Next Article in Journal
The Entropy of Progressively Censored Samples
Previous Article in Journal
Deterministic Prediction of the Entropy Increase in a Sudden Expansion
Entropy 2011, 13(2), 422-436; doi:10.3390/e13020422
Article

On the Dynamic Robustness of a Non-Endoreversible Engine Working in Different Operation Regimes

1,* , 2,3
 and 4
1 Departamento de Física, Escuela Superior de Física y Matemáticas del IPN, Edif. 9 U.P. Zacatenco CP 07738, D.F., Mexico 2 Centro de Investigación en Computación del I.P.N., Av. Juan de Dios Bátiz s/n U.P. Zacatenco CP 07738, D.F., Mexico 3 Centre for Mathematical Biology, Department of Mathematics and Statistics Sciences, University of Alberta, Edmonton, Alberta T6G 2E1, Canada 4 Departamento de Formación Básica, Escuela Superior de Cómputo del IPN, Av. Miguel Bernal Esq. Juan de Dios Bátiz U.P. Zacatenco CP 07738, D.F., Mexico
* Author to whom correspondence should be addressed.
Received: 29 December 2010 / Revised: 17 January 2011 / Accepted: 20 January 2011 / Published: 8 February 2011
Download PDF [317 KB, uploaded 24 February 2015]

Abstract

In this work, we focused mainly in the analysis of stability of a non-endoreversible Curzon-Ahlborn engine working in an ecological regime. For comparison purposes we also include the Maximum Efficient Power (MEP) regime taking into account the engine time delays. When the system’s dynamic stability is compared with its thermodynamics properties (efficiency and power output), we find that the temperature ratio τ = T1/T2 represents a trade-off between stability and energetic properties. When we take the non-endoreversible case, τ can increases to values greater than R (where R is the non-endoreversible parameter) but not greater than one. We reformulate an important difference between this case and the other two, Maximum Power (MP) and MEP regime, in which τ = R. Finally, we demonstrated that the total time delay does not destabilize the steady state of system. It does not seem to play a role in the dynamic thermodynamic property trade-off.
Keywords: non-endoreversible; stability; ecological regime; efficient power; time delay non-endoreversible; stability; ecological regime; efficient power; time delay
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Share & Cite This Article

Export to BibTeX |
EndNote


MDPI and ACS Style

Sanchez-Salas, N.; Chimal-Eguia, J.C.; Guzman-Aguilar, F. On the Dynamic Robustness of a Non-Endoreversible Engine Working in Different Operation Regimes. Entropy 2011, 13, 422-436.

View more citation formats

Article Metrics

Comments

Citing Articles

[Return to top]
Entropy EISSN 1099-4300 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert