The Efficiencies Of Thermochemical Energy Transfer

ABSTRACT:
A general thermodynamic study of thermochemical energy transfer and work production processes is presented. Both gaseous systems in which the effluent of each reactor is not separated into the reactant and product species, and liquid/gas systems in which the effluent separates

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spontaneously into liquid and gas phases, are treated. The study extends to consideration of non-isothermal reactors, to the individual roles of reactor and heat exchanger in the work production processes, and to the significance of the intrinsic work of phase separation. The overall system efficiency is derived as the product of two efficiencies: the energy storage efficiency which defines the fraction of the input energy passed in chemical form to storage and the work recovery efficiency which defines the fraction of this stored energy available as output work.

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