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Impact of Ethane Enrichment on Diesel-Methane Dual-Fuel Combustion
Technical Paper
2020-01-0305
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Over the past few years, the growing concerns about global warming and efforts to reduce engine-out emissions have made the dual-fuel (DF) engines more popular in marine and power industries. The use of natural gas as an alternative fuel in DF engines has both the environmental and economic advantages over the conventional diesel combustion. However, the misfire phenomenon at lean conditions limits the operating range of DF combustion and causes emissions of unburned hydrocarbon (UHC) and unburned methane (methane-slip) in the environment. The greenhouse effect of methane is considered 28 times greater than CO2 over a 100-year perspective, which raises concerns for the governments and marine engine manufacturers. In efforts to reduce the UHC and methane-slip from DF engines, this study discusses ethane enrichment of diesel-methane DF combustion in a full-metal single-cylinder research engine under lean condition (λGFB = ~2.0) while keeping the total-fuel energy rather constant. The 99.9% pure methane is enriched with ethane in such a way that three gaseous-fuel blends of 0-20% ethane concentration could be achieved. The substitution rate of gaseous fuel blend (methane + ethane) is 97%, which is ignited by a small pilot diesel (3% of total energy). The conditions at top-dead-center (TDC) are kept constant in all experiments i.e. motored peak pressure of 60 bar and TTDC = 835 K. Moreover, engine speed (ω) of 1500 rpm is utilized during the experiments to explore the effect of ethane enrichment on engine-out emissions and combustion characteristics. The results show that adding ethane into the gaseous-fuel blend decreases the ignition delay time (IDT) and improves overall combustion that leads to a significant decrease in UHC and methane-slip. Furthermore, coefficient of variability of IMEP (COVIMEP) decreases about 53% by enriching pure methane with 20% ethane.
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Ahmad, Z., Kaario, O., Cheng, Q., and Larmi, M., "Impact of Ethane Enrichment on Diesel-Methane Dual-Fuel Combustion," SAE Technical Paper 2020-01-0305, 2020, https://doi.org/10.4271/2020-01-0305.Data Sets - Support Documents
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References
- Abdel-Rahman , A.A. On the Emissions from Internal-Combustion Engines: A Review International Journal of Energy Research 22 6 483 513 1998 10.1002/(SICI)1099-114X(199805)22:6<483::AID-ER377>3.0.CO;2-Z
- Zheng , X. , Streimikiene , D. , Balezentis , T. , Mardani , A. et al. A Review of Greenhouse Gas Emission Profiles, Dynamics, and Climate Change Mitigation Efforts across the Key Climate Change Players Journal of Cleaner Production 2019 10.1016/j.jclepro.2019.06.140
- Corbett , J.J. and Fischbeck , P. Emissions from Ships Science 278 5339 823 824 1997 10.1126/science.278.5339.823
- Adamchak , F. and Adede , A. LNG as Marine Fuel 17th International Conference 2013
- Wang , S. and Notteboom , T. The Adoption of Liquefied Natural Gas as a Ship Fuel: A Systematic Review of Perspectives and Challenges Transport Reviews 34 6 749 774 2014 10.1080/01441647.2014.981884
- Kakaee , A.H. , Paykani , A. , and Ghajar , M. The Influence of Fuel Composition on the Combustion and Emission Characteristics of Natural Gas Fueled Engines Renewable and Sustainable Energy Reviews 38 64 78 2014 10.1016/j.rser.2014.05.080
- Karim , G.A. Dual-Fuel Diesel Engines CRC Press 2015
