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

The Korean Society of Mechanical Engineers (대한기계학회)
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Engine Performance and Emissions Characteristics in an LPG Engine Converted with Mixer and LPi System Fuel Supply Methods

개조된 LPG엔진에서 Mixer와 LPi 연료공급방식의 엔진성능 및 배기특성

  • 최경호 (계명대학교 기계ㆍ자동차공학부) ;
  • 김진호 (계명대학교 대학원 기계ㆍ자동차공학부) ;
  • 조웅래 (계명대학교 대학원 기계ㆍ자동차공학) ;
  • 한성빈 (인덕대학 컴퓨터응용기계계열)
  • Published : 2004.09.01
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Abstract

In this study, performance and emissions characteristics of an liquefied petroleum gas (LPG) engine converted from a diesel engine were examined by using mixer system and liquid propane injection (LPi) system fuel supply methods. A compression ratio for the base diesel engine, 21, was modified into 8, 8.5, 9 and 9.5. The cylinder head and the piston crown were modified to roe the LPG in the engine. Ignition timing was controlled to be at minimum spark advance for best torque (MBT) each case. Engine performance and emissions characteristics are analyzed by investigating engine power, brake mean effective pressure (BMEP), brake specific fuel consumption (BSFC), volumetric efficiency, CO, THC and NOx. Experimental results showed that the LPi system generates higher power and lower emissions than the conventional mixer fuel supply method.

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References

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