Combustion Analysis of a Spark-Ignition Engine Fueled on Methane-Hydrogen Blend with Variable Equivalence Ratio Using a Computational Fluid Dynamics Code
Publication: Journal of Energy Engineering
Volume 142, Issue 2
Abstract
The main scope of the present work is to examine the combustion processes inside the cylinder of a spark-ignition (SI) engine fueled with a methane-hydrogen blend with variable equivalence ratio. This combustion analysis is conducted with a computational fluid dynamics code, which is an in-house code and has been initially developed for simulating hydrogen-fueled SI engines. Lately, its combustion model has been extended with the introduction of methane fuel and various routes are used for the calculation of the nitric oxide (NO) emissions. The first task is to conduct the validation of this code, focusing on this newly developed combustion model. This validation is based on both performance and emissions comparison with experimental data, in order to gain a complete view of the code capabilities. The available experimental data are from a two-cylinder SI engine with complete sets of measured values. For the current study, it was decided to focus on the effect of the equivalence ratio (from 0.7 up to 1), keeping the hydrogen content constant (30% by volume). This comparison revealed that a good match exists for both performance and emissions, showing that the code can be applied for detailed investigation of such combustion processes. A detailed combustion analysis is then conducted, by further processing the results of the numerical code, providing insight of the flame front propagation and NO emissions production inside the engine cylinder.
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Acknowledgments
Dr. G.M. Kosmadakis wishes to thank the Greek State Scholarships Foundation for granting him an “IKY Fellowship of excellence for postgraduate studies in Greece—Siemens Program, years 2013–2015.”
References
Agathou, M. S., and Kyritsis, D. C. (2014). “Experimental study of steady, quasi cone-jet electrostatic sprays of bio-butanol for engine applications.” J. Energy Eng., A4014008.
Akansu, S. O., Kahraman, N., and Ceper, B. (2007). “Experimental study on a spark ignition engine fuelled by methane-hydrogen mixtures.” Int. J. Hydrogen Energy, 32(17), 4279–4284.
Aliramezani, M., Chitsaz, I., and Mozafari, A. A. (2013). “Thermodynamic modeling of partially stratified charge engine characteristics for hydrogen-methane blends at ultra-lean conditions.” Int. J. Hydrogen Energy, 38(25), 10640–10647.
Arroyo, J., Moreno, F., Muñoz, M., Monné, C., and Bernal, N. (2014). “Combustion behavior of a spark ignition engine fueled with synthetic gases derived from biogas.” Fuel, 117, 50–58.
Debnath, B., Bora, B., Sahoo, N., and Saha, U. (2014). “Influence of emulsified palm biodiesel as pilot fuel in a biogas run duel fuel diesel engine.” J. Energy Eng., A4014005.
Demuynck, J., Raes, N., Zuliani, M., De Paepe, M., Sierens, R., and Verhelst, S. (2009). “Local heat flux measurements in a hydrogen and methane spark ignition engine with a thermopile sensor.” Int. J. Hydrogen Energy, 34(24), 9857–9868.
Dimopoulos, P., Rechsteiner, C., Soltic, P., Laemmle, C., and Boulouchos, K. (2007). “Increase of passenger car engine efficiency with low engine-out emissions using hydrogen-natural gas mixtures: A thermodynamic analysis.” Int. J. Hydrogen Energy, 32(14), 3073–3083.
Fan, L., and Reitz, R. D. (2000). “Development of an ignition and combustion model for spark-ignition engines.” Trans. SAE J. Engines, 109, 1977–1989.
Gerke, U., Steurs, K., Rebecchi, P., and Boulouchos, K. (2010). “Derivation of burning velocities of premixed hydrogen/air flames at engine-relevant conditions using a single-cylinder compression machine with optical access.” Int. J. Hydrogen Energy, 35(6), 2566–2577.
Giakoumis, E. G., Rakopoulos, C. D., and Rakopoulos, D. C. (2014). “An assessment of NOx emissions during transient diesel engine operation with biodiesel blends.” J. Energy Eng., A4014004.
Kosmadakis, G. M., and Rakopoulos, C. D. (2014). “Computational fluid dynamics investigation of alternative nitric oxide emission mechanisms in a hydrogen-fueled spark-ignition engine.” Int. J. Hydrogen Energy, 39(22), 11774–11791.
Kosmadakis, G. M., and Rakopoulos, C. D. (2015). “Computational fluid dynamics study of alternative nitric-oxide emission mechanisms in a spark-ignition engine fueled with hydrogen and operating in a wide range of exhaust gas recirculation rates for load control.” J. Energy Eng., C4014008.
Kosmadakis, G. M., Rakopoulos, C. D., Demuynck, J., De Paepe, M., and Verhelst, S. (2012). “CFD modeling and experimental study of combustion and nitric oxide emissions in hydrogen-fueled spark-ignition engine operating in a very wide range of EGR rates.” Int. J. Hydrogen Energy, 37(14), 10917–10934.
Labeckas, G., Slavinskas, S., and Mazeika, M. (2014). “The effect of ethanol-diesel-biodiesel blends on combustion, performance and emissions of a direct injection diesel engine.” Energy Convers. Manage., 79, 698–720.
Lipatnikov, A. N., and Chomiak, J. (1997). “A simple model of unsteady turbulent flame propagation.” Trans. SAE J. Engines, 106, 2441–2452.
