Study of the effects on exhaust emissions in direct injection diesel engines: Effects of fuel injection system,distillation properties and cetane number |
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| Institution: | 1. King Abduallah University of Science and Technology (KAUST), Clean Combustion Research Center (CCRC), Thuwal, Jeddah 23955-6900, Saudi Arabia;2. Department of Mechanical Engineering, Khalifa University of Science and Technology, 127788 Abu Dhabi, United Arab Emirates;3. Department of Mechanics, School of Applied Mathematical and Physical Sciences, National Technical University, 15780 Athens, Greece;1. Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, IL 61801, USA;2. Beijing Institute of Technology, Beijing 100081, China;3. Department of Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, IL 61801, USA;4. Department of Plastics Engineering, UMass Lowell Francis College of Engineering, MA 01854, USA;1. Queensland University of Technology, Biofuel Engine Research Facility (BERF), 2 George St, Brisbane City, Queensland 4000, Australia;2. Queensland University of Technology, International Laboratory for Air Quality and Health, 2 George St, Brisbane City, Queensland 4000, Australia;3. Vietnam Maritime University, 484 Lach Tray St, Hai Phong City 180000, Viet Nam;4. School of Engineering, Deakin University, 75 Pigdons Rd, Geelong, Victoria 3216, Australia;1. State Key Laboratory of Engines, Tianjin University, Tianjin 300072, China;2. Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, IL 61801, USA;3. State Key Laboratory of Automobile Dynamic Simulation, Jilin University, Jilin 130012, China;4. Engine Research Center, University of Wisconsin-Madison, Madison, WI 53705, USA;5. Center for Combustion Energy, Tsinghua University, Beijing 100084, China;1. The Unit of Nuclear Engineering, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel;2. Dipartimento Energia, Politecnico di Torino, Corso Duca degli Abruzzi, 24-10129 Torino, Italy;1. State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China;2. Collaborative Innovation Center of Intelligent New Energy Vehicle, Beijing 100084, China |
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| Abstract: | The effect of injection nozzle, diesel fuel density (volatility) and cetane number on diesel exhaust emissions were investigated. Decreasing injection nozzle hole diameter decreases PM emission. However, a small nozzle hole increases NOx emission and decreases the effect of fuel on PM emission. Decreasing fuel density is effective for reduction of NOx emission. But the effect is smaller than that of nozzle hole diameter and injection pressure. Furthermore injection timing retardation decreases the effect of fuel density on NOx emission. |
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