NDLI: Summary of test results from a 1 kwe-class free-piston stirling power convertor integrated with a pumped nak loop

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Summary of test results from a 1 kwe-class free-piston stirling power convertor integrated with a pumped nak loop

Content Provider	NASA Technical Reports Server (NTRS)
Author	Geng, Steven M. Godfroy, Thomas J. Pearson, J. Boise Briggs, Maxwell H.
Copyright Year	2010
Description	As a step towards development of Stirling power conversion for potential use in Fission Surface Power (FSP) systems, a pair of commercially available 1 kW class free-piston Stirling convertors was modified to operate with a NaK liquid metal pumped loop for thermal energy input. This was the first-ever attempt at powering a free-piston Stirling engine with a pumped liquid metal heat source and is a major FSP project milestone towards demonstrating technical feasibility. The tests included performance mapping the convertors over various hot and cold-end temperatures, piston amplitudes and NaK flow rates; and transient test conditions to simulate various start-up and fault scenarios. Performance maps of the convertors generated using the pumped NaK loop for thermal input show increases in power output over those measured during baseline testing using electric heating. Transient testing showed that the Stirling convertors can be successfully started in a variety of different scenarios and that the convertors can recover from a variety of fault scenarios.
File Size	1019785
Page Count	26
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20110003104
Archival Resource Key	ark:/13960/t7cs0t10f
Language	English
Publisher Date	2010-12-01
Access Restriction	Open
Subject Keyword	Spacecraft Propulsion And Power Liquid Sodium Stirling Cycle Technology Assessment Spacecraft Power Supplies Liquid Metals Free-piston Engines Stirling Engines Fission Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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