TY - JOUR
T1 - Stability analysis of an endoreversible heat engine with Stefan-Boltzmann heat transfer law working in maximum-power-like regime
AU - Chimal-Eguía, J. C.
AU - Barranco-Jiménez, M. A.
AU - Angulo-Brown, F.
PY - 2006/3
Y1 - 2006/3
N2 - A local stability study of an endoreversible Stefan-Boltzmann (SB) engine, working in a maximum-power-like regime, is presented. This engine consists of a Carnot engine that exchanges heat with heat reservoirs T1 and T2, (T1 > T2) through a couple of thermal links, both having the same conductance g. In addition, the working fluid has the same heat capacity C in the two isothermal branches of the cycle. From the local stability analysis we conclude that the SB engine is stable for every value of g, C and τ = T2/T1. After a small perturbation, the system decays to the steady state with either of two different relaxation times; both being proportional to C/g, and τ. Finally, when we plot some of the thermodynamic properties in the steady state versus τ, we find how an increment of τ can improve the stability of the system, at the same decreasing the efficiency and the power of the system. This suggests a compromise between the stability and the energetic properties of the engine driven by τ.
AB - A local stability study of an endoreversible Stefan-Boltzmann (SB) engine, working in a maximum-power-like regime, is presented. This engine consists of a Carnot engine that exchanges heat with heat reservoirs T1 and T2, (T1 > T2) through a couple of thermal links, both having the same conductance g. In addition, the working fluid has the same heat capacity C in the two isothermal branches of the cycle. From the local stability analysis we conclude that the SB engine is stable for every value of g, C and τ = T2/T1. After a small perturbation, the system decays to the steady state with either of two different relaxation times; both being proportional to C/g, and τ. Finally, when we plot some of the thermodynamic properties in the steady state versus τ, we find how an increment of τ can improve the stability of the system, at the same decreasing the efficiency and the power of the system. This suggests a compromise between the stability and the energetic properties of the engine driven by τ.
UR - http://www.scopus.com/inward/record.url?scp=33644683382&partnerID=8YFLogxK
U2 - 10.1007/s11080-006-7266-5
DO - 10.1007/s11080-006-7266-5
M3 - Artículo
SN - 1230-1612
VL - 13
SP - 43
EP - 53
JO - Open Systems and Information Dynamics
JF - Open Systems and Information Dynamics
IS - 1
ER -