[표제지 등]
제출문
요약문
SUMMARY
List of Table
List of Figure
칼라
목차
제1장 서론 17
제2장 세계 각국의 천연가스 차량 개발 동향 19
제1절 세계의 천연가스 차량(디젤 자동차 포함) 보급 현황 19
제2절 경유차를 CNG 혼소 또는 전소로 개량하는 기술 동향 20
제3장 CNG 혼소(CNG-Dual Fuel) 엔진의 개발 30
제1절 기술적 개발 경위 30
제2절 CNG 혼소엔진의 구성 31
제3절 개조엔진의 제원 및 구성품의 기능 32
제4장 개조 엔진에 대한 성능 및 배출가스 평가 38
제1절 실험장치 및 방법 38
제2절 시험결과 및 고찰 56
제3절 결론 76
제5장 실차 적용시험 및 장착기술의 개발 78
제1절 차량 제원 및 장치 78
제2절 차량 Lay-out 설계 84
제3절 실차시험 88
제4절 결론 95
제6장 CNG혼소엔진용 연료 공급장치 시작품제작 96
제1절 국산화 개발 대상 품목 선정 96
제7장 향후 계획 및 요망사항 99
제1절 2차년도 실차개발 99
제2절 1차년도 개발 중 문제점 해결방안 99
제3절 CNG 혼소장치의 실용화를 위해 필요한 선결 요건 100
제8장 위탁연구과제 요약문 101
제1절 연구개발의 목적 및 중요성 101
제2절 연구개발의 내용 및 범위 102
제3절 연구개발결과 및 활용에 대한 건의 103
제9장 결론 104
참고문헌 105
부록 위탁연구과제 : NOx 저감을 위한 촉매 개발 109
목차 111
제1장 서론 113
제2장 NO 촉매분해 반응 115
제1절 서론 115
제2절 NO 제거방법 118
제3절 촉매분해반응의 열역학 128
제3장 실험장치 및 방법 130
제1절 실험장치 130
제2절 실험방법 131
제4장 실험결과 및 고찰 135
제1절 촉매의 특성 135
제2절 촉매의 내구성 148
제3절 촉매의 활성 155
제4절 촉진제 Ag의 영향 157
제5장 결론 160
참고문헌 162
[title page etc.]
Contents
Chapter 1. Introduction 17
Chapter 2. Development status of CNG Vehicle 19
Section 1. NGV(including diesel vehicle) status in the world 19
Section 2. Conversion technology for diesel vehicle to dual fuel or dedicated CNG vehicle 20
Chapter 3. Development of CNG-diesel dual fuel engine 30
Section 1. History of development 30
Section 2. Composition of CNG-diesel dual fuel engine 31
Section 3. Specification of converted engine and component 32
Chapter 4. Performance and emission test for converted engine 38
Section 1. Test equipment and method 38
Section 2. Test result and discussion 56
Section 3. Conclusion 76
Chapter 5. Vehicle test and installation 78
Section 1. Specification of the vehicle and the component 78
Section 2. Design of vehicle installation lay-out 84
Section 3. Vehicle test 88
Section 4. Conclusion 95
Chapter 6. Sample manufacture of fuel delivery system 96
Section 1. Selection of component for future localization 96
Chapter 7. Future plan and recommendation(recommendatioin) 99
Section 1. The second year vehicle test 99
Section 2. Action plan for problem solving 99
Section 3. Prerequisite condition for massive application of CNG dual fuel technology 100
Chapter 8. Summary for consignment subject 101
Section 1. Purpose and importance of research 101
Section 2. Content and scope 102
Section 3. Result and recommendation 103
Chapter 9. Conclusion 104
References 105
Appendix 1. Consignment subject : Development of catalytic converter for NOx reduction 109
Table 1. Number of CNG Vehicle and Gas Station by Each Country 19
Table 2. Test Engine Specification 32
Table 3. 6 Mode Driving Pattern 46
Table 4. 13 Mode Driving Pattern(Pattem)(Japan) 47
Table 5. D-13 Mode Driving Pattern (Korea) 52
Table 6. Test Results of the Engine Performance with Injection Timing Change 58
Table 7. Test Results of the Exhaust Emission with Engine Performance 59
Table 8. Test Results of the Engine Performance with BTDC14°(Diesel Mode) and BTDC14°(Dual Fuel Mode) 61
Table 9. Test Results of the Exhaust Emissions with BTDC14°(Diesel Mode) and BTDC14°(Dual Fuel Mode) 62
Table 10. Test Results of the Exhaust Emissions by Each Test Mode 68
Table 11. Test Results of the Exhaust Emissions by Each Test Mode(10% Power up Dual Mode) 75
Table 12. Specification of Test City Bus 78
Table 13. Dimension of CNG Cylinder 81
Table 14. Trouble and Maintenance 93
Fig.1. CNG-Diesel dual fuel engine 22
Fig.2. CNG mixer type system of NAMI research institute in Russia(Rusia) 22
Fig.3. Mechanical A/F system in Netherland 23
Fig.4. CNG-Diesel dual fuel system of AFS Co. in Canada 23
Fig.5. Diesel type CNG SI engine 25
Fig.6. A/F control system (Institute of TNO) 26
Fig.7. Open chamber type (SWRI in U.S.A.) 26
Fig.8. Lean burn CNG engine NEBULA type chamber (RICARDO) 27
Fig.9. View of chamber type of RICARDO Co. 27
Fig.10. Chamber type of garbage vehicle in Tokyo gas Co. 28
Fig.11. Prechamber type of SWRI in U.S.A. 28
Fig.12. Prechamber and piston head of ORTECH in Canada 29
Fig.13. View of CNG dual fuel engine 31
Fig.14. Eagle microprocessor 34
Fig.15. Rack actuator 34
Fig.16. Hall effect unit 35
Fig.17. Throttle position sensor 35
Fig.18. View of CNG Injector 36
Fig.19. Manifold pressure sensor 37
Fig.20. Schematic diagram of test apparatus 39
Fig.21. View of CNG dual fuel engine in test bench 40
Fig.22. View of CNG tank 40
Fig.23. View of the optimization with dual fuel engine 43
Fig.24. Comparison of the engine performance with BTDC 17° (Diesel mode) and BTDC 14° (Diesel mode) 57
Fig.25. Comparison of the engine performance with BTDC 17° (Diesel mode) and BTDC 14° (Diesel mode) 63
Fig.26. Comparison of the smoke opacity with BTDC 17° (Diesel mode) and BTDC 14° (Dual mode) by engine performance test 65
Fig.27. Emission trends of the test result by engine performance(a, b, c) 66
Fig.28. Comparison of the engine performance with BTDC 17° (diesel mode) and BTDC 14° (10% Power up dual mode) 70
Fig.29. Comparison of the smoke opacity with BTDC 17° (Diesel mode) and BTDC 14° (10% Power up Dual Mode) by engine performance test 72
Fig.30. Emission trends of test result by engine performance at BTDC 17° (Diesel mode) and BTDC 14° (10% Power up Dual mode) 73
Fig.31. Installation in CNG dual fuel engine for actual test bus 80
Fig.32. Locked bracket 82
Fig.33. CNG S.S. tube 82
Fig.34. Pressure regulator and shut off solenoid valve 83
Fig.35. Gas refilling valve and master shut off valve 83
Fig.36. Lay-out of city bus 84
Fig.37. View of CNG tank in city bus 86
Fig.38. Locked braket and bolt 86
Fig.39. Gas tube braket 87
Fig.40. View of installation by CNG tank 87
Fig.41. CNG dual fuel city bus 88
Fig.42. Engine mounting block 98