[표제지 등]
제출문
요약문
SUMMARY
List of Table
List of Figure
칼라
목차
제1장 서론 18
제2장 매연여과장치 1차 시작품의 내구성 평가 20
제3장 매연여과장치의 국산 2차 시작품 제작 40
제1절 국산 시작품의 설계 40
제2절 국산 시작품 제작을 위한 부품 개발 47
제3절 국산 시작품의 제작 및 설치 54
제4절 디지탈 콘트롤러의 개발 57
제4장 매연여과장치 국산 2차 시작품의 실험실적 성능평가 71
제1절 실험목적 71
제2절 시험내용 및 방법 72
제3절 결과 및 고찰 83
1. 엔진 및 배출가스 성능 83
2. 재생성능평가 90
3. 미규제 유해물질 분석 93
4. 장치의 성능인자 최적화 시험 99
제4절 결론 106
제5장 매연여과장치 국산 2차 시작품의 실차주행성능평가 108
제1절 실차 주행성능 측정 장치의 구성 108
제2절 주행 성능 시험의 조건 109
제3절 주행성능평가 결과 분석 112
제4절 문제점 및 개선 사항 125
제5절 결론 126
제6장 결론 127
참고문헌 130
[title page etc.]
Contents
Chapter 1. Introduction 18
Chapter 2. Durability evaluation for 1st homemade diesel particulate trap system 20
Chapter 3. Manufacturing of 2nd homemade diesel particulate trap system 40
Section 1. Design of homemade trap system 40
Section 2. Development of components for manufacturing the homemade trap system 47
Section 3. Manufacturing and installation of homemade trap system 54
Section 4. Development of digital controller 57
Chapter 4. Bench test of 2nd homemade diesel particulate trap system 71
Section 1. Experimental purpose 71
Section 2. Experimental content and method 72
Section 3. Result and discussion 83
1. Exhaust gas and engine performance 83
2. Evaluation for regeneration performance 90
3. Unregulated emission analysis 93
4. Optimization for particulate trap system's control factor 99
Section 4. Conclusion 106
Chapter 5. Evaluation for on-road driving performance of 2nd homemade diesel particulate trap system 108
Section 1. Composition of on-road driving performance measuring apparatus 108
Section 2. Condition of driving performance test 109
Section 3. Analysis of evaluation result for driving performance 112
Section 4. Problems and enhancement 125
Section 5. Conclusion 126
Chapter 6. Conclusion 127
Reference 130
Table 1. Specification of a Test City Bus 21
Table 2. Exhaust Gas Temperature Distribution for the Test Route 25
Table 3. Smoke Test Result of the City Bus 30
Table 4. Filter History 32
Table 5. Failure History 33
Table 6. The Change of Controller Setting Value 34
Table 7. Regeneration Characteristics with Various Ce Additive Concentration (100ppm, 150ppm) 35
Table 8. Design Improvement in Trap System 40
Table 9. Material Property of SUS 304 45
Table 10. Specification of Pressure Sensor 49
Table 11. Specification of Air Solenoid Valve 52
Table 12. Material Property of Spring Wire 52
Table 13. Table of Parts Sourcing 54
Table 14. Pin Connection 62
Table 15. Recording Table of Status 64
Table 16. Table of Jumper Selection 64
Table 17. Parts List of ECU 67
Table 18. Parts List of ECU 68
Table 19. 6 Mode Driving Cycle 73
Table 20. D-13 Mode Driving Pattern 74
Table 21. JAPAN-13 Mode Driving Pattern 75
Table 22. Specification of Mini Dilution Tunnel 77
Table 23. Driving Condition for Soot Accumulation Mode 83
Table 24. Smoke Mode Test Results 90
Table 25. The Concentration of PAH in Diesel Particulate without and with Diesel Trap System 96
Table 26. The Concentration of BaP per Hour without and with Diesel Trap System 97
Table 27. Regeneration Characteristic 100
Table 28. Troubles During Field Test and It's Action Plan 125
Fig.1. View of the ceramic trap system installed on the city bus for field test 20
Fig.2. Schematic layout(latout) of the modified trap system 22
Fig.3. Trap size determination according to engine rated power 23
Fig.4. Pressure drop across the trap in relation to engine rated power, for trap loadings between o and 20g 23
Fig.5. View of the data logging system installed on the city bus 26
