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研究生： 楊珅鴻
Yang, Shen-Hong
論文名稱： 氣態燃油微型渦輪氣體產生器之燃燒室設計與性能研究
Design and performance Study of Combustion Chamber of Gas Fueled Micro Turbine Gas Generator
指導教授： 賴維祥
Lai, Wei-Hsiang
學位類別： 碩士
Master
系所名稱： 工學院 - 航空太空工程學系
Department of Aeronautics & Astronautics
論文出版年： 2020
畢業學年度： 108
語文別： 英文
論文頁數： 69
中文關鍵詞： 微型渦輪 、氣態產生器 、燃燒室設計 、氣態燃料 、溫型因子
外文關鍵詞： Micro gas turbine, Gas generator, Combustor, Gas fuel, Pattern factor
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    • 本研究之目的為設計氣態燃料燃燒室並結合僑晟公司的TD-08H渦輪增壓器，建立一套以丙烷為主要燃料之微型渦輪氣體產生器，以提供後續作為渦輪發電研究之用途。
    本研究之第一部分為設計燃燒室，藉由經驗公式設計燃燒室之幾何尺寸、決定流量分配、設計孔洞分布與設計渦漩器以建立設計流程，第二部分為利用CATIA建立燃燒室之流體模型，並使用CFD模擬軟體ANSYS FLUENT模擬冷流的燃燒室內部流場來驗證燃燒室的流場設計，第三部分為進行燃燒實驗測試氣體產生器與燃燒室之性能，以驗證燃燒室之設計，本實驗設計一組18支熱電偶所組成的熱電偶耙(Thermocouple rake)，以量測燃燒室的出口溫度分布。
    本研究所設計之燃燒室成功使氣體產生器達到怠速50000轉和設計點95000轉，在最高轉速時所量到的燃燒室出口溫型因子為0.11。

    The purpose of this research is to design a gas-fueled combustor combined with Chiau Cheng Co’s TD-08H turbocharger to build a set of micro-turbine gas generator with propane as the main fuel to provide future uses for turbine power generation research.
    The first part of this study is to design the combustor. The empirical equation is used to design the geometry of the combustor, determine the flow distribution, design the hole distribution, and design the swirler to establish the design process. The second part is to use CATIA to establish the fluid model of the combustor. And use the CFD simulation software ANSYS FLUENT to simulate the flow field inside the combustion chamber of the cold flow to verify the flow field design of the combustor. The third part is to conduct combustion experiments to test the performance of the gas generator and the combustor to verify the design of the combustion chamber. In this experiment, the thermocouple rakes composed of 18 thermocouples were designed to measure the temperature distribution at the outlet of the combustor.
    The combustor designed in this research successfully made the gas generator reach the idle speed of 50000 rpm and the design point speed of 95000 rpm. The measured pattern factor of the combustion chamber outlet at the design point speed is 0.11.

    中文摘要 I Abstract III 誌謝 IV Table of Contents V List of Tables VIII List of Figures IX List of symbols XII Chapter 1. Introduction 1 1-1 Background 1 1-2 Literature review 6 1-2-1 Combustor of micro gas turbine 6 1-2-2 Combustor CFD modeling 8 1-3 Objective of research 9 1-4 Research process 10 Chapter 2. Fundamental and Combustor Design 11 2-1 Gas generator system design concept 11 2-2 Principle of gas generator 13 2-3 Combustor design 21 2-3-1 Design point of gas generator 22 2-3-2 Combustor configuration 23 2-3-3 Combustor air distribution design 23 2-3-4 Combustor dimension 25 2-3-5 Admission holes 27 2-3-6 Swirler and fuel injector design 29 Chapter 3. Computational Fluid Dynamics Simulation 34 3-1 CFD simulation process 34 3-2 Combustor domain 35 3-3 Mesh generation 35 3-4 Fluent boundary setup 37 3-5 Results of simulation 38 Chapter 4. Experiment Setup and Experimental Steps 40 4-1 Experimental equipment 40 4-1-1 Turbocharger 40 4-1-2 Lubricating oil supply system 41 4-1-3 Fuel supply system 42 4-1-4 Ignition system 44 4-2 Measuring instrument 45 4-2-1 Data acquisition device 45 4-2-2 Pressure measurement 47 4-2-3 Temperature measurement 49 4-2-4 Rotating speed measurement 52 4-2-5 Mass flow measurement 53 4-3 Gas generator test rig 53 4-4 Experimental steps 54 4-4-1 Pre-test inspection procedure 54 4-4-2 Startup steps during testing 55 4-4-3 Shutdown steps 56 Chapter 5. Results and Discussion 57 5-1 Gas generator performance 57 5-2 Combustor performance 61 Chapter 6. Conclusions 66 6-1 Conclusion 66 6-2 Future work 66 References 67

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