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Thermal design support for the Explorer gamma ray experiment telescopeThe results of a thermal design definition study for the GSFC Explorer Gamma Ray Experiment Telescope (EGRET) were documented. A thermal computer model of EGRET with 241 nodes was developed and used to analyze the thermal performance of the experiment for a range of orbits, payload orientations and internal power dissipations. The recommended thermal design utilizes a small radiator with an area of 1.78 square foot on the anti-sun side of the mission adaptor and circumferential heat pipes on the interior of the same adaptor to transfer heat from the electronics compartments to the single radiator. Fifty watts of thermostatically controlled heater power are used to control the temperature level to 10 C + or - 20 C inside the insulated dome structure.
Document ID
19760005037
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Almgren, D. W. (Little (Arthur D.), Inc. Cambridge, MA, United States)
Lee, W. D. (Little (Arthur D.), Inc. Cambridge, MA, United States)
Mathias, S. (Little (Arthur D.), Inc. Cambridge, MA, United States)
Date Acquired
September 3, 2013
Publication Date
June 1, 1975
Subject Category
Spacecraft Instrumentation
Report/Patent Number
C-75567
NASA-CR-144681
Accession Number
76N12125
Funding Number(s)
CONTRACT_GRANT: NAS5-23206
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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