Effects of mass transfer and mass leakage on performance of four-reservoir chemical pumps
Source: Journal of the Energy Institute, Volume 82, Number 3, September 2009 , pp. 176-179(4)
Publisher: Maney Publishing
Abstract:A cyclic model of a four-reservoir chemical pump with irreversible mass transfer and mass leakage is put forward. The optimal relation between the coefficient of performance (COP) and the rate of energy pumping is derived using finite time thermodynamics or thermodynamic optimisation. The mass leakage makes the performance characteristic of the cycle changes from a monotonic decreasing function to a parabolic-like one. There exists a maximum COP. Both the maximum COP and the corresponding rate of energy pumping are derived analytically. The results obtained herein can provide some new theoretical instructions for the optimal design of many devices, such as chemical reactive devices, mass exchangers, photochemical cells and solid state devices.
Document Type: Research Article
Publication date: 2009-09-01
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