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Effect of CO 2 , N 2 , and Ar on Combustion and Exhaust Emissions Performance in a Stoichiometric Natural Gas Engine
Technical Paper
2014-01-2693
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In recent years, strict emission regulations, the environmental awareness, and the high price of conventional fuels have led to the creation of incentive to promote alternative fuels. Among the alternative fuels, natural gas is very promising and highly attractive for its abundant resources, clean nature of combustion and low encouraging prices. But nitrogen oxides (NOx) emissions are still a problem in natural gas engines. In order to reduce NOx emissions, carbon dioxide (CO2), nitrogen (N2) and argon (Ar) were respectively introduced to dilute fuel-air mixtures in the cylinder. To this aim a 6.62 L, 6-cylinder, turbocharged, electronic controlled large-powered NG engine was subjected to a basic performance test to observe the effects of CO2, N2 and Ar on fuel economy and NOx emissions. During the test, the engine speed and torque were separately kept at 1450 r/min and 350 Nm. The results showed that the engine using Ar as dilution gas produced the highest thermal efficiency followed by N2 and then CO2 when NOx emissions were reduced to the same levels. With increasing dilution ratio (DR) of CO2 and N2, the ignition delay and combustion duration were prolonged. On the contrary, no obvious changes of combustion phase were found when using Ar as the dilution gas. THC and CO emissions increased slightly while NOx emissions showed a linear downward trend with increasing DR regardless of the dilution gas species. NOx emissions respectively decreased by 42%, 65% and 80% when using Ar, N2 and CO2 as dilution gases at 12% DR.
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Li, W., Liu, Z., Wang, Z., Li, C. et al., "Effect of CO2, N2, and Ar on Combustion and Exhaust Emissions Performance in a Stoichiometric Natural Gas Engine," SAE Technical Paper 2014-01-2693, 2014, https://doi.org/10.4271/2014-01-2693.Also In
References
- Chiodi , M. , Berner , H. , and Bargende , M. Investigation on Mixture Formation and Combustion Process in a CNG-Engine by Using a Fast Response 3D-CFD-Simulation SAE Technical Paper 2004-01-3004 2004 10.4271/2004-01-3004
- Dirrenberger , P. , Gall , H. , Bounaceur , R. et al. Measurements of Laminar Flame Velocity for Components of Natural Gas Energy Fuels 25 3875 3884 2011
- Middleton , A. , Neumann , B. , and Khatri , D. Development of Dedicated CNG Engine with Multipoint Gas Injection System SAE Technical Paper 2008-28-0014 2008 10.4271/2008-28-0014
- Atibeh , P. , Dennis , P. , Orbaiz , P. , Brear , M. et al. Lean Burn Performance of a Natural Gas Fuelled, Port Injected, Spark Ignition Engine SAE Technical Paper 2012-01-0822 2012 10.4271/2012-01-0822
- Manivannan , A. , porai , P. , Chandrasekaran , S. , and Ramprabhu , R. Lean Burn Natural Gas Spark Ignition Engine - An Overview SAE Technical Paper 2003-01-0638 2003 10.4271/2003-01-0638
- Reddy , H. , Abraham , J. A Numerical Study of Vortex Interactions with Flames Developing from Ignition Kernels in Lean Methane/air Mixtures Combustion and Flame 158 401 415 2011
- Einewall , P. , Tunestål , P. , and Johansson , B. Lean Burn Natural Gas Operation vs. Stoichiometric Operation with EGR and a Three Way Catalyst SAE Technical Paper 2005-01-0250 2005 10.4271/2005-01-0250
- Czerwinski , J. , Comte , P. , and Zimmerli , Y. Investigations of the Gas Injection System on a HD-CNG-Engine SAE Technical Paper 2003-01-0625 2003 10.4271/2003-01-0625
