| 제목 |
단일영역 열발생량 계산법을 사용한 IDI, HSDI 디젤엔진과 SI엔진의 연소특성 비교에 관한 연구 |
| 분야 |
엔진 및 연소 |
| 언어 |
Korean |
| 저자 |
이석영(부산대학교), 전충환(부산대학교), 장영준(부산대학교), 정구섭(진주국제대학교) |
| Key Words |
One-zone heat release(단일영역 열발생량), Crevice loss(틈새손실), Specific heat ratio(비열비), Heat transfer loss(열전달 손실) |
| 초록 |
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. |
| 원문(PDF) |
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