Dedicated exhaust gas recirculation in spark ignition engines

• Autorzy: Rehan S.

Identyfikatory

DOI

10.12913/22998624/69339

• Języki publikacji: EN

Abstrakty

EN

The impact of high levels of exhaust gas recirculation (EGR) has been well documented to decrease fuel consumption and reduce emissions of spark ignition engines. But there are also many limitations associated with this technology like EGR control and tolerance, which can reduce the potential efficiency improvements. A new concept called D-EGR has been presented in which the exhaust from a sub group of power cylinders is channeled back to the intake of all the cylinders. In this literature review both experimental and numerical analysis of this technology is shown. In the former case experiments were performed on 2.0 L PFI engine with gasoline as a fuel in part and high load conditions and the results show that at part loads the D-EGR engine can lead to lower Brake Specific Fuel Consumption, lower HC and CO emissions and higher brake thermal efficiency. At high load operations the results show improved combustion stability and superior knock tolerance. In the numerical studies it shows comparable thermal efficiency with conventional spark ignition (SI) engines and reduction in NOX emissions.

Słowa kluczowe

EN

exhaust gas recirculation; NOx emissions; spark ignition engines

• Wydawca: Lublin University of Technology ; Polish Society of Ecological Engineering (PTIE), Branch of PTIE in Lublin
• Czasopismo: Advances in Science and Technology. Research Journal
• Rocznik: 2017
• Tom: Vol. 11, no 2
• Strony: 44--50
• Opis fizyczny: Bibliogr. 6 poz., fig., tab.

Twórcy

autor

Rehan S.

• Department of Mechanical Engineering, Michigan Technological University, Houghton, Michigan, USA, 49931

Bibliografia

• 1. Heywood John B., Internal Combustion Engine Fundamentals, McGraw-Hill, Inc., 1988, ISBN: 0-07028637-X.
• 2. Alger, T. and Mangold, B., Dedicated EGR: A New Concept in High Efficiency Engines, SAE Int. J. Engines 2(1):620-631, 2009, doi:10.4271/2009- 01-0694.
• 3. Gingrich, J., Gukelberger, R., Alger, T., and Mohan, V., In-cylinder Fuel Reformation for High EGR Dilution SI Engines, SIA International Conference and Exhibition, The Spark Ignition engine of the Future, 2013.
• 4. Gukelberger, R., Gingrich, J., Alger, T., Almaraz, S. et al., LPL EGR and D-EGR® Engine Concept Comparison Part1: Part Load Operation, SAE Int. J. Engines 8(2):2015, doi:10.4271/2015-01-0783.
• 5. Gukelberger, R., Gingrich, J., Alger, T., and Almaraz, S., LPL EGR and D-EGR® Engine Concept Comparison Part 2: High Load Operation, SAE Int. J. Engines 8(2):2015, doi:10.4271/2015-01-0781.
• 6. Lee, S., Ozaki, K., Iida, N., and Sako, T., A Potentiality of Dedicated EGR in SI Engines Fueled by Natural Gas for Improving Thermal Efficiency and Reducing NOx Emission, SAE Int. J. Engines 8(1): 2015, doi:10.4271/2014-32- 0108.

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)