本研究是探討水冷套對Gamma型史特靈引擎性能的影響。在一大氣壓下使用的工作流體為空氣,使用交流電源供應器加熱引擎熱端並用水冷套冷卻引擎冷端,探討在無負載情況下,不同輸入熱源200W、300W,不同冷卻水溫度15°C、20°C、25°C和不同冷卻水流量1.235 L/min、2.311 L/min、3.214 L/min。測試不同輸入熱源,引擎在不同冷卻水溫度和冷卻水流量下的引擎轉速、水冷套進出口溫差和PV圖。 The purpose of this research is to study the effects of cooling water on a gamma-configuration Stirling engine performance. The single power cylinder engine was tested by an electric heater as a heat source with heat input power of 200W and 300W. Experiments was conducted when cooling water was kept at 15°C, 20°C, 25°C, with a flow rate of 1.235 L/min, 2.311 L/min and 3.214 L/min respectively. Variations of engine speed, cooler inlet and outlet temperature difference, and pressure-volume diagram with cooling water temperature and flow rate at various heat inputs are presented.