Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
권호 표지
DOI QR코드

DOI QR Code

A Development of Converting Technology for the Marine Gasoline/CNG Bi-fuel Engine

선박용 가솔린/CNG Bi-fuel 엔진개조 기술 개발

  • 박명호 (강원대학교 기계공학과)
  • Received : 2010.04.01
  • Accepted : 2010.06.25
  • Published : 2010.07.31
Download PDF
⟨ Previous Next ⟩

Abstract

Natural gas, a fossil fuel contained mostly of methane, is one of the cleanest alternative fuels. It can be used in the form of compressed gas(CNG) or liquefied natural gas(LNG) to cars and trucks. And, dedicated natural gas vehicles are designed to run on natural gas only, while Bi-fuel vehicles can also run on gasoline or CNG, especially, bi-fuel can be defined as the simultaneous combustion of two fuels. In this study, converted gasoline marine system to CNG Bi-fuel system which is made up of injector, regulator, tank and ECU is converted. And estimated the fuel system and engine power compared the result with gasoline engine is estimated. As a result, CNG engine shows low exhaust emissions but maxium power is 7% reduced compared to gasoline engine.

천연가스는 메탄을 주성분으로 하는 청정한 대체연료로 자동차나 트럭 등에 압축천연가스와 액화천연가스 형태로 사용할 수 있다. 그리고, 천연가스만을 사용하는 전소엔진과 가솔린 및 천연가스를 동시에 사용할 수 있는 겸용엔진이 있으며, 특히, 겸용엔진의 경우 두가지 연료를 동시에 사용할 수 있는 것으로 정의할 수 있다. 본 연구에서는 선박용 가솔린 시스템을 인젝터, 레귤레이터, 연료탱크 및 전자제어장치로 구성된 압축 천연가스 겸용시스템으로 전환시켜 연료시스템과 동력값을 비교하였다. 그 결과, 천연가스엔진의 경우 적은 배출가스를 나타내었으며 최대동력은 가솔린엔진과 비교 약 7%정도 감소함을 확인할 수 있었다.

Keywords

References

  1. M, H. Park, "Diesel engine combustion characteristics on the natural gas mixing", KIGAS, vol. 11, pp. 9-12, 2007.
  2. S. S. Yoon and B. C. Choi, "Control system for LNG dual-fuel natural gas engine", Spring Conference Proceeding, KSAE06-S0305, pp. 1910-1915, 2007.
  3. J. I. Yoon and S. T. Oh, "Effect of two staged inter-cooler on efficiency of LNG liquefaction proces", Journal of the Korean Society of Marine Engineering, vol. 34, no. 1, pp. 46-52, 2010. https://doi.org/10.5916/jkosme.2010.34.1.046
  4. J. Y. Kim and J. Y. Ha, "The comparison of performance and emission characteristics between CNG engine and gasoline engine", Transactions of the Korean Socity of Automotive Engineers, vol. 11, pp. 16-21, 2003.
  5. M. Ishii, "Analysis of emission reduction potential and power output of natural gas engine", Japanese Automotive Technology, vol. 47, pp.60-65, 1993.
  6. C. G. Chang and C. W. Park, "A Study on performance characteristics for a CNG regulators of automotive vehicle", KIKAS, vol. 11, no. 4, pp. 12-16, 2007.

Cited by

  1. 피크부하용 혼소엔진발전의 경제성 분석 vol.61, pp.9, 2012, https://doi.org/10.5370/kiee.2012.61.9.1260
  2. LNG 추진 선박 엔진용 GVT 제어 시스템 개발 vol.21, pp.4, 2017, https://doi.org/10.9726/kspse.2017.21.4.070