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The alkali metal thermoelectric converter /AMTEC/ - A new direct energy conversion technology for aerospace powerA thermally regenerative electrochemical device for the direct conversion of heat to electrical energy, the alkali metal thermoelectric converter (AMTEC), is characterized by potential efficiencies on the order of 15-40% and possesses no moving parts, making it a candidate for space power system applications. Device conversion efficiency is projected on the basis of experimental voltage vs current curves exhibiting power densities of 0.7 W/sq cm and measured electrode efficiencies of up to 40%. Preliminary radiative heat transfer measurements presented may be used in an investigation of methods for the reduction of AMTEC parasitic radiation losses. AMTEC assumes heat input and rejection temperatures of 900-1300 K and 400-800 K, respectively. The working fluid is liquid sodium, and the porous electrode employed is of molybdenum.
Document ID
19820048341
Document Type
Conference Paper
Authors
Bankston, C. P. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Cole, T. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Jones, R. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Ewell, R. (California Institute of Technology, Jet Propulsion Laboratory, Pasadena CA, United States)
Date Acquired
August 10, 2013
Publication Date
June 1, 1982
Subject Category
SPACECRAFT PROPULSION AND POWER
Report/Patent Number
AIAA PAPER 82-0862
Meeting Information
Joint Thermophysics, Fluids, Plasma and Heat Transfer Conference(St. Louis, MO)
Funding Number(s)
CONTRACT_GRANT: NAS7-100
Distribution Limits
Public
Copyright
Other