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Thermal Analysis of Propulsion Components for the Europa Clipper MissionThis presentation describes the thermal analysis and model development that occurred for selected components on the propulsion module subsystem of the Europa Clipper mission, which will fly to Jupiter's icy moon Europa and collect science data from orbit. An overview of a bipropellant system is given, as well as a description of a typical thermal propulsion design. A comparison is also provided, describing the unique Europa Clipper thermal design, which is atypical in many respects. The engine thermal model development is also discussed, including hot-firing tests with nozzle convection correlation, as well as thermal vacuum tests to measure and correlate the emissivity of critical nozzle surfaces. A description of engine firing, as well as valve soak back, is also provided, including temperature maps and results of engine cases. A summary is also provided, of lessons learned regarding thermal propulsion considerations.
Document ID
20180006128
Document Type
Presentation
Authors
Bradshaw, Heather N. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
October 9, 2018
Publication Date
August 20, 2018
Subject Category
Spacecraft Propulsion and Power
Report/Patent Number
GSFC-E-DAA-TN59572
Meeting Information
Thermal and Fluids Analysis Workshop (TFAWS)(Galveston, TX)
Distribution Limits
Public
Copyright
Portions of document may include copyright protected material.
Keywords
propulsion module subsystem
thermal analysis
Europa Clipper mission

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