Type of Publication: Journal Articles
Authors: Yigal Ronen, M. Kurtzhand, L. Droizman, Eugene Shwageraus
Title: Conceptual design of americium nuclear battery for space power applications
Name of the Journal: Journal of Propulsion and Power
Year: 2007
Volume: 23
Issue: 4
Pages: 874-880
Abstract: This work presents simplified Am-242m-fueled nuclear battery concept design featuring direct fission products energy conversion and passive heat rejection. Optimization of the battery operating characteristics and dimensions was performed. The calculations of power conversion efficiency under thermal and nuclear design constraints showed that 5.6 W-e/kg power density can be achieved, which corresponds to conversion efficiency of about 4%. A system with about 190 cm outer radius translates into 17.8 MT mass per 100 kW(e). Total power scales linearly with the outer surface area of the battery through which the residual heat is rejected. Tradeoffs between the battery lifetime, mass, dimensions, power rating, and conversion efficiency are presented and discussed. The battery can be used in a wide variety of interplanetary missions with power requirements in the kW to MW range.
Author Address: Ronen, Y, Ben Gurion Univ Negev, Dept Nucl Engn, IL-84105 Beer Sheva, Israel
Last Updated: 10/8/2007 3:22:05 PM
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