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Reversible thermodynamic cycle for AMTEC power conversion

Description: The thermodynamic cycle appropriate to an AMTEC (alkali metal thermal-to-electric converter) cell is discussed for both liquid- and vapor-fed modes of operation, under the assumption that all processes can be performed reversibly. In the liquid-fed mode, the reversible efficiency is greater than 89.6% of Carnot efficiency for heat input and rejection temperatures (900--1300 K and 400--800 K, respectively) typical of practical devices. Vapor-fed cells can approach the efficiency of liquid-fed ce… more
Date: July 1, 1992
Creator: Vining, C. B.; Williams, R. M.; Underwood, M. L.; Ryan, M. A. & Suitor, J. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Activated transport in AMTEC electrodes

Description: Transport of alkali metal atoms through porous cathodes of alkali metal thermal-to-electric converter (AMTEC) cells is responsible for significant, reducible losses in the electrical performance of these cells. Experimental evidence for activated transport of metal atoms at grain surfaces and boundaries within some AMTEC electrodes has been derived from temperature dependent studies as well as from analysis of the detailed frequency dependence of ac impedance results for other electrodes, inclu… more
Date: July 1, 1992
Creator: Williams, R. M.; Jeffries-Nakamura, B.; Ryan, M. A.; Underwood, M. L.; O`Connor, D. & Kikkert, S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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