Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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A Study on the Comparison of the Combustion Characteristics among an IDI, a HSDI Diesel Engine and a SI Engine using One-zone Heat Release Analysis

단일영역 열발생량 계산법을 사용한 IDI, HSDI 디젤엔진과 SI엔진의 연소특성 비교에 관한 연구

  • Lee Sukyoung (Department of Mechanical Engineering, RIMT, Pusan National University) ;
  • Jeong Kuseob (Department of Automotive Engineering, Jinju International University) ;
  • Jeon Chunghwan (Department of Mechanical Engineering, RIMT, Pusan National University) ;
  • Chang Yongjune (Department of Mechanical Engineering, RIMT, Pusan National University)
  • 이석영 (부산대학교 기계공학과 대학원) ;
  • 정구섭 (진주국제대학교 자동차공학부) ;
  • 전충환 (부산대학교 기계공학부 기계기술연구소) ;
  • 장영준 (부산대학교 기계공학부 기계기술연구소)
  • Published : 2005.11.01
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Abstract

Heat release analysis is a very importent method in understanding the combustion phenomena inside an engine cylinder. In this study, one-zone heat release analysis was used with the mesured cylinder pressures of an IDI(indirect injection), a HSDI(high speed direct injection) and a SI(spark ignition) engine. It has benefits of simple equation, fast speed, reliability. The object of the study is to compare the combustion characteristics among an IDI, a HSDI and SI engine. Result of analysis, the maximum heat release rate of a HSDI is higher than an IDI because of long ignition delay period. The heat release curve of a IDI is more linear than an HSDI, so the combustion characteristics of a IDI is similiar to that of an SI engine. There is a suggestion here that the combustion efficiency of a HSDI is highest of that of all engines because of the smallest heat transfer loss of all engines.

Keywords

References

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