声明
NOMENCLATURE
Chapter 1 Introduction
1.1 Background
1.2 Working Principle of Rotary Engine
1.3 Characteristics of Rotary Engine
1.4 Difference between rotary and reciprocating engines
1.5 Advantages and Disadvantages of Wankel Rotary Engine with respect to Reciprocating Engine
1.5.1 Advantages of Wankel Rotary Engine over Reciprocating Engine
1.5.2 Disadvantages of Wankel Rotary Engineover Reciprocating Engine
1.6 Rotary engine development and application status
1.6.1 Development and application in China
1.6.2 Development and application indifferent countries at present
1.7 Biodiesel as fuel in internal combustion (IC) engine
1.7.1 Biodiesel production
1.7.2 Characteristics of biodiesel fueledrotary engine
1.7.3 Advantages of biodiesel fueled rotary engine
1.8 Chapter Conclusions
Chapter 2 Literature Review
2.1 Introduction and Background
2.2 Technical-conventional Rotary Engines
2.2.1 Applications other than to Automobiles
2.3 Techniques for improving engine performance
2.3.1 Optimizing Ignition Parameters
2.3.2Optimizing Injection Parameters
2.4 Types of fuels and utilization methods in Rotary Engine for performance improvement
2.4.1 Single fuel component
2.4.2 Multi fuel component
2.5.1 Emissions: the technology enforcer
2.5.2 Tomorrows Rotary Engine
2.6 Summary of research gaps
2.7.1 Bio-fuels: a prudent step
2.7.2 Why Bio-diesel
2.8 Purposes of the Research
2.9 Content of Thesis
2.10 Chapter Conclusions
Chapter 3 Research Methodology
3.1 Spray Experimental Set-up
3.1.1 Constant volume vessel
3.1.2 Optical diagnostic and Image processing
3.1.3 Fuel properties
3.2.1 Simulation Geometric model generation and meshing of DIRE
3.2.2 Numerical/Computing models selection
3.2.3 Boundary conditions
3.3 Numerical/Computing Models and Model validation
3.3.1 Turbulence model
3.3.2 Discrete Phase Model
3.3.3 Combustion model
3.3.4 NOx model
3.3.5 Soot Model
3.3.6Validation of model
3.4 Conclusions
Chapter 4 Study on spray characteristics and influence factors of combustion process in a biodiesel fueled direct injection rotary engine
4.1 Spray under inert conditions
4.1.1 Liquid spray penetration length (SL) characteristics
4.1.2 Spray cone angle characteristics
4.1.3 Spray pattern (SP) characteristics
4.2 Compression stage Air-Fuel mixture formation at different chamber conditions
4.3 Conclusions
Chapter 5 Effect of injection timing on mixture formation and combustion process in a direct injection rotary engine (DIRE) fueled with biodiesel
5.1 Compression Stage Air Flow Analysis
5.2 Compression stage Air-Fuel movement process Analysis
5.2.1 Start stage Air-Fuel movement process at 100°CA BTDC injection timing
5.2.2 Middle stage Air-Fuel movement process at 80°CA BTDC injection timing
5.2.3 Final stage Air-Fuel movement process at 60°CA BTDC injection timing
5.3 Analysis of combustion process
5.4 Analysis of major emissions
5.5 Conclusions
Chapter 6 Effect of advance ignition timing on mixture formation and combustion process in a direct injection rotary engine (DIRE) fueled with biodiesel
6.1 Compression Stage Air Flow Analysis
6.2 Compression stage Air-Fuel movement process Analysis at 80°CA (BTDC) injection timing
6.3 Effects of advance spark timing on combustion process at 80°CA (BTDC) injection timing
6.4 Conclusions
Chapter 7 Effect of equivalence ratio on combustion pro-cess in a direct injection rotary engine (DIRE) fueled with biodiesel
7.1 Pressure
7.2 Chamber Temperature
7.3 Combustion process analysis
7.4Analysis of Emissions
7.5 Conclusions
Chapter 8 Conclusion and recommendations
8.1 Summary of thesis
8.2 Recommendations for future work
参考文献
致谢
Publications
APPENDIX
Appendix A
江苏大学;
