Next Article in Journal
On the Rarefied Gas Experiments
Next Article in Special Issue
Design and Analysis of the Domestic Micro-Cogeneration Potential for an ORC System Adapted to a Solar Domestic Hot Water System
Previous Article in Journal
A Note on the Entropy Force in Kinetic Theory and Black Holes
Previous Article in Special Issue
Thermodynamics and Stability of Non-Equilibrium Steady States in Open Systems
Open AccessArticle

Efficiency Bounds for Minimally Nonlinear Irreversible Heat Engines with Broken Time-Reversal Symmetry

by Qin Liu 1, Wei Li 1, Min Zhang 1, Jizhou He 1 and Jianhui Wang 1,2,3,*
1
Department of Physics, Nanchang University, Nanchang 330031, China
2
State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China
3
State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China
*
Author to whom correspondence should be addressed.
Entropy 2019, 21(7), 717; https://doi.org/10.3390/e21070717
Received: 19 June 2019 / Revised: 12 July 2019 / Accepted: 17 July 2019 / Published: 23 July 2019
(This article belongs to the Special Issue Thermodynamic Approaches in Modern Engineering Systems)
We study the minimally nonlinear irreversible heat engines in which the time-reversal symmetry for the systems may be broken. The expressions for the power and the efficiency are derived, in which the effects of the nonlinear terms due to dissipations are included. We show that, as within the linear responses, the minimally nonlinear irreversible heat engines can enable attainment of Carnot efficiency at positive power. We also find that the Curzon-Ahlborn limit imposed on the efficiency at maximum power can be overcome if the time-reversal symmetry is broken. View Full-Text
Keywords: heat engine; nonlinear irreversible; broken time-reversal symmetry; efficiency at maximum power heat engine; nonlinear irreversible; broken time-reversal symmetry; efficiency at maximum power
Show Figures

Figure 1

MDPI and ACS Style

Liu, Q.; Li, W.; Zhang, M.; He, J.; Wang, J. Efficiency Bounds for Minimally Nonlinear Irreversible Heat Engines with Broken Time-Reversal Symmetry. Entropy 2019, 21, 717.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop