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TECHNICAL PAPERS: Spark Ignition Engine Combustion

Knock Rating of Gaseous Fuels

[+] Author and Article Information
A. A. Attar, G. A. Karim

Department of Mechanical and Manufacturing Engineering, University of Calgary, Calgary T2N 1N4, Canada

J. Eng. Gas Turbines Power 125(2), 500-504 (Apr 29, 2003) (5 pages) doi:10.1115/1.1560707 History: Received October 01, 1998; Revised September 01, 2002; Online April 29, 2003
Copyright © 2003 by ASME
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References

Ryan,  T. W., Callahan,  T. J., and King,  S. R., 1993, “Engine Knock Rating of Natural Gases-Methane Number,” ASME J. Eng. Gas Turbines Power, 115, pp. 922–930.
Leiker, M., Christoph, K., Rankl, M., Cartellion, W., and Pfiefer, U., 1973, “Evaluation of Anti-Knock Property of Gaseous Fuels by Means of the Methane Number and Its Practical Application to Gas Engines,” 72-DGP-4 , ASME, New York, pp. 1–15.
Schaub,  F. S., and Hubbard,  R. L., 1985, “A Procedure for Calculating Fuel Gas Blend Knock Rating for Large-Bore Gas Engines and Predicting Engine Operation,” Trans. ASME, 107, pp. 922–930.
Klimstra, J., Heranaez, A. B., Gerard, A., Karti, B., Quinto, V., Roberts, G., and Schollmeyer, H., 1999, “Classification Methods for Knock Resistance of Gaseous Fuels,” ASME Paper No. 99-ICE-214.
Kubish, J., King, S. R., and Liss, W. E., 1992, “Effect of Gas Composition on the Octane Number of Gaseous fuels,” SAE Paper No. 922359.
Khalil,  E. B., and Karim,  G. A., 2002, “A Kinetic Investigation of the Role of Changes in the Composition of Natural Gas in Engine Applications,” ASME J. Eng. Gas Turbines Power, 124, pp. 404–411.
Annand,  W. J. D., and Sulaiman,  S. J., 1970, “Knock Limits and Performance of Some Gaseous Fuels in a Supercharged Spark Ignition Engine,” Proc. Inst. Mech. Eng., 185-62/71, pp. 857–867.
Karim,  G. A., and Klat,  S. R., 1966, “Knock and Autoignition Characteristics of Some Gaseous Fuels and Their Mixtures,” J. Inst. Fuel, 39, pp. 109–119.
Alizadeh Attar, A., 1997, “Optimization and Knock Modeling of a Gas Fueled Spark Ignition Engine,” Ph.D. thesis, Mechanical Engineering, University of Calgary.
Bade Shrestha, O. M., and Karim, G. A., 2001, “An Experimental and Analytical Examination of the Combustion Period for Gas-Fuelled Spark Ignition Engine Applications,” Inst. Mech. Eng. J. Power Energy, 215 , pp. 63–74.

Figures

Grahic Jump Location
Variation of the KLST with volumetric concentration of additive to methane at 900 rpm, CR=8.5:1,φ=0.80, 87 kPa, and 27°C
Grahic Jump Location
Variation of the KLST with volumetric concentration of additive to methane at 900 rpm, CR=11:1,φ=0.80, 87 kPa and 27°C
Grahic Jump Location
Variation of the KLST with vol. concentration of additive to methane at 900 rpm, φ=1.0,CR=8.5:1, 87 kPa and 27°C
Grahic Jump Location
Variation of the KLST with volumetric concentration of additive to methane at 900 rpm, φ=1.0,CR=8.5:1, 87 kPa and 27°C
Grahic Jump Location
Variation of the calculated combustion duration for mixtures of hydrogen and methane at 900 rpm, 20°BTDC, CR=8.5:1,φ=1.0, 87 kPa and 27°C. Our own experimental points are shown
Grahic Jump Location
Variation of effective ploytropic index with volumetric concentration of additives in binary mixtures with methane at 900 rpm, CR=8.5:1, 87 kPa, and 27°C
Grahic Jump Location
Variation of the modified compression ratio, based on Eq. (1) with volume concentration of additive to methane at 900 rpm, φ=1.0,CR=8.5:1, and 11:1
Grahic Jump Location
Variation of the KLST with volume concentration of additive to methane with modified compression ratio at 900 rpm, φ=1.0,CR=8.5:1, 87 kPa, and 27°C
Grahic Jump Location
Variations of the KLST with volume concentration of additive to methane with modified compression ratio at 900 rpm, φ=1.0,CR=11:1, 87 kPa, and 27°C
Grahic Jump Location
Variation of the knock limited compression ratio with volume concentration of additive to methane at 900 rpm, 15 BTDC, φ=0.80, 87 kPa, and 27°C
Grahic Jump Location
Variation of the knock limited compression ratio with volumetric concentration of additive to methane at 900 rpm, 15°BTDC, φ=1.0, 87 kPa, 27°C

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