국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	Free-Piston Stirling Power Conversion Unit for Fission Surface Power, Phase I Final Report
저자	Wood, J. Gary;; Buffalino, Andrew;; Holliday, Ezekiel;; Penswick, Barry;; Gedeon, David
Keyword	CIRCUITS;; CONTROLLERS;; COOLING;; ENERGY CONVERSION;; FISSION;; PISTON ENGINES;; SPACE MISSIONS;; STIRLING CYCLE;; STIRLING ENGINES
URL	http://hdl.handle.net/2060/20100031133
보고서번호	NASA/CR-2010-216750
발행년도	2010
출처	NTRS (NASA Technical Report Server)
ABSTRACT	This report summarizes the design of a 12 kW dual opposed free-piston Stirling convertor and controller for potential future use in space missions. The convertor is heated via a pumped NaK loop and cooling is provided by a pumped water circuit. Convertor efficiency is projected at 27 percent (AC electrical out/heat in). The controller converts the AC electrical output to 120 Vdc and is projected at 91 percent efficiency. A mechanically simple arrangement, based on proven technology, was selected in which the piston is resonated almost entirely by the working space pressure swing, while the displacer is resonated by planar mechanical springs in the bounce space.