Fig.6. Data acquisition flow-chart 27
Fig.7. The basic module of filter canistering 28
Fig.8. Regeneration phenomena with Ce concentration 100ppm (Normal condition) 36
Fig.9. Regeneration phenomena with Ce concentration 150ppm (Normal condition) 36
Fig.10. Regeneration phenomena below Ce concentration 50~80ppm (Abnormal condition) 38
Fig.11. Throttle and bypass valve 42
Fig.12. Design of exhaust manifold 43
Fig.13. Design of filter module 44
Fig.14. Design of support bracket 44
Fig.15. Pneumatic circuit diagram 46
Fig.16. Drawing of thermocouple 47
Fig.17. Thermocouple output volt vs temperature 47
Fig.18. Layout drawing of pressure sensor 50
Fig.19. Internal circuit diagram of pressure sensor 50
Fig.20. Air service(sevice) unit 51
Fig.21. Design of spring 53
Fig.22. Picture of system installation (top view) 55
Fig.23. Picture of system installation (rear view) 55
Fig.24. Picture of air supply system 56
Fig.25. Picture of control system 56
Fig.26. Analog type controller 57
Fig.27. Digital type controller 57
Fig.28. Block diagram of ECU 58
Fig.29. Control flow chart 59
Fig.30. Communication part pin connection 63
Fig.31. Electric circuit 66
Fig.32. PCB layout (front) 69
Fig.33. PCB layout (rear) 70
Fig.34. Smoke mode driving cycle 73
Fig.35. Schematic diagram of experimental measuring apparatus 76
Fig.36. View of engine dynamometer and trap system 77
Fig.37. Torque, temperature and back pressure distribution for soot accumulation mode 79
Fig.38. Engine performance test results with and without trap system 84
Fig.39. Gaseous emission test results of the engine rpm at full load (a, b, c) 85
Fig.40. Smoke test results for performance mode 86
Fig.41. Gaseous emission test results for 6 mode 87
Fig.42. Exhaust emission test results for each regulation mode(a, b) 88
Fig.43. Exhaust back pressure distribution with soot accumulation mode 91
Fig.44. Filter trap soot holding distribution with exhaust back pressure 92
Fig.45. Back pressure and temperature profiles during throttling regeneration with ECU 92
Fig.46. The concentration of SOF in diesel particulate without and with diesel trap system at D-13 & JAPAN-13 mode 94
Fig.47. The concentration of sulfate in diesel particulate without and with diesel trap system at D-13 & JAPAN-13 mode 98
Fig.48. The pressure map of trap system 102
Fig.49. The pressure distribution for a various load rate with filter trap system (a, b, c, d) 105
Fig.50. Data logging system 108
Fig.51. Screen hard copy of DAS 109
Fig.52. Drawing route of city bus for field test 110
Fig.53. Field data (self regeneration) 112
Fig.54. Field data (self regeneration) 112
Fig.55. Field data (self regeneration) 113
Fig.56. Field data (forced regeneration) 113
Fig.57. Field data (throttling) 114
Fig.58. Field data (forced regeneration) 114
Fig.59. Field data (self regeneration) 115
Fig.60. Field data (forced regeneration, dangerous case) 115
Fig.61. Field data on vehicle test (1-1) 116
Fig.62. Field data on vehicle test (1-2) 116
Fig.63. Field data on vehicle test (2-1) 117
Fig.64. Field data on vehicle test (2-2) 117
Fig.65. Field data on vehicle test (3-1) 118
Fig.66. Field data on vehicle test (3-2) 118
Fig.67. Field data on vehicle test (4-1) 119
Fig.68. Field data on vehicle test (4-2) 119
Fig.69. Field data on vehicle test (5-1) 120
Fig.70. Field data on vehicle test (5-2(21)) 120
Fig.71. Engine speed distribution 121
Fig.72. Back pressure distribution 121
Fig.73. Filter inlet temperature distribution 122
Fig.74. Filter outlet temperature distribution 122
Fig.75. Statistical operation status 123