대한기계학회논문집B (Transactions of the Korean Society of Mechanical Engineers B)

  • 제39권2호
  • /
  • Pages.153-159
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  • 2015
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  • 1226-4881(pISSN)
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  • 2288-5324(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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초소형 가스터빈엔진 열전달 현상의 수치적 및 실험적 연구

Numerical and Experimental Analysis of Micro Gas Turbine Heat Transfer Effect

  • 서준혁 (포항공과대학교 기계공학과) ;
  • 권길성 (서강대학교 기계공학과) ;
  • 최주찬 (경북대학교 전자컴퓨터공학과) ;
  • 백제현 (포항공과대학교 기계공학과)
  • Seo, Junhyuk (Dept. of Mechanical Engineering, Pohang Univ of Science and Technology) ;
  • Kwon, Kilsung (Dept. of Mechanical Engineering, Sogang Univ.) ;
  • Choi, Ju Chan (School of Elec. Eng. and Comp. Sci., Kyungpook Nat'l Univ.) ;
  • Baek, Jehyun (Dept. of Mechanical Engineering, Pohang Univ of Science and Technology)
  • 투고 : 2014.06.23
  • 심사 : 2014.12.09
  • 발행 : 2015.02.01
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초록

본 연구에서는 MEMS기술을 적용한 2W급 초소형 가스터빈엔진의 개발과 실제 연소 환경에서의 발전 가능성을 해석적, 실험적으로 입증하였다. 초소형 가스터빈엔진은 터보차저, 연소기, 발전기로 이루어져 있다. 터보차저는 각각 직경 10mm와 9mm의 MEMS 공정 압축기와 터빈으로 구성되어 있으며 발전코일 또한 MEMS공정으로 설계되었다. 제작된 압축기와 터빈은 정밀 기계 가공된 축과 공기 베어링으로 지지되고 회전하며, 회전축 끝단에 영구자석을 설치하여 발전을 하게 된다. 공기 베어링과 압축기를 통한 냉각 효과를 해석하여 연소기에서 발생한 열을 충분히 차단할 수 있는 것으로 분석되었고, 이를 실험을 통해 검증하였다.

In this study, a 2-W micro-gas turbine engine was designed using micro-electro-mechanical systems (MEMS) technology, and analytical and experimental investigations of its potential under actual combustion conditions were performed. An ultra-micro-gas turbine contains a turbo-charger, combustor, and generator. A compressor, turbine blade, and generator coil were manufactured using MEMS technology. The shaft was supported by a precision computer numerical control machined air bearing, and a permanent magnet was attached to the end of the shaft for generation. An analysis found that the cooling effect of the air bearing and compressor was sufficient to cover the combustor heat, which was verified in an actual experiment.

키워드

참고문헌

  1. Dunn-Rankin, D., Leal, E. M. and Walter, D. C., 2005, "Personal Power Systems," Progress in Energy and Combustion Science, Vol. 31, No. 5-6, pp. 422-465 https://doi.org/10.1016/j.pecs.2005.04.001
  2. Epstein, A. H., 2003, "Milimeter-Scale, Micro-Electro-Mechanical Systems Gas Turbine Engines," Journal of Engineering for Gas Turbines and Power, Vol. 126, No. 2, pp. 205-206
  3. Mehra, A., Zhang, X., Ayon, A. A., Waitz, I. A., Schmidt, M. A. and Spadaccini, C. M., 2000, "A Six Wager Combustion System for a Silicon Micro Gas Turbine Engine," Journal of Microelectromechanical Systems, Vol. 9, No. 4, pp. 517-527 https://doi.org/10.1109/84.896774
  4. Shan,X.C., Wang, Z. F., Jin, Y. F., Wu, M., Hua, J., Wong, C. K. and Maead, R., 2005, "Studies on a Micro Combustor for Gas Turbine Engines," Journal of Micromechanics and Microengineering, Vol. 15, No. 9, pp. S215-S221 https://doi.org/10.1088/0960-1317/15/9/S07
  5. Iiduka, A., Ishigaki, K., Takikawa, Y., Ohse, T., Saito, K. and Uchikoba, F., 2011, "Development of Electromagnetic Induction Type Micro Air Turbine Generator Using MEMS and Multilayer Ceramic Technology," IOP Conference Series: Materials Science and Engineering, Vol. 18, 0902035
  6. Kwon, K., Hwang, Y. H., Kang, H. and Kim, D., 2013, "Numerical Study of Hydrogen/Air Combustion in Combustion Chamber of Ultra Micro Gas Turbine by Change of Flow Rate and Equivalence Ratio," Trans. Korean Soc. Mech. Eng. B, Vol. 37, No. 2, pp. 103-109 https://doi.org/10.3795/KSME-B.2013.37.2.103