| 제목 |
외기온도 및 냉간시동에 따른 PEMS와 SEMS 장비의
소형 경유차의 실제도로 주행 질소산화물 상관성 연구 |
| 분야 |
연료 및 배기 |
| 언어 |
Korean |
| 저자 |
유영수(한국교통대학교), 정준우(한국교통대학교), 김승리(한국교통대학교), 심인한(한국교통대학교), 전문수(한국교통대학교), 차준표(한국교통대학교) |
| Key Words |
Real driving emission(실제도로 주행 배출가스), Portable emission measurement system(이동식 배출가스 측정장비), Smart emissions measurement system(센서 기반 이동식 배출가스 측정 장비), Nitrogen oxide(질소산화물), Ambient temperature(외기온도) |
| 초록 |
To determine the correlation between PEMS and SEMS in real driving, PEMS and SEMS equipment were installed on a diesel vehicle with LNT and SCR systems. There were some problems, such as the expensive charge for the test operation and the need for complex equipment to conduct the RDE test with the PEMS equipment. As such, the SEMS equipment is simpler than the PEMS equipment as it consists of an OBD signal from the test vehicle and NOx sensors. These equipment were sensitive to the ambient temperature and to cold or hot start in the measurement of the NOx emissions exhausted from the test vehicle. Therefore, the purpose of this study was to measure the NOx emissions using the PEMS and SEMS equipment simultaneously to examine the correlation between NOx emissions and ambient temperature as well as cold or hot start. It was apparent that the lower the ambient temperature was, the higher the NOx emissions. Moreover, the NOx emissions in the cold-start condition were higher than those in the hot-start condition due to the warm-up after the treatment, such as LNT and SCR. There was a small difference, however, between the correlation between the NOx emissions and the ambient temperature as well as cold or hot start measured using PEMS equipment and that measured using SEMS equipment. |
| 원문(PDF) |
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