This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Effect of Fluid Flow on Combustion Process of Natural Gas in a Rapid Compression Combustor
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 01, 1996 by SAE International in United States
Annotation ability available
For the final goal of developing the natural gas fueled spark ignition engine with high thermal efficiency and low pollutant emission, the effects of the fluid flow inside a combustion chamber on the combustion process of a homogeneous lean mixture of natural gas and air were examined using a rapid compression combustor. The rapid compression combustor was designed to simulate the combustion process in a spark ignition engine involving the rapid compression of a mixture and the heal release during flame propagation. The main advantage of using this combustor is that experiments can be made under the idealized and well-controlled conditions. The time history of pressure in the combustion cylinder was measured with a pressure transducer.
The fluid flow in the combustion cylinder was varied using two kinds of experimental technique. First, compression ratio, piston speed and the configuration of the piston head were changed. These changes attain different flow fields formed by piston motion. The results showed that the configuration of the piston head affected the combustion duration and that the other factors had weak effects on it. Secondly, the mixture of natural gas and air was injected into the combustion cylinder before the compression stroke, and the direction of the injection and the time interval between the end of mixture charge and the start of compression stroke were changed. In this test, the location of spark ignition was also changed and the flame propagation was photographically observed. Moreover, the two-dimensional velocity distribution of the swirl flow was measured with particle image velocimetry. As expected, the combustion duration decreased with increases in the mean velocity and the turbulence intensity of the fluid flow. If the intense swirl flow existed in the combustion chamber, the combustion duration was minimized with spark ignition at the eccentric location.
CitationSegawa, D., Kadota, T., Mizobuchi, T., Kataoka, K. et al., "Effect of Fluid Flow on Combustion Process of Natural Gas in a Rapid Compression Combustor," SAE Technical Paper 961937, 1996, https://doi.org/10.4271/961937.
- Narushima, T. “What is Natural Gas?” Internal Combustion Engine 399 9 14 1992
- Amann, C.A. “The Passenger Car and the Greenhouse Effect,” SAE Paper No. 902099 1990
- Pischinger, F. Wolters, P. “Investigations on the Combustion of Two-Stroke Gas Engines with Charge Stratification,” International Gas Research Conference 1266 1275 1986
- Raine, R. R. Stephenson, J. Elder, S. T. “Characteristics of Diesel Engines Converted to Spark-Ignition Operation Fueled with Natural Gas,” SAE Paper No. 880149
- Kingston Jones, M. G. Heaton, D. M. “Nebula Combustion System for Lean-Burn Spark Ignited Engines,” SAE Paper No. 890211
- Klimstra, J. “Performance of Lean-Burn Natural-Gas-Fueled Engines on Specific Fuel Consumption, Power Capacity and Emissions,” SAE Paper No. 901495
- Evans, R. L. “Combustion Chamber Design for a Lean-Burn SI Engine,” SAE Paper No. 921545
- Fleming, R. D. O'Neal, G. B. “Potential for Improving the Efficiency of a Spark Ignition Engine for Natural Gas Fuel,” SAE Paper No. 852073
- Charlton, S. J. Jager, D. J. Wilson, M. Shooshtarian, A. “Computer Modelling and Experimental Investigation of a Lean Burn Natural Gas Engine,” SAE Paper No. 900228
- Jääskeläinen, H. E. Wallece, J. S. “Performance and Emissions of a Natural Gas-Fueled 16 Valve DOHC Four-Cylinder Engine,” SAE Paper No. 930380
- Kataoka, K. Go, I. Kadota, T. Fukatani, N. “Effect of Fuel Characteristics on the Combustion Process of Homogeneous Mixtures in a Closed Vessel,” Proceedings of the 2nd JSME-KSME Thermal Engineering Conference 2 129 134 1992
- Kataoka, K. Hirooka, S. Fukatani, N. Kadota, T. “Combustion Process of Gaseous Fuels in a Closed Vessel,” JSAE Review 15 235 237 1994
- Tsue, M. Kakutani, H. Kashiwaya, H. Kadota, T. “A Fundamental Study on Mixture Formation Process in the Combustion Chamber of a Gas Engine,” The Third International Symposium on COMODIA 95 100 1994
- Atsumi, Y. Kataoka, K. Segawa, D. Kadota, T. Fukatani, N. “Effect of the Induced Mixture Flow on the Characteristics of Combustion and Exhaust Emission of a Natural gas Engine,” Prep. of JSME 954-2 199 201 1995
- Taylor, C. F. The Internal-Combustion Engine in Theory and Practice Volume 1 112 The MIT Press 1977
- Taylor, C. F. The Internal-Combustion Engine in Theory and Practice Volume 2 31 The MIT Press 1977
- Ryan, T. W. Lestz, S. S. “The Laminar Burning Velocity of Isooctane, N-Heptane, Methanol, Methane, and Propane at Elevated Temperatures and Pressures in the Presence of a Diluent,” SAE Paper No. 800103
- Bradley, D. Mitcheson, A. “Mathematical Solution for Explosions in Spherical Vessels” Combustion and Flame 26 201 217 1976
- Akindele, O. O. Bradley, D. Mak, P. W. McMahon, M. “Spark Ignition of Turbulent Gases” Combustion and Flame 47 129 155 1982
- Bianco, Y. Cheng, W. K. Heywood, J. B. “The Effects of Initial Flame Kernel Conditions on Flame Development in SI Engine” SAE Paper No. 912402