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Heating and cooling systemA heating and cooling apparatus capable of cyclic heating and cooling of a test specimen undergoing fatigue testing is discussed. Cryogenic fluid is passed through a block clamped to the speciment to cool the block and the specimen. Heating cartridges penetrate the block to heat the block and the specimen to very hot temperaures. Control apparatus is provided to alternatively activate the cooling and heating modes to effect cyclic heating and cooling between very hot and very cold temperatures. The block is constructed of minimal mass to facilitate the rapid temperature changes.
Document ID
19830025950
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Imig, L. A. (NASA Langley Research Center Hampton, VA, United States)
Gardner, M. R. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 4, 2013
Publication Date
August 31, 1982
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
83N34221
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-PATENT-4,346,754|NASA-CASE-LAR-12393-1
Patent Application
US-PATENT-APPL-SN-145208

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