표제지
목차
Abstract 8
1. 서론 10
1.1. 연구 배경 10
1.2. 연구목적 12
2. 이론 고찰 13
2.1. 질소산화물 저감 기술 13
2.2. SCR의 원리 13
2.3. NOx Technical Code 14
2.4. NOx Technical File 15
2.5. NOx Emission Standards 16
2.6. 과급 시스템 17
3. 실험 장치 및 방법 18
3.1. 실험 장치 18
3.1.1. 실험 엔진 18
3.1.2. 실험 SCR 20
3.1.3. 실험 계측기기 29
3.2. 실험방법 37
3.2.1. 캠샤프트 각도 조정 37
3.2.2. 연료분사시기 조정 39
4. 실험 결과 및 고찰 43
4.1. 디젤 엔진 Tuning 전후 비교·분석 43
4.1.1. 디젤 엔진 터보차저 출구온도 비교 43
4.1.2. 디젤 엔진 시운전 결과 비교 46
4.1.3. 디젤 엔진 배기가스 온도 비교 49
4.2. 디젤 엔진용 L.P SCR 시운전 결과 비교 53
5. 결론 56
참고문헌 57
초록 62
Table 1. MARPOL - ANNEX Ⅵ : NOx emission limits 12
Table 2. Principal data of 6H21/32 gen-set 19
Table 3. Particulars of NoNOx SCR systems 21
Table 4. Specification of gas analyzer 29
Table 5. Specification of peak pressure indicator 30
Table 6. Specification of charge air pressure transmitter 31
Table 7. Specification of charge air temperature transmitter 32
Table 8. Specification of exhaust gas temperature sensor 33
Table 9. Specification of exhaust gas temperature outlet T/C sensor 34
Table 10. Specification of L.P SCR inlet temperature sensor 35
Table 11. Adjustment of camshaft angle 37
Table 12. Adjustment of shim (No.1. D/E) 41
Table 13. Adjustment of shim (No.2. D/E) 41
Table 14. Adjustment of shim (No.3. D/E) 42
Table 15. Adjustment of shim (No.4. D/E) 42
Table 16. Result of onboard test (No.1. D/E, Load 75%) 47
Table 17. Result of onboard test (No.2. D/E, Load 75%) 47
Table 18. Result of onboard test (No.3. D/E, Load 75%) 48
Table 19. Result of onboard test (No.4. D/E, Load 75%) 48
Table 20. Minimum temperature according to sulfur content 52
Table 21. Result of SCR test (Tier III of No.1. D/E) 54
Table 22. Result of SCR test (Tier III of No.2. D/E) 54
Table 23. Result of SCR test (Tier III of No.3. D/E) 55
Table 24. Result of SCR test (Tier III of No.4. D/E) 55
Fig. 1. SCR NOx removal principle 14
Fig. 2. IMO NOx technical file 15
Fig. 3. MARPOL Annex VI NOx emission limits 16
Fig. 4. Air cooler & turbocharger 17
Fig. 5. HYUNDAI HIMSEN 6H21/32 18
Fig. 6. NoNOx SCR system (L.P SCR) 20
Fig. 7. SCR chamber 21
Fig. 8. Catalyst module 22
Fig. 9. Nozzle injector 23
Fig. 10. Urea dosing unit 24
Fig. 11. Urea supply unit 25
Fig. 12. Soot blowing unit 26
Fig. 13. L.P SCR system 27
Fig. 14. H.P SCR system 27
Fig. 15. Gas analyzer 29
Fig. 16. Peak pressure indicator 30
Fig. 17. Charge air pressure transmitter 31
Fig. 18. Charge air temperature transmitter 32
Fig. 19. Exhaust gas temperature sensor 33
Fig. 20. Exhaust gas temperature outlet T/C sensor 34
Fig. 21. L.P SCR inlet temperature sensor 35
Fig. 22. Fuel injection pump (IMO number) 36
Fig. 23. Camshaft (IMO number) 36
Fig. 24. Adjustment of camshaft angle 38
Fig. 25. Angle adjustment of camshaft 38
Fig. 26. Shim adjustment of fuel injection pumps 39
Fig. 27. Fuel injection pump 40
Fig. 28. T/C outlet temperature comparison of No.1. D/E 44
Fig. 29. T/C Outlet temperature comparison of No.2. D/E 44
Fig. 30. T/C Outlet temperature comparison of No.3. D/E 45
Fig. 31. T/C Outlet temperature comparison of No.4. D/E 45
Fig. 32. Exhaust gas temperature comparison of No.1. D/E 49
Fig. 33. Exhaust gas temperature comparison of No.2. D/E 50
Fig. 34. Exhaust gas temperature comparison of No.3. D/E 50
Fig. 35. Exhaust gas temperature comparison of No.4. D/E 51
Fig. 36. Required temperature according to sulfur content 52