- Ahmad , Z. , Janak , A. , Olli , R. , Ossi , K. et al. An Optical Characterization of Dual-Fuel Combustion in a Heavy-Duty Diesel Engine SAE Technical Paper 2018-01-0252 2018 https://doi.org/10.4271/2018-01-0252
- Ahmad , Z. , Kaario , O. , Qiang , C. , Vuorinen , V. et al. A Parametric Investigation of Diesel/Methane Dual-Fuel Combustion Progression/Stages in a Heavy-Duty Optical Engine Applied Energy 251 113191 2019 10.1016/j.apenergy.2019.04.187
- Kahila , H. , Kaario , O. , Ahmad , Z. , Masouleh , M.G. et al. A Large-Eddy Simulation Study on the Influence of Diesel Pilot Spray Quantity on Methane-Air Flame Initiation Combustion and Flame 206 506 521 2019 10.1016/j.combustflame.2019.05.025
- Mattson , J. , Langness , C. , and Depcik , C. An Analysis of Dual-Fuel Combustion of Diesel with Compressed Natural gas in a Single-Cylinder Engine SAE Technical Paper 2018-01-0248 2018 https://doi.org/10.4271/2018-01-0248
- Pasunurthi , S. , Jupudi , R. , Wijeyakulasuriya , S. , Gubba , S. et al. Cycle to Cycle Variation Study in a Dual Fuel Operated Engine SAE Technical Paper 2017-01-0772 2017 https://doi.org/10.4271/2017-01-0772
- Pettinen , R. , Kaario , O. , and Larmi , M. Dual-Fuel Combustion Characterization on Lean Conditions and High Loads SAE Technical Paper 2017-01-0759 2017 https://doi.org/10.4271/2017-01-0759
- Masouleh , M.G. , Wehrfritz , A. , Kaario , O. , Kahila , H. et al. Comparative Study on Chemical Kinetic Schemes for Dual-Fuel Combustion of N-Dodecane/Methane Blends Fuel 191 62 76 2017 10.1016/j.fuel.2016.10.114
- Ly , H. December 2002
- Kayadelen , H.K. Effect of Natural Gas Components on Its Flame Temperature, Equilibrium Combustion Products and Thermodynamic Properties Journal of Natural Gas Science and Engineering 45 2017 456 473 2017 10.1016/j.jngse.2017.05.023
- Naber , J.D. , Siebers , D.L. , Di Julio , S.S. , and Westbrook , C.K. Effects of Natural Gas Composition on Ignition Delay under Diesel Conditions Combustion and Flame 99 2 192 200 1994 10.1016/0010-2180(94)90122-8
- Huang , J. and Bushe , W.K. Experimental and Kinetic Study of Autoignition in Methane/Ethane/Air and Methane/Propane/Air Mixtures under Engine-Relevant Conditions Combustion and Flame 144 1-2 74 88 2006 10.1016/j.combustflame.2005.06.013
- Wu , Z. , Rutland , C.J. , and Han , Z. Numerical Evaluation of the Effect of Methane Number on Natural Gas and Diesel Dual-Fuel Combustion International Journal of Engine Research 20 4 405 423 2019 10.1177/1468087418758114
- Mikulski , M. and Wierzbicki , S. Numerical Investigation of the Impact of Gas Composition on the Combustion Process in a Dual-Fuel Compression-Ignition Engine Journal of Natural Gas Science and Engineering 31 525 537 10.1016/j.jngse.2016.03.074
- Amirante , R. , Distaso , E. , Tamburrano , P. , and Reitz , R.D. Laminar Flame Speed Correlations for Methane, Ethane, Propane and Their Mixtures, and Natural Gas and Gasoline for Spark-Ignition Engine Simulations International Journal of Engine Research 18 9 951 970 2017 10.1177/1468087417720018
- Sahoo , B.B. , Sahoo , N. , and Saha , U.K. Effect of Engine Parameters and Type of Gaseous Fuel on the Performance of Dual-Fuel Gas Diesel Engines - A Critical Review Renewable and Sustainable Energy Reviews 13 6-7 1151 1184 2009 10.1016/j.rser.2008.08.003
- Papagiannakis , R.G. and Hountalas , D.T. Combustion and Exhaust Emission Characteristics of a Dual Fuel Compression Ignition Engine Operated with Pilot Diesel Fuel and Natural Gas Energy conversion and management 45 18-19 2971 2987 2004 10.1016/j.enconman.2004.01.013
- Cheng , Q. , Ahmad , Z. , Kaario , O. , and Martti , L. Cycle-to-Cycle Variations of Dual-Fuel Combustion in an Optically Accessible Engine Applied Energy 254 113611 2019 10.1016/j.apenergy.2019.113611