Design parameters of a radiative heat engine

Generalized irreversible heat-engine experiencing a complex heat-transfer law

“…If q = 0 and U = 1, the model is reduced to the endoreversible Carnot engine [9][10][11][12][13][24][25][26][27][28][29][30][31][32][33][34][35][36][37]. If q = 0 and U > 1, the model is reduced to the irreversible Carnot-engine with heat resistance and internal irreversibility [18].…”

“…Some authors have assessed the effects of the linear phenomenological heat-transfer law q / D(T À1 ) and radiative heat-transfer law q / D(T 4 ) on the performance of endoreversible Carnot heat-engines [14,[24][25][26], Gutowicz-Krusion et al [27] first derived the efficiency bounds of an endoreversible Carnot heat-engine with one general heat-transfer law, i.e., the generalized convective heat-transfer law, q / (DT) n . Chen et al [28], Angulo-Brown et al [29] and Huleihil and Andresen [30] derived the optimal relation between power-output and efficiency based on this heat-transfer law.…”

Endoreversible Modeling and Optimization of a Multistage Heat Engine System with a Generalized Heat Transfer Law via Hamilton-Jacobi-Bellman Equations and Dynamic Programming

“…Gutowicz-Krusin et al [17] first derived the maximum power and the corresponding thermal efficiency bounds of an endoreversible Carnot heat engine with the generalized convective heat transfer law [q ∝ (∆T ) m ]. Some * corresponding author; e-mail: lgchenna@yahoo.com, lingenchen@hotmail.com authors have assessed the effects of the linear phenomenological heat transfer law [q ∝ ∆(T −1 )] and radiative heat transfer law [q ∝ ∆(T 4 )] on the performance of endoreversible Carnot heat engines [18][19][20][21][22].…”

Thermo-economics of an irreversible solar driven heat engine

“…As a major result, they showed that the ratio of the cold to the hot reservoir temperature must be less than 0.2 for an optimal design. The work carried out by Goktun et al [16] for an endoreversible radiative heat engine model has been extended to an irreversible radiative heat engine model by Ozkaynak [17]. He obtained the design parameters at maximum power output for radiative and convective boundary conditions.…”

“…In the study, he determined the optimum operating temperatures of the working fluid and solar collector. Goktun et al [16] investigated the design parameters of an endoreversible radiative heat engine at maximum power output conditions. As a major result, they showed that the ratio of the cold to the hot reservoir temperature must be less than 0.2 for an optimal design.…”