Finite time thermodynamics: Limiting performance of diffusion engines and membrane systems

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Journal Article
Journal of Physical Chemistry A, 2005, 109 (44), pp. 9997 - 10003
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In this paper, the limiting performance of membrane systems with inhomogeneous composition is studied within the class of fixed rate processes. The problem of maintaining a nonequilibrium state in such a system using minimal power (separation problem) and the problem of extracting maximal power from such a system (diffusion engine problem) are formulated and solved. Results are obtained for diffusion engines with constant and periodic contact between the working body and the reservoirs. © 2005 American Chemical Society.
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