012
We apply the model of minimally nonlinear irreversible heat engines developed by Izumida and Okuda (EPL, 97 (2012) 10004) to refrigerators. The model assumes extended Onsager relations including a new nonlinear term accounting for dissipation effects. The bounds for the optimized regime under an appropriate figure of merit and the tight-coupling condition are analyzed and successfully compared with those obtained previously for low-dissipation Carnot refrigerators in the finite-time thermodynamics framework. Besides, we study the bounds for the nontight-coupling case numerically. We also introduce a leaky low-dissipation Carnot refrigerator and show that it serves as an example of the minimally nonlinear irreversible refrigerator, by calculating its Onsager coefficients explicitly.
PACS: 05.70.Ln – Nonequilibrium and irreversible thermodynamics
© EPLA, 2013
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.