Abstract
Performance of 3kW two-piston Stirling engine, NS03T was examined in this study. The NS03T engine has a unique V-shape cylinder arrangement with an offset crankshaft and a double tube type heat exchanger which has a high indicated efficiency. The engine was reassembled to improve the engine performance. To decrease mechanical losses, a 12L buffer tank and endless one-way-type piston rings were provided. Their effects to the engine performances were evaluated based on experimental data in detail which were taken by a newly developed measuring system.
