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Simple Spreadsheet Thermal Models for Cryogenic ApplicationsSelf consistent circuit analog thermal models that can be run in commercial spreadsheet programs on personal computers have been created to calculate the cooldown and steady state performance of cryogen cooled Dewars. The models include temperature dependent conduction and radiation effects. The outputs of the models provide temperature distribution and Dewar performance information. these models have been used to analyze the SIRTF Telescope Test Facility (STTF). The facility has been brought on line for its first user, the Infrared Telescope Technology Testbed (ITTT), for the Space Infrared Telescope Facility (SIRTF) at JPL. The model algorithm as well as a comparison between the models' predictions and actual performance of this facility will be presented.
Document ID
20060037383
Document Type
Conference Paper
External Source(s)
Authors
Nash, Alfred
Date Acquired
August 23, 2013
Publication Date
July 1, 1995
Subject Category
Engineering (General)
Distribution Limits
Public
Copyright
Other
Keywords
spreadsheet thermal model cryogenic