本研究利用二階非理想絕熱分析法設計及製作300-W級史特靈引擎，並掌握高效能史特靈引擎效能提升的關鍵技術。本研究針對β型史特靈引擎做設計，因其機構緊湊，可有效減小引擎體積，相較於其它型引擎有較大的輸出功率。引擎的性能量測以轉速、扭力和輸出軸功為主，利用不同填充工作流體結合各種再生器，在不同引擎轉速之下觀察其性能差異。研究結果指出，再生器的選擇是影響史特靈引擎效率的關鍵。在相同填充壓力下，引擎的功率表現以利用氦氣作為工作流體比利用空氣的來得更好。在8 bar填充壓力、加熱溫度為850 ℃、120目孔質材料的再生器下，引擎的作功可達390 W，熱效率達32 %。此外，本研究的數值模擬結果符合實驗數據趨勢，可彌補實驗量測的不足，未來可利用此理論模型輔助設計更高功率的史特靈引擎。

In this study, a second order non-ideal adiabatic model is used to investigate the performance of a beta type 300-W Stirling engine. In this report, the outline of the engine design and the results of performance test are presented. Experiments are conducted with two different filling working gases (air and helium) and with various wire meshes that forms the regenerator. The torque, rotation speed and shaft power of the engine have been measured under various conditions. Results indicate that the power generated by filling helium as working fluid is larger than air. In addition, the efficiency of Stirling engine is highly dependent on the mesh of the woven mesh regenerator. As the filling pressure is elevated to 8 bar and a No.120 woven mesh is used to form the regenerator, the shaft power of the engine reaches 390 W. In addition, results of numerical simulation by the model developed in this study closely agree with the experimental data. This implies that the present theoretical model can be helpful and applied in the future development of an engine of higher capacity.

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