Accession Number:

AD0274481

Title:

SOLAR REGENERATIVE CHEMICAL SYSTEM

Descriptive Note:

Corporate Author:

LOCKHEED MISSILES AND SPACE CO INC SUNNYVALE CA

Personal Author(s):

Report Date:

1961-12-31

Pagination or Media Count:

1.0

Abstract:

A regenerative-type fuel cell, with regeneration based on the thermal dissociation of CdI2 or SnI2, was shown to be unfeasible. The theoretical evaluation of the thermodynamics and high-temper-ATURE KINETICS OF BOTH SYSTEMS SUPPORTS THE NEGATIVE EXPERIMENTAL FINDINGS. The metal-molten salt thermocell was based on a large thermal gradient across the electrolyte which generates a potential between hot and cold metal to electrolyte junctions. The values of dEdT in micro vdeg, the change of potential with temperature differential, were experimentally determined and ranged from -30 to -100. A system is sought where dEdT is on the order of several hundred micro vdeg. The double thermogalvanic cell utilizes an electrolytic cell operating at elevated temperature, to regenerate the reaction products of a fuel cell. Electrolysis of CdI2 was performed with approximately 40- current efficiency the low current efficiency was attributed to the solubility of molten Cd in the fused salt. Photochemically regenerative systems based on the reversible photochemical bleaching of water-soluble dyes were studied. The proflavine-ascorbic acid system was found to be the most successful. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE