Abstract

Abstract >> This paper describes the continuing effort to analysis and design on dynamic and electrical behaviorof gamma-type free piston Stirling engine/generator with dual–opposed linear generator for domestic micro-CHP (Combined Heat and Power) system. The double acting Stirling engine/generator has one displacer and two power piston which are supported by flexure springs. Two power pistons oscillate with symmetric sinusoidal displacementand are connected with moving magnet type linear generators for power generation. To operate Stirling engine/ generator, combustion heat of natural gas is supplied to hot-end and heat is rejected from cold-end by coolingwater. The temperature difference across the displacer induces the oscillating motion, and it can be explained withmass-spring vibration system. The purpose of this paper is to describe the design process of linear generator for the double acting free-piston Stirling engine. Key words : Double acting free piston Stirling engine/alternator(양방향 자유 피스톤 스털링엔진 /발전기), Lineargenerator(선형발전기), Piston(피스톤), Displacer(변위기), Operating frequency(작동주파수)

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