... engine experiencing a complex heat transfer law. Appl. Energy, 2008, 85(1):52-60. [52] Li J, Chen L, Sun F. Ecological performance of an endoreversible Carnot heat engine with complex heat transfer ... irreversibility, in which the transfer between the working fluid and the heat reservoirs obeys a complex heat transfer law, including generalized convective heat transfer law and generalized radiative ... optimal relationship of the endoreversible [50] and irreversible [51] Carnot heat engines by using a complex heat transfer law, including generalized convective heat transfer law [ () n QT ∝∆ ][18,...