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The thermoelectric generator test program at JPL.Discussion of the test results and analysis performed on data obtained from eight thermoelectric generators exhibiting a total combined operating time of about 21 years. Three (3) SNAP-19 type generators are discussed. Generator SN-20, the engineering model of the units presently operating on the Nimbus S/C, has been in operation for over 4 years and has shown drastic degradation after losing the internal cover gas. Generator SN-21, with more than four years of operating time, is operated in an air environment. The performance of this generator appears predictable and stable. For the last 2 years of operation generator degradation has been negligible. Generator SN-31, which utilizes the TAGS material for the P thermoelectric leg, is similar in design to the units to be used on the Pioneer S/C and has operated for over two years in an all-argon atmosphere.
Document ID
19730037958
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Stapfer, G.
Rouklove, P.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena Calif., United States)
Date Acquired
August 7, 2013
Publication Date
January 1, 1972
Subject Category
Propulsion Systems
Meeting Information
Meeting: Intersociety Energy Conversion Engineering Conference
Location: San Diego, CA
Start Date: September 25, 1972
End Date: September 29, 1972
Accession Number
73A22760
Funding Number(s)
CONTRACT_GRANT: NAS7-100
Distribution Limits
Public
Copyright
Other

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