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Reviewing of Operating Stability about Pulse Detonation Engine's Ignition Circuit to the Type of Power Sources

점화 신호 종류에 따른 PDE 점화회로의 작동 안정성 연구

  • Kim, Jungmin (Department of Aerospace Engineering, Pusan National University) ;
  • Han, Hyung-Seok (Department of Aerospace Engineering, Pusan National University) ;
  • Oh, Sejong (Department of Aerospace Engineering, Pusan National University) ;
  • Choi, Jeong-Yeol (Department of Aerospace Engineering, Pusan National University)
  • Received : 2018.02.27
  • Accepted : 2018.08.05
  • Published : 2018.12.01

Abstract

A pulse detonation engine (PDE) requires high operating frequency greater than 100 Hz to get meaning thrust as a propulsion devise. Thus a PDE needs an ignition circuit operating precisely at high operating frequencies. In this paper AC(alternating current) and DC(direct current) types of ignition circuits were designed and compared. Each circuit was tested at operating frequencies from 16.66 to 100.00 Hz by measuring the input signal of each circuit and the voltage change in the primary coil of the transformer. Results show that the DC power circuit can attain a maximum error rate of 5.15% at higher operating frequencies, whereas the AC power circuit displays a negligible agreement with the operating signal at frequencies greater than 33.33 Hz. Therefore it is confirmed that DC-powered ignition circuit is preferable for the PDE operating at high frequencies.

펄스 데토네이션 엔진 (PDE는) 추진기관으로서 의미 있는 추력을 얻기 위해 100 Hz 이상의 높은 작동 주파수를 요구한다. 따라서 PDE는 높은 작동 주파수에서 정확하게 작동하는 점화 회로 필요로 한다. 이번 논문에서는 교류와 직류 전원을 이용하는 두 종류의 점화 회로를 설계하여 비교하였다. 두 회로는 16.66 에서 100.00 Hz 작동 주파수에서 입력 신호와 변압기의 1 차 코일에 인가되는 전압 변화를 측정하여 시험하였다. 실험 결과 직류 전원의 회로의 경우 증가된 작동 주파수에서 최대 5.15%의 작동 주파수 오차를 보였으나 교류 전원의 회로의 경우 33.33 Hz 이상부터는 거의 맞지 않는 결과를 보였다. 이를 통해 고주파 작동의 PDE에서는 직류 전원의 점화 회로가 선호됨을 확인하였다.

Keywords

References

  1. "First Holzwarth Experiment Gas Turbine." retrieved 10, Feb., 2016 from http://www. deutsches-museum.de/en/collections/machi nes/power-engines/gas-turbines/holzwarth-gas-turbine-1908/,1908.
  2. Global, F., "Napier Nomad-An Engine of Outstanding Efficiency," Flight and Aircraft Engine, Vol. 63, No. 2304, pp. 543-551, 1954.
  3. Bussing, T., Bratkovich, T., and Hinkey, J. "Practical Implementation of Pulse Detonation Engines," 33rd Joint Propulsion Conference and Exhibit, Seattle, W.A., U.S.A., AIAA 1997-2748, Jul. 1997.
  4. Kailasanath, K. "Review of Propulsion Applications of Detonation Waves," AIAA, Vol. 38, No. 9, pp. 1698-1708, 2000. https://doi.org/10.2514/2.1156
  5. Lee, J. H., The Detonation Phenomenon, Cambridge University Press, Cambridge, U.K., 2008.
  6. Kim, J.H., Kim, T.Y., Jin, W.S. and Choi, J.Y., "Research Activities on PGC Propulsion Systems Based on PDE," KSAS, Vol. 42, No. 10, pp. 858-869, 2014.
  7. Zeldowicz, Y., "The Theory of The Propagation of Detonation in Gaseous Systems," Theor. Phys. SSSR, Vol. 10, pp. 542-568, 1940.
  8. Von N. J., "Theory of Detonation Waves." National Defense Research Committee of The Office of Scientific Research And Development-ADB967734, 1942.
  9. Doring, W. "Uber Den Detonationsvorgang in Gasen," Annalen der Physik, Vol. 435, No. 6-7, pp. 421-436, 1943. https://doi.org/10.1002/andp.19434350605
  10. Benedick, W.B., Guirao, C.M., Knystautas, R. and Lee, J.H., "Critical Charge for The Direct Initiation of Detonation in Gaseous Fuel-air Mixtures," Prog. in Astronautics and Aeronautics, Vol. 106, pp. 181-202, 1986.
  11. Babrauskak, V., Ignition Handbook, Fire Science Publishers, San Diego, C.A., U.S.A., 2003.
  12. Endo, T., Kasahara, J., Matsuo, A., Sato, S., Inaba, K., and Fujiwara, T. "Pressure History at The Thrust Wall of A Simplified Pulse Detonation Engine," AIAA journal, Vol. 42, No. 9, pp. 1921-1930, 2004. https://doi.org/10.2514/1.976
  13. Matsuoka, K., Esumi, M., Ikeguchi, K.B., Kasahara, J., Matsuo, A., and Funaki, I. "Optical And Thrust Measurement of A Pulse Detonation Combustor with A Coaxial Rotary Valve," Combustion and flame, Vol. 159, No. 3, pp. 1321-1338, 2012. https://doi.org/10.1016/j.combustflame.2011.10.001
  14. Kim, J.M., Jin, W.S., Oh, S.J., and Choi, J.Y., "Development And Test of Ignition System for Multi-Tube PDE using CRV," KSPE fall conference, Gyeon-ju, Korea, pp. 342-345, Nov. 2015.
  15. Choi, G.H., Design and Application of Operation Amplifier Circuit, 1st ed., Cheong Moon Gak, Gyeonggi, Korea, 2004.