커먼레일 단기통 디젤엔진에서 EGR율에 따른 연소 및 배기특성

다국어 초록 (Multilingual Abstract)

The purpose of this work is an experimental investigation of combustion and emission characteristics in DI diesel engine applied high EGR rate as known general method of low-temperature combustion. In order to analyze theeffect of EGR rate variation, single-cylinder DI diesel engine was operated under various EGR rate conditions. In addition, injection timing conditions was variously controlled to investigate the effect of injection timing in DI diesel engine using the EGR system. NOx emissions were decreased, as a result, by increasing EGR rate. Soot emissions were generally increased under applied EGR conditions. However, soot emissions were decreased in a few injection timings under high EGR rate conditions. The results showed that the charge could have a premix period sufficiently due to be increased the ignition delay period by decreased oxygen concentrations in combustion chamber under the high EGR rate.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 실험 장치 및 방법
• 3. 실험 결과 및 고찰
• 4. 결론
• 후기
• References