Advanced Stirling Radioisotope Generator thermal power model in Thermal Desktop SINDA/FLUINT analyzer | Zendy

Xiao Yen Wang | Zendy; William A. Fabanich | Zendy; Paul Schmitz | Zendy

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Advanced Stirling Radioisotope Generator thermal power model in Thermal Desktop SINDA/FLUINT analyzer

Author(s) -

Xiao Yen Wang,

William A. Fabanich,

Paul Schmitz

Publication year - 2012

Publication title -

7th international energy conversion engineering conference

Language(s) - English

Resource type - Conference proceedings

DOI - 10.2514/6.2012-4060

Subject(s) - stirling engine , thermal , spectrum analyzer , stirling cycle , nuclear engineering , generator (circuit theory) , materials science , mechanical engineering , power (physics) , computer science , aerospace engineering , engineering , electrical engineering , physics , thermodynamics

This paper presents a three-dimensional Advanced Stirling Radioisotope Generator (ASRG) thermal power model that was built using the Thermal Desktop SINDA/FLUINT thermal analyzer. The model was correlated with ASRG engineering unit (EU) test data and ASRG flight unit predictions from Lockheed Martin’s Ideas TMG thermal model. ASRG performance under (1) ASC hot-end temperatures, (2) ambient temperatures, and (3) years of mission for the general purpose heat source fuel decay was predicted using this model for the flight unit. The results were compared with those reported by Lockheed Martin and showed good agreement. In addition, the model was used to study the performance of the ASRG flight unit for operations on the ground and on the surface of Titan, and the concept of using gold film to reduce thermal loss through insulation was investigated.

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