Combustion Characteristics of Pre-mixed Charge Compression Ignition Engines with Natural Gas Applied to 4-Cylinders Diesel Engine

4기통 디젤기관에 적용한 천연가스 예혼합 압축착화 기관의 연소특성

  • Published : 2009.04.30

Abstract

In recently, studies concerned to the diesel engine uses a natural gas as a fuel oil whose infra has been built already was approached to PCCI or HCCI with keeping a high thermal efficiency and reducing NOx and PM have been researching actively in normally single cylinder. An ignition source is required to bum the natural gas by a spark plug in gasoline engines, due to a higher auto-ignition temperature of natural gas. Then gas oil and DME were introduced as the ignition source. In this study as basic data for practical use of natural gas PCCI and HCCI engines, combustion characteristics and emission characteristics on 4-cylinders natural gas PCCI and HCCI engines with gas oil and DME as ignition sources were analyzed and the engine load range that is main object for practical use of PCCI and HCCI engines was made clearly by empirical experiment.

Keywords

References

  1. P. M. Najt and D. E. Foster, 1983, "Compression-Ignited Homogeneous Charge Combustion", SAE 830264.
  2. R. H. Thring, 1989, "Homogeneous Charge Compression Ignition(HCCI) Engines", SAE 892068.
  3. K. Hatamura, 2005, "Potential and Challenges of HCCI (Homogeneous Charge Compression Ignition) Gasoline Engine", JSAE, Vol. 36, No. 2, pp.13-18.
  4. Z. Chen et al., 2000, "Experimental Study of CI Natural Gas/DME Homogeneous Charge Engine", SAE Paper No. 2000-01-0329.
  5. H. YAMADA, 2007, "A Study of Autoignition Mechanism in Homogeneous Charge Compression Ignition Engine", ENGINE TECHNOLOGY, Vol. 9, No. 2, pp. 56-63.
  6. M. Sjoberg, J. E. Dec and N. P. Cernansky, 2005, "Potential of Thermal Stratification and Combustion Retard for Reducing Pressure-Rise Rates in HCCI Engines Based on Multi-Zone Modeling and Experiments", SAE 2005-01-0138.