Endoreversible heat-engines for maximum power-output with fixed duration and radiative heat-transfer law

Optimal configuration of a class of endoreversible heat engines for maximum efficiency with radiative heat transfer law

“…One can show that max 1 / W Q μ = ∂ ∂ , i.e., μ is a measure of the sensitivity of max W with respect to small changes in the constraint, 1 const. Q = One can see that μ can be both positive and negative, and μ vanishes for the maximum power output, as expected [23,59,60] . To simplify the subsequent discussion, μ≥0 is assumed.…”

“…In general, heat transfer is not necessarily linear and also obeys other laws; the heat transfer laws have significant influences on the configuration and performance of heat engine cycles [51][52][53][54][55][56][57][58] . Song et al [59,60] determined the optimal configuration of an endoreversible heat engine for the maximum efficiency objective and the maximum power output objective with linear phenomenological heat transfer law [59] and those for the maximum power output with fixed duration and radiative heat transfer law [60] . In this paper, based on refs.…”

“…In this paper, based on refs. [23,60], the optimal configuration of an endoreversible heat engine for the maximum efficiency objective is obtained with the fixed duration of cycle, fixed input energy and radiative heat transfer law […”

Non-Instantaneous Adiabats in Finite Time

“…Particularly, the optimal configuration of heat engines was studied (Rubin, 1979a), and it was introduced a procedure in which the power output of cycle is taken as a function of the compression ratio by using the parameter ~ , where max V and min V are the maximum and the minimum volumes spanned in the cycle, respectively (Gutkowicz-Krusin et al, 1978). More recently, this subject has been also studied by other authors (Badescu, 2004;Amelkin, et al, 2004Amelkin, et al, , 2005Song et al, 2006Song et al, , 2007. Even more Angulo-Brown (1991) introduced an optimization criterion of merit for the Curzon and Ahlborn cycle taking into account entropy production, the ecological criterion, through the function,…”

Optimal paths for a light-driven engine with a linear phenomenological heat transfer law

“…Heat transfer laws not only have significant influences on the performance of given thermodynamic processes [31][32][33][34][35][36][37], but also influence the optimal configurations of thermodynamic processes for the given optimization objectives. Song et al [38][39][40][41] and Chen et al [42] determined the optimal configurations of endoreversible heat engines for maximum power output objective and maximum efficiency objective with linear phenomenological heat transfer law [ ( ) [38], and those for maximum power output objective [39] and maximum efficiency objective [40] with the radiative heat transfer law [ ( )…”