Endoreversible four-reservoir chemical pump

A new cyclic model for the behaviour of a four-reservoir endoreversible chemical pump is proposed. The optimal relation between the coefficient of performance and the rate of energy pumping is derived by using finite-time thermodynamics or thermodynamic optimization. The optimal times of the four mass-transfer processes are also obtained. Moreover, the effects of the cyclic parameters on the coefficient of performance and the rate of energy pumping are studied by detailed numerical examples.