Ma, F., Liu, H., Wang, Y., Li, Y., Wang, J., and Zhao, S. (2008). “Combustion and emission characteristics of a port-injection HCNG engine under various ignition timings.” Int. J. Hydrogen Energy, 33(2), 816–822.
Mitsingas, C. M., and Kyritsis, D. C. (2014). “Comparative evaluation of extinction through strain among three alcoholic butanol isomers in non-premixed counterflow flames.” J. Energy Eng., A4014006.
Moreno, F., Muñoz, M., Arroyo, J., Magén, O., Monné, C., and Suelves, I. (2012). “Efficiency and emissions in a vehicle spark ignition engine fueled with hydrogen and methane blends.” Int. J. Hydrogen Energy, 37(15), 11495–11503.
National Instruments. (2003). LabVIEW measurements manual, Austin, TX.
Ouimette, P., and Seers, P. (2009). “Numerical comparison of premixed laminar flame velocity of methane and wood syngas.” Fuel, 88(3), 528–533.
Papagiannakis, R. G., and Zannis, T. C. (2014). “Effect of wood-gas composition on performance and exhaust emission characteristics of a large spark-ignition engine.” J. Energy Eng., A4013002.
Rakopoulos, C. D., and Giakoumis, E. G. (2009). Diesel engine transient operation—Principles of operation and simulation analysis, Springer, London.
Rakopoulos, C. D., Kosmadakis, G. M., Demuynck, J., De Paepe, M., and Verhelst, S. (2011a). “A combined experimental and numerical study of thermal processes, performance and nitric oxide emissions in a hydrogen-fueled spark-ignition engine.” Int. J. Hydrogen Energy, 36(8), 5163–5180.
Rakopoulos, C. D., Kosmadakis, G. M., Dimaratos, A. M., and Pariotis, E. G. (2011b). “Investigating the effect of crevice flow on internal combustion engines using a new simple crevice model implemented in a CFD code.” Appl. Energy, 88(1), 111–126.
Rakopoulos, C. D., Kosmadakis, G. M., and Pariotis, E. G. (2009). “Evaluation of a new computational fluid dynamics model for internal combustion engines using hydrogen under motoring conditions.” Energy, 34(12), 2158–2166.
Rakopoulos, C. D., Kosmadakis, G. M., and Pariotis, E. G. (2010). “Evaluation of a combustion model for the simulation of hydrogen spark-ignition engines using a CFD code.” Int. J. Hydrogen Energy, 35(22), 12545–12560.
Rakopoulos, C. D., and Kyritsis, D. C. (2006). “Hydrogen enrichment effects on the second law analysis of natural and landfill gas combustion in engine cylinders.” Int. J. Hydrogen Energy, 31(10), 1384–1393.
Rakopoulos, C. D., and Michos, C. N. (2009). “Generation of combustion irreversibilities in a spark ignition engine under biogas-hydrogen mixtures fueling.” Int. J. Hydrogen Energy, 34(10), 4422–4437.
Rakopoulos, C. D., Scott, M. A., Kyritsis, D. C., and Giakoumis, E. G. (2008). “Availability analysis of hydrogen/natural gas blends combustion in internal combustion engines.” Energy, 33(2), 248–255.
Rakopoulos, D. C. (2012). “Heat release analysis of combustion in heavy-duty turbocharged diesel engine operating on blends of diesel fuel with cottonseed or sunflower oils and their bio-diesel.” Fuel, 96, 524–534.
Rakopoulos, D. C. (2013). “Combustion and emissions of cottonseed oil and its bio-diesel in blends with either n-butanol or diethyl ether in HSDI diesel engine.” Fuel, 105, 603–613.
Rakopoulos, D. C. (2015). “Comparison of combustion, performance, and emissions of HSDI diesel engine operating on blends of diesel fuel with ethanol, n-butanol, or butanol isomer ether DEE.” J. Energy Eng., C4014001.
Rakopoulos, D. C., Rakopoulos, C. D., Giakoumis, E. G., and Dimaratos, A. M. (2012). “Characteristics of performance and emissions in high-speed direct injection diesel engine fueled with diethyl ether/diesel fuel blends.” Energy, 43(1), 214–224.
Rakopoulos, D. C., Rakopoulos, C. D., Giakoumis, E. G., Dimaratos, A. M., and Kakaras, E. C. (2014). “Comparative evaluation of two straight vegetable oils and their methyl ester bio-diesels as fuel extenders in HDDI diesel engine: Performance and emissions.” J. Energy Eng., A4014001.
Verhelst, S. (2014). “Recent progress in the use of hydrogen as a fuel for internal combustion engines.” Int. J. Hydrogen Energy, 39(2), 1071–1085.
Wang, S., Ji, C., and Zhang, B. (2010). “Effect of hydrogen addition on combustion and emissions performance of a spark-ignited ethanol engine at idle and stoichiometric conditions.” Int. J. Hydrogen Energy, 35(17), 9205–9213.
Zimont, V. L. (2000). “Gas premixed combustion at high turbulence. Turbulent flame closure combustion model.” Exp. Therm. Fluid Sci., 21(1–3), 179–186.
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Published In
Journal of Energy Engineering
Volume 142 • Issue 2 • June 2016
Copyright
© 2015 American Society of Civil Engineers.
History
Received: Apr 9, 2015
Accepted: Jun 24, 2015
Published online: Aug 14, 2015
Discussion open until: Jan 14, 2016
Published in print: Jun 1, 2016
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