本研究構想源自於能有效利用具高壓氣源之工具或載具，利用微型空心軸渦輪轉子，在高壓氣流通過轉子時，擷取氣流的能量，可藉由渦輪轉子結合永久磁鐵轉動來驅動微型發電機組，而不需作軸功輸出，可應用於各種洩壓裝置或高壓氣體鋼瓶產生電能。
本研究主要設計輸出機械功率大於150瓦之微型氣動發電機之空心軸渦輪轉子，以計算流體力學(CFD)模擬來定量分析及預測微型氣動空心軸渦輪可輸出之機械功率與效率，並進行流場分析，瞭解影響渦輪轉子性能之因素，提出改善方向；完成微型氣動渦輪之機構設計，可進行實驗量測扭力，將實驗量測數據與模擬結果互相比對驗證，完成微型氣動渦輪發電系統之轉子設計與測試研究。

Pressure expansion is required in many process applications, and the excess process energy ends up being dissipated as heat. An Example is the throttling process of compressed air systems. Using a micro air turbine generator that can produce electricity under pressure expansion, the wasted energy can be recovered.
This paper proposes a millimeter-scale air turbine which can be used for electric generation. The air turbine is based on a single-stage axial reaction turbine with a rated rotational speed of 100,000 RPM and a rated mechanical power output of 150 W.
A CFD software (STAR-CCM+) was used to predict the performance of the micro air turbine at different operating conditions. Losses due to skin friction and geometry factor are discussed. The completed rotor assembly of the micro air turbine was tested to measure the performance.

參考文獻
[01]. Jan Peirs, Dominiek Reynaerts, Filip Verplaetsen, 2004,“A microturbine for electric power generation,”Sensors and Actuators, Vol. 113, pp. 86-93.
[02]. D Krahenbuhl, C Zwyssig, H Weser and J W Kolar, 2009, “Theoretical and experimental results of a mesoscale electric power generation system from pressurized gas flow,”Journal of Micromechanics and Microengineering 19 094009.
[03]. D Krahenbuhl, C Zwyssig, H Weser and J W Kolar, 2008,“Design Consideration and Experimental Results of a 60 W Compressed-Air-to-Electric-Power System,”Mechtronic and Embedded Systems and Applications.
[04]. S. Sato, S. Jovanovic, J. Lang, Z. Spakovszky, 2011,“Demonstration of a Palm-Sized 30 W Air-to-Power Turbine Generator,”Journal of Engineering for Gas Turbine and Power, Vol. 133 / 102301-1~102301-10.
[05]. 袁興磊,“氣動渦輪動力系統之轉子設計與CFD模擬分析”, 國立清華大學碩士論文, 2012.
[06]. 莊舜堯,“厘米級微型渦輪性能測試研究”, 國立清華大學碩士論文, 2007.
[07]. 黃裕盟, “微型水力渦輪發電機之葉片設計及分析”, 國立清華大學碩士論文,2009.
[08]. 李育昇, “消防灑水系統應用微型水力渦輪發電系統之轉子設計與測試研究”, 國立清華大學碩士論文, 2012.
 
[09]. 雷聲遠, “近代計算流體力學”, 1996, 全華科技圖書股份有限公司.
[10]. H Cohen, GFC Rogers, HIH Saravanamuttoo, Gas Turbine Theory 4th Edition.
[11]. S.L. Dixon, B. Eng. PH. D., Fluid Mechanics, Thermodynamics of Turbomachinery 4th Edition.
[12]. Tatsuo ONISHI, Stephane BURGUBURU, Olivier DESSORNES, Yves RIBAUD,“Numerical Design and Study of a MEMS-Based Micro Turbine,”Proceeding of GT2005, ASME Turbo Expo 2005: Power for Land, Sea and Air.