| 제목 |
고속 NO 분석기를 이용한 SI 엔진에서의 사이클 변동에 따른 NO 배출에 관한 분석 |
| 분야 |
엔진 및 연소 |
| 언어 |
Korean |
| 저자 |
이경환(순천대학교), 김현우(순천대학교), 성정민(순천대학교) |
| Key Words |
SI engine(전기점화기관), BMEP(제동평균유효압력), Nitrogen oxide(질소산화물), Linear correlation coefficient(선형상관계수) |
| 초록 |
The NO emissions at the exhaust manifold were investigated with a fast NO analyzer to investigate the cycleby-cycle variations on NO emissions level and the dependence of NO emissions on combustion. The measurement was performed with a part load condition with respect to the mixture ratios and the changes in loads at 1800rpm. The averaged values were obtained during 200 cycles. We found that there is characteristic pattern in NO emissions from exhaust port and it was possible to set a representative value with the data sampled during specific period. As the load increased, the characteristics of NO emissions were more dependent on combustion pressures. It was also analyzed that the correlation between combustion pressures and NO emisions different equivalence ratios tends to increase as the mixture goes leaner. Furthermore, this correlation for the lean mixture near the lean limit seemed to be kept. |
| 원문(PDF) |
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