한국항공우주학회지 (Journal of the Korean Society for Aeronautical & Space Sciences)

  • 제41권3호
  • /
  • Pages.226-232
  • /
  • 2013
  • /
  • 1225-1348(pISSN)
  • /
  • 2287-6871(eISSN)
한국항공우주학회 (The Korean Society for Aeronautical and Space Sciences)
권호 표지
DOI QR코드

DOI QR Code

화학수소화합물을 이용한 소형 무인항공기용 연료전지 시스템 연구 - I. 경량 수소 발생 및 제어 장치

Fuel cell system for SUAV using chemical hydride - I. Lightweight hydrogen generation and control system

  • Hong, Ji-Seok (Korea Aerospace University, School of Aerospace and Mechanical Engineering) ;
  • Jung, Won-Chul (Korea Aerospace University, School of Aerospace and Mechanical Engineering) ;
  • Kim, Hyeon-Jin (Korea Aerospace University, School of Aerospace and Mechanical Engineering) ;
  • Lee, Min-Jae (Korea Aerospace University, School of Aerospace and Mechanical Engineering) ;
  • Jeong, Dae-Seong (Korea Aerospace University, School of Aerospace and Mechanical Engineering) ;
  • Jeon, Chang-Soo (Korea Aerospace University, School of Aerospace and Mechanical Engineering) ;
  • Sung, Hong-Gye (Korea Aerospace University, School of Aerospace and Mechanical Engineering) ;
  • Shin, Seock-Jae (Korea Institute of Science and Technology, Fuel Cell Center) ;
  • Nam, Suk-Woo (Korea Institute of Science and Technology, Fuel Cell Center)
  • 투고 : 2012.09.29
  • 심사 : 2013.02.26
  • 발행 : 2013.03.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

소형 무인항공기의 동력장치로 연료전지 시스템을 적용하기 위해 화학수소화합물 수소 저장방법을 이용한 소형 수소 발생 제어장치를 설계하였다. 효율이 높은 소형/경량 수소 발생 제어장치를 설계하기 위하여 $NaBH_4$ 수용액 공급 유량에 따른 Co-B 촉매의 수소 전환율을 확인하였고, 100W 스택의 최대 수소 발생량에 적합한 Co-B 촉매양을 제안하였다. 효율적인 연료 소모를 위해 Dead-end 방식의 스택을 선택하였고, 수소 발생 제어장치 내부 압력을 이용한 펌프 on/off 제어로 수소 생성량을 제어하였다. 소형 수소 발생 제어장치를 이용한 연료전지 시스템의 각 작동구간에서 안정된 운전을 확인하였다. 장시간 운전 실험을 통하여 최대 7시간 운전이 가능하며, 임의의 비행 프로화일에 요구되는 추력 프로화일은 최소 4시간 이상 조정 가능함을 확인하였다.

A compact hydrogen generation device of fuel cell system using chemical hydride storage technique was designed to fit the propulsion device requirement of a small unmanned aerial vehicle(SUAV). For high efficient, compact, and lightweight hydrogen generation control device, the Co-B catalyst hydrogen conversion rate by $NaBH_4$ aqueous solution flux is measured so that the proper amount of Co-B catalyst for maximum hydrogen generation of 100W stack was proposed. A compact hydrogen generation device is controlled by pump's on/off using its own internal pressure and consumes fuel in high efficiency through a dead-end type fuel cell. The fuel cell system has stable operation for a planed flight profile. The system operates up to maximum 7 hours and at least 4 hours for tough flight profiles.

키워드

참고문헌

  1. Keun-Bae Kim, "Technical Trends for Fuel Cell Aircraft", Current Industrial and Technological Trends in Aerospace, Vol 7, Issue 2, 2009, pp. 85-105
  2. AeroVironment's unmanned aircraft achieves record flight. Fuel Cell Bull, Vol 8, 2007
  3. Moaad Yacoubi, Christophe Lemone, Antoine Bourguignon and Patrick Hendrick, "Study of the propulsion system of a VTOL MUAV using fuel cells", 9th National Congress on Theoretical and Applied Mechanics, Brussels, 9-10-11, May 2012
  4. "PRODUCTS-AEROPAK Fuel Cell Propulsion System for Unmanned Aerial Vehicles", Horizon Energy Systems, Web. 12 Feb. 2012
  5. T.G. Kim, H.C. Shim, S. J. Kwon, "Small Fuel Cell System as a Power Source for Unmanned Aerial Vehicle", Korean Society for Precision Engineering, 2007 KSPE Spring conference, 2007, pp.733-734
  6. Ji-seok Hong, Jin-Gu Park, Hong-Gye Sung, Seock-Jae Shin, Suk-Woo Nam, "Hydrogen generation control of PEMFC propulsion system for UAV," 2010 Asia-Pacific International Symposium on Aerospace Technology, 2010.
  7. Kyunghwan Kim, Taegyu Kim, Kiseong Lee, Sejin Kwon, "Fuel cell system with sodium borohydride as hydrogen source for unmanned aerial vehicles", Journal of Power Sources, Vol 196, Issues 21, 1 November 2011. pp.9069-9075 https://doi.org/10.1016/j.jpowsour.2011.01.038
  8. Taegyu Kim, Sejin Kwon, "Design and development of a fuel cell-powered small unmanned aircraft", International Journal of Hydrogen Energy 37, 2012, pp.615-622 https://doi.org/10.1016/j.ijhydene.2011.09.051
  9. Sun Ja Kim, Jaeyoung Lee, Kyung Yong Kong, ChangRyul Jung, In-Gyu Min, Sang-Yeop Lee, Hyoung-Juhn Kim, Suk Woo Nam, Tae-Hoon Lim, "Hydrogen generation system using sodium borohydride for operation of a 400W-scale polymer electrolyte fuel cell stack", Journal of Power Sources 170, 2007, 412-418, 2007 https://doi.org/10.1016/j.jpowsour.2007.03.083
  10. S.U. Jeong, R.K. Kim, E.A. Cho. H.-J. Kim, S.-W. Nam, I.-H. Oh, S.-A. Hong, S.H. Kim, "A Study on hydrogen generation from NaBH4 solution using the high performance Co-B catalyst", Journal of Power Souces, Vol. 144, Issue 1, 1 June 2005, pp.129-134 https://doi.org/10.1016/j.jpowsour.2004.12.046
  11. Jin-ho Kim, "A study on the Hydrogen Storage/Production from Hydrolysis of Sodium Borohydride and Development of Direct Borohydride Liquid Fuel Cell", 2004, Ph.D thesis, KAIST
  12. Kreevoy MM, Jacobson RW, "The rate of decomposition of $NaBH_4$ in basic aqueous solution", Ventron Alembic 15, 1979, pp2-3

피인용 문헌

  1. Performance Evaluation of Hydrogen Generation System using NaBH4 Hydrolysis for 200 W Fuel Cell Powered UAV vol.43, pp.4, 2015, https://doi.org/10.5139/JKSAS.2015.43.4.296