NTRS - NASA Technical Reports Server

Back to Results
Regolith thermal energy storage for lunar nighttime powerA scheme for providing nighttime electric power to a lunar base is described. This scheme stores thermal energy in a pile of regolith. Any such scheme must somehow improve on the poor thermal conductivity of lunar regolith in vacuum. Two previous schemes accomplish this by casting or melting the regolith. The scheme described here wraps the regolith in a gas-tight bag and introduces a light gas to enhance thermal conductivity. This allows the system to be assembled with less energy and equipment than schemes which require melting of regolith. A point design based on the new scheme is presented. Its mass from Earth compares favorably with the mass of a regenerative fuel cell of equal capacity.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Tillotson, Brian
(Boeing Defense and Space Group Huntsville, AL, United States)
Date Acquired
September 6, 2013
Publication Date
February 1, 1992
Publication Information
Publication: Arizona Univ., Proceedings of the Lunar Materials Technology Symposium
Subject Category
Energy Production And Conversion
Accession Number
Distribution Limits
Work of the US Gov. Public Use Permitted.
No Preview Available