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General Purpose Heat Source SimulatorThe General Purpose Heat Source (GPHS) simulator project is designed to replicate through the use of electrical heaters, the form, fit, and function of actual GPHS modules which generate heat through the radioactive decay of Pu238. The use of electrically heated modules rather than modules containing Pu238 facilitates the testing of spacecraft subsystems and systems without sacrificing the quantity and quality of the test data gathered. Previous GPHS activities are centered around developing robust heater designs with sizes and weights that closely matched those of actual Pu238 fueled GPHS blocks. These efforts were successful, although their maximum temperature capabilities were limited to around 850 C. New designs are being pursued which also replicate the sizes and weights of actual Pu238 fueled GPHS blocks but will allow operation up to 1100 C.
Document ID
Document Type
Conference Paper
Emrich, Bill
Date Acquired
August 24, 2013
Publication Date
July 20, 2008
Subject Category
Spacecraft Propulsion And Power
Meeting Information
44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit(Hartford, CT)
Distribution Limits
Work of the US Gov. Public Use Permitted.

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