HIGH TEMPERATURE THERMOELECTRIC RESEARCH
Nominal 50-watt (e) and 15-watt (e) laboratory model generators were designed, fabricated and subjected to sustained and thermal cycling tests at a hot-junction temperature of about 1200C, and cold junctions of about 570C in a vacuum of 10-5 - 10-6 torr. Both generators, constructed of solid-state,...
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| creator | Henderson, C M Ault, R G Beaver, E R Harris, D H Hedley, W H Janowiecki, R J |
| description | Nominal 50-watt (e) and 15-watt (e) laboratory model generators were designed, fabricated and subjected to sustained and thermal cycling tests at a hot-junction temperature of about 1200C, and cold junctions of about 570C in a vacuum of 10-5 - 10-6 torr. Both generators, constructed of solid-state, bonded, segmented, p- and n-type thermoelements showed good resistance to degradation under these conditions. Improvements in the properties of thermoelectric materials and interface bonding techniques for thermoelements were achieved to yield p-n couples with 17% higher performance, relative to 1962-63 couples. Nuclear reactor, radioisotope, and solar-heated, high- temperature, thermoelectric, spacepowered system concepts were proposed and preliminarily investigated. These studies showed that high-temperature, (1200C) thermoelectric space-type power units, ranging in size from a few watts to several hundred KW output, can be designed for performances from 335 lbs./KW(e) for a solar-concentrating type system to 15 lbs./KW(e) for 350 KW(e) or larger space power systems utilizing fast-reactor heat sources.
See also AD422854, AD427285, AD437280. |
| format | Report |
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See also AD422854, AD427285, AD437280.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | AEROSPACE CRAFT BONDING COATINGS ELECTRIC POWER PRODUCTION Electric Power Production and Distribution ENERGY CONVERSION GENERATORS HIGH TEMPERATURE MANUFACTURING MATERIALS NUCLEAR REACTORS PERFORMANCE(ENGINEERING) POWER POWER SUPPLIES RADIOACTIVE ISOTOPES SOLAR RADIATION TEMPERATURE TEST METHODS THERMOELECTRICITY |
| title | HIGH TEMPERATURE THERMOELECTRIC RESEARCH |
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