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Proceedings Paper

Thermal systems analysis for the Space Infrared Telescope Facility dewar
Author(s): Pradeep Bhandari; Stanley Walter Petrick; Helene R. Schember
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Paper Abstract

Thermal systems analysis models were used to design SFHe cooled dewar for the Space Infrared Telescope Facility (SIRTF), a 1 m class cryogenically cooled observatory for IR astronomy. The models are capable of computing both the heat leaks into the dewar and the operating temperature of a SFHe tank. The models are aimed at predicting the ability of the SIRTF cryogenic system to satisfy a five-year mission lifetime requirement and maintain the SFHe tank operating temperature of 1.25 K to provide sufficient cooling for science instruments and the optical system. The thermal models are very detailed and very fast with a typical steady state run of about 20 sec on a VAX minicomputer.

Paper Details

Date Published: 1 December 1991
PDF: 12 pages
Proc. SPIE 1540, Infrared Technology XVII, (1 December 1991); doi: 10.1117/12.48718
Show Author Affiliations
Pradeep Bhandari, Jet Propulsion Lab. (United States)
Stanley Walter Petrick, Jet Propulsion Lab. (United States)
Helene R. Schember, Jet Propulsion Lab. (United States)


Published in SPIE Proceedings Vol. 1540:
Infrared Technology XVII
Bjorn F. Andresen; Marija Scholl; Irving J. Spiro, Editor(s)

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