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

The Korean Society of Mechanical Engineers (대한기계학회)
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A Study on the Combustion Characteristics of a Generator Engine Running on a Mixture of Syngas and Hydrogen

발전용 합성가스 엔진의 수소 혼합 비율에 따른 연소 특성 연구

  • Park, Seung-Hyun (Dept. of Environmental System Engineering, University of Science and Technology) ;
  • Park, Cheol-Woong (Environment and Energy Systems Research Division, Korea Institute of Machinery and Materials) ;
  • Lee, Sun-Youp (Environment and Energy Systems Research Division, Korea Institute of Machinery and Materials) ;
  • Kim, Chang-Gi (Environment and Energy Systems Research Division, Korea Institute of Machinery and Materials)
  • 박승현 (과학기술연합대학원대학교 청정환경시스템공학과) ;
  • 박철웅 (한국기계연구원 그린동력연구실) ;
  • 이선엽 (한국기계연구원 그린동력연구실) ;
  • 김창기 (한국기계연구원 그린동력연구실)
  • Received : 2010.12.15
  • Accepted : 2011.04.08
  • Published : 2011.07.01
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Abstract

Internal combustion engines running on syngas, which can be obtained from biomass or organic wastes, are expected to be one of the suitable alternatives for power generation, because they are environment-friendly and do not contribute to the depletion of fossil fuels. However, syngas has variable compositions and a lower heating value than pure natural gas, owing to which the combustion conditions need to be adjusted in order to achieve stable combustion. In this study, a gas that has the same characteristics as syngas, such as low heating value (LHV), was produced by mixing $N_2$ with compressed natural gas (CNG). In addition, this study investigates the combustion characteristics of syngas when it is mixed with hydrogen in a ratio ranging from 10% to 30% with a constant LHV of total gas.

바이오매스나 기타 유기성 폐기물로부터 가스화공정을 거쳐 얻을 수 있는 합성가스는 환경보호와 화석연료고갈 방지 측면에서 유망한 대체연료 중 하나로 여겨지고 있다. 그러나 가스화로부터 얻어지는 합성가스는 일반적인 천연가스와 같은 가스연료에 비해 발열량이 낮고 연료조성이 불균일하여 내연기관에 적용시 안정적이고 지속적인 운전이 어렵다는 단점이 있다. 따라서 본 연구에서는 이러한 저발열량과 불균일한 가스 조성의 특징을 가진 합성가스가 연소에 미치는 영향을 파악하여 고효율의 엔진을 개발하고자 연구를 수행하였다. 저발열량의 합성가스를 모사하기 위하여 천연가스에 질소를 희석한 연료를 사용하였다. 또한 체적당 발열량을 유지하면서 동일유량조건으로 합성가스에 수소 혼합비율을 10 ~ 30%로 변화시키면서 연소 특성 변화를 살펴보았다.

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References

  1. Manitas, K., 2002, "Progress in Biomass Gasfication: An Overview," Progress In Thermochemical Biomass Conversion, Vol. 1, pp. 1-31.
  2. Paisley, M. A. and Anson, D., 1999, "Biomass Gasification for Gas Turbine based Power Generation," J. of Gas Turbine&Power, Vol. 120, pp. 284-288.
  3. Heywood, J. B., 1988, "Internal Combustion Engine Fundamentals, McGraw-Hill
  4. Park, C. W., Lee, S. Y., Kim, C. G., Won, S. Y. and Lee, J. H., 2010, "A Study on Applicability to Dual-Fuel Engine of Low Caloric Gas," Trans. of KIGAS, Vol. 14, No. 1, pp. 15-20.
  5. He, M., Xiao, B., Hu, Z., Liu, S., Guo, X. and Luo, S., 2009, "Syngas Production from Catalytic Gasification of Waste Polyethylene: Influence of Temperature on Gas Yield and Composition," Int. Journal of Hydrogen Energy, Vol. 34, Issue 3, pp. 1342-1348. https://doi.org/10.1016/j.ijhydene.2008.12.023
  6. Roy, M. M., Tomita, E., Kawahara, N., Harada, Y. and Sakane, A., 2009, "Performance and Emission Comparison of a Supercharged Dual-Fuel Engine Fueled by Producer Gases with Varying Hydrogen Content," Int. Journal of Hydrogen Energy, Vol. 34, Issue 18, pp. 7811-7822. https://doi.org/10.1016/j.ijhydene.2009.07.056
  7. Huang, J. and Crookes. R. J., 1998, "Assessment of Simulated Biogas as a Fuel for the Spark Ignition Engine," Fuel, Vol. 77, pp. 1793-1801. https://doi.org/10.1016/S0016-2361(98)00114-8
  8. Ji, C., Wang, S. and Zhang, B., 2010, "Effect of Spark Timing on the Performance of a Hybrid Hydrogen Gasoline Engine - at Lean Conditions," Int. Journal of Hydrogen Energy, Vol. 35, Issue 5, pp. 2203-2212, https://doi.org/10.1016/j.ijhydene.2010.01.003
  9. Narayanan G. and Bade Shrestha, S. O., 2008, "Hydrogen as a Combustion Enhancer to Landfill Gas Utilization in Spark Ignition Engine," SAE Technical Paper, No. 2008-01-1040.