- Reddy , H. , Abraham , J. Ignition Kernel Development Studies Relevant to Lean-burn Natural Gas Engines Fuel 89 3262 3271 2010
- Yu , X. , Liu , Z. , Wang , Z. , Dou , H. Optimize Combustion of Compressed Natural Gas Engine by Improving In-cylinder Flows International Journal of Automotive Technology 14 539 549 2013
- Schöffler , T. , Hoffmann , K. , and Koch , T. Stoichiometric Natural Gas Combustion in a Single Cylinder SI Engine and Impact of Charge Dilution by Means of EGR SAE Technical Paper 2013-24-0113 2013 10.4271/2013-24-0113
- Hu , E. and Huang , Z. Optimization on Ignition Timing and EGR Ratio of a Spark-Ignition Engine Fuelled with Natural Gas-Hydrogen Blends SAE Technical Paper 2011-01-0918 2011 10.4271/2011-01-0918
- Abd-Alla , G.H. Using Exhaust Gas Recirculation in Internal Combustion Engines: a Review Energy Conversion and Management 43 1027 1042 2002
- Selim , M. A Study of Some Combustion Characterstics of Dual Fuel Engine Using EGR SAE Technical Paper 2003-01-0766 2003 10.4271/2003-01-0766
- Lee , M.C. , Seo , S.B. , Yoon , J. et al. Experimental Study on the Effect of N 2 , CO 2 , and Steam Dilution on the Combustion Performance of H 2 and CO Synthetic Gas in an Industrial Gas Turbine Fuel 102 431 438 2012
- Abdelaal , M.M. , Hegab , A.H. Combustion and Emission Characteristics of a Natural Gas-fueled Diesel Engine with EGR Energy Conversion and Management 64 301 312 2012
- Squaiella , L.L.F. , Martins , C.A. , Lacava , P.T. Strategies for Emission Control in Diesel Engine to Meet Euro VI Fuel 104 183 193 2013
- Pack , J. , Bae , D.S. , Cha , M.S. et al Flame Characteristics in H 2 /CO Synthetic Gas Diffusion Flames Diluted with CO 2 : Effects of Radiative Heat Loss and Mixture Composition Hydrogen Energy 33 7256 64 2008
- Konnov , A.A. , Dyakov , I.V. , Ruyck , J.D. Nitric Oxide Formation in Premixed Flames of H 2 + CO+ CO 2 and Air Proceedings of the Combustion Institute 29 2171 7 2002
- Li , T. , Izumi , H. , Shudo , T. , Ogawa , H. et al. Characterization of Low Temperature Diesel Combustion with Various Dilution Gases SAE Technical Paper 2007-01-0126 2007 10.4271/2007-01-0126
- Yoshimoto , Y. and Kinoshita , E. Influence of Intake Air Dilution with N2 or CO2 Gases on the Combustion Characteristics of a Dual Fuel Diesel Engine with Natural Gas SAE Technical Paper 2013-01-2691 2013 10.4271/2013-01-2691
- Stone , R. Introduction to Internal Combustion Engines 3rd MacMillian 1999 New York
- Marforio , K. , Lassesson , B. and Johansson , B. Influence of Flow Parameters and Spark Characteristics on the Early Flame Development in a SI-engine The 3rd Int. Symp, Diagn and Model of Combustion in ICE 1994 Yokohama
- Detuncq , B. , Williams , J. , Guernier , C. , Gou , M. et al. Performance of a Spark Ignition Engine Fueled by Natural Gas Using Oxygen Enriched Air SAE Technical Paper 881658 1988 10.4271/881658
- Patrice , S. , Fabrice , F. and Christine M. Influence of O 2 -enriched Intake Air with CO 2 Dilution on the Combustion Process of an Optically Accessible Spark-ignition Engine International Journal of Engine Research 14 1 34 44 2013
- Park , C. , Won , S. , Kim , C. , Choi , Y. Effect of Mixing CO 2 with Natural Gas-hydrogen Blends on Combustion in Heavy-duty Spark Ignition Engine Fuel 102 299 304 2012
- Korakianitis , T. , Namasivayam , A.M. and Crookes , R.J. Natural-gas Fueled Spark-ignition (SI) and Compression-ignition (CI) Engine Performance and Emissions Progress in Energy and Combustion Science 37 89 112 2011