An Experimental Study of Stirling Pump

Liquid-piston Stirling engine (Fluidyne) has not been in practical use because of it\u27s low thermal efficiency. However, Fluidyne has many advantages, that it has a simple structure with fewer moving parts, and it works silently even in a low temperature difference. In this study, a Stirling pump of U-tube type was constructed and it\u27s output power and thermal efficiency were experimentally determined. Effect of the input power and the length of a resonance tube on the performance of the combined system of the Fluidyne and the pump were also evaluated. Total thermal efficiency decreased considerably when a pump was combined by the Fluidyne