Alkali metal thermal-to-electric converter development

Clay S. Mayberry, John Merrill, Dan Radzykewycz and Kitt Reinhardt

Renewable Energy, 2001, vol. 23, issue 3, 451-461

Abstract: Initial impedance measurements of multi-BASE tube AMTEC cells have been accomplished. These measurements were based on theoretical analyses performed by the Jet Propulsion Laboratory. These factors are derived from a plot of the apparent charge transfer resistance, Ract, as a function of the electrical potential across the beta alumina solid electrolyte. These include the morphology factor, G, the exchange current J00, and α, the transfer coefficient. The factor G was given a value of 50 as a result of the inability of present equipment to achieve 1.6 V across a single electrolyte element. Average values for the temperature independent charge exchange factor, B, are also reported. These results were taken from cells with as few as 3300 h to as many as 12,000 h of operation. The results show that if the value for G is somewhat close to actual values, then J00 and α are much lower than those reported in previous literature, resulting in an increase in the charge transfer resistance.

Date: 2001
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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:23:y:2001:i:3:p:451-461

DOI: 10.1016/S0960-1481(00)00150-6

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