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A STUDY OF DIFFERENT EGR ROUTES ON A HEAVY DUTY STOICHIOMETRIC NATURAL GAS ENGINE
ISSN: 0148-7191, e-ISSN: 2688-3627
Published September 13, 2009 by Consiglio Nazionale delle Ricerche in Italy
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Exhaust gas recirculation (EGR) is a suitable strategy to optimize heavy duty natural gas (NG) engines. EGR could be utilized to have high specific power, with low thermal stress, but also to increase engine efficiency. NG fuelling permits a large flexibility in EGR system design, due to very clean engine exhaust. In this paper, three types of EGR routes have been studied. The best set up, which can introduce the highest EGR quantities, to provide the best reduction of the thermal load at rated power, was found to be a cooled low pressure EGR route. However high low pressure route (HLPR) could give the possibility to increase engine efficiency by modulating the power output in the widest un-throttled range operation.
CitationSimio, L., M.Gambino, ., and S.Iannaccone, ., "A STUDY OF DIFFERENT EGR ROUTES ON A HEAVY DUTY STOICHIOMETRIC NATURAL GAS ENGINE," SAE Technical Paper 2009-24-0096, 2009, https://doi.org/10.4271/2009-24-0096.
- Gambino, M.Corbo, P.Iannaccone, S.Unich, A. “Comparison between Lean-Burn and Stoichiometric Technologies for CNG Heavy-Duty Engines”, SAE Paper 950057, SAE, 1995 Transactions Journal of Fuels & Lubricants, Volume 104, Section 4, pp. 20–22
- Bhargava, S. Clark, N. Hildebrand, M. “Exhaust Gas Recirculation in a Lean-Burn Natural Gas Engine”, SAE, 981395
- Nellen, C.Boulouch, K. “Natural Gas Engines for Cogeneration: Highest Efficiency and Near-Zero-Emissions through Turbocharging, EGR and 3-Way Catalytic Converter”, SAE, 2000-01-2825
- Ibrahim, A.Bari, S. “Optimization of a natural gas SI engine employing EGR strategy using a two –zone combustion model”, Science Direct, 2008, FuelVolume 87, pp 1824–1834
- Reppert, T.Chiu, J. “Heavy-Duty Waste Hauler with Chemically Correct Natural Gas Engine Diluted with EGR and Using a Three-Way Catalyst”, Subcontract report NREL/SR-540-38222, September 2005. Type references over these paragraphs.
- Ballario, V.Lisbona, M.G.Venezia, C. “L'analisi fluidodinamica”, Report CRF, “Come progettare un motore ottimizzato”, N. 1–14/01/2005, pp 5–7
- Heywood, JB, Internal Combustion Engine Fundamentals, Mc Graw-Hill International Editors, 1988, pp. 415–418