Thermal contact conductance and thermal shield design for superconducting magnet systems
- Babcock and Wilcox, Lynchburg, VA (United States)
The aluminum radiation shields in the SSC Quadrupole magnets are conductively cooled from the cryogen flow in the 80 K and 20 K flow circuits. As the shield temperature is very sensitive to the effective heat transfer rate between the shield-piping interface, the method of shield mounting and heat sinking is critical. Cost and reliability concerns also drive the design. Here, the authors discuss critical issues that can have a limiting effect on the shield thermal performance. The spring-type action of the shield clamps it in place and heat transfer across the interface depends on thermal contact conductance. Thermally induced stresses can be relieved by allowing the shield and piping to slide relative to each other. Test results are presented on stainless steel-aluminum thermal contact conductance and its effect on the shield performance is discussed.
- OSTI ID:
- 45431
- Report Number(s):
- CONF-930703-; CNN: Contract SSC-91-B-01703; TRN: 94:007382-0023
- Resource Relation:
- Conference: International cryogenic materials conference (ICMC), Albuquerque, NM (United States), 12-16 Jul 1993; Other Information: PBD: 1994; Related Information: Is Part Of Advances in cryogenic engineering, Volume 39, Part A; Kittel, P. [ed.]; PB: 1038 p.
- Country of Publication:
- United States
- Language:
- English
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