Effect of High Injection Pressure on Mixture Formation, Burning Process and Combustion Characteristics in Diesel Combustion
The mixture formation prior to the ignition process
plays as a key element in the diesel combustion. Parametric studies of
mixture formation and ignition process in various injection parameter
has received considerable attention in potential for reducing
emissions. Purpose of this study is to clarify the effects of injection
pressure on mixture formation and ignition especially during ignition
delay period, which have to be significantly influences throughout the
combustion process and exhaust emissions. This study investigated
the effects of injection pressure on diesel combustion fundamentally
using rapid compression machine. The detail behavior of mixture
formation during ignition delay period was investigated using the
schlieren photography system with a high speed camera. This method
can capture spray evaporation, spray interference, mixture formation
and flame development clearly with real images. Ignition process and
flame development were investigated by direct photography method
using a light sensitive high-speed color digital video camera. The
injection pressure and air motion are important variable that strongly
affect to the fuel evaporation, endothermic and prolysis process
during ignition delay. An increased injection pressure makes spray tip
penetration longer and promotes a greater amount of fuel-air mixing
occurs during ignition delay. A greater quantity of fuel prepared
during ignition delay period thus predominantly promotes more rapid
heat release.
[1] Horibe, N., Annen, T., Miyazaki, Y. and Ishiyama, T., "Heat Release
Rate and NOx Formation Process in Two-Stage Injection Diesel PCCI
Combustion in a Constant-Volume Vessel", SAE paper 2010-01-0608,
2010.
[2] Okamoto, s., shibamoto, r., kidoguchi, y. and miwa, k., "effect of high
turbulence mixing on reduction of exhaust emissions from a di diesel
engine employing egr and pilot injection", trans. of jsae, vol.38, no.2,
pp.93-99, 2007.
[3] Bruneaux, G., Verhoeven, D. and Baritaud, T., "High Pressure Diesel
Spray and Combustion Visualization in a Transparent Model Diesel
Engine", SAE Paper 1999-01-3468, 2009.
[4] Kidoguchi, Y., Fujita, Y., Umemoto, K., Miwa, K. and Omae, K., "A
Study on Multi-hole Spray Interference and Mixture Formation in Diesel
Combustion", Trans. of JSAE, Vol.39, No.3, pp.137-143, 2008.
[5] Yatsufusa, T., Kawakami, J., Kidoguchi, Y., Khalid, A., Fujita, Y. and
Omae, K., "Effects of Supercharging, Swirl Strength and Fuel Injection
Pressure on Development and Combustion of Diesel Spray", Trans. of
JSAE, Vol.40, No.3, pp.755-761, 2009.
[6] Khalid, A., Hayashi, K., Kidoguchi, Y. and Yatsufusa, T., "Effect of Air
Entrainment and Oxygen Concentration on Endothermic and Heat
Recovery Process of Diesel Ignition", SAE Paper 2011-01-0002, pp.1-
10, 2011.
[7] Noge, H., Kidoguchi, Y. and Miwa, K., "A study on NO Reduction
Caused by Thermal Cracking Hydrocarbons during Rich Diesel
Combustion", JSME International Journal, Series B, Vol.49, No.2,
pp.526-532, 2006.
[8] Kim, S.K., Wakisata, T. and Aoyagi, Y., "A Numerical Study of The
Effects of Boost Pressure and Exhaust Gas Recirculation and Exhaust
Emissions in a Diesel Engine", Int. J. Engine Res. Vol. 8, pp.147-162,
2006.
[9] Ogawa, H., Li, T., Miyamoto, N., Kido, S. and Shimizu, H.,
"Dependence of Ultra-High EGR and Low Temperature Diesel
Combustion on Fuel Injection Conditions and Compression Ratio", SAE
Paper 2006-01-3386, 2006.
[10] Ogawa, H., Li, T., Miyamoto, N., Kido, S. and Shimizu, H.,
"Dependence of Ultra-High EGR and Low Temperature Diesel
Combustion on Fuel Injection Conditions and Compression Ratio", SAE
Paper 2006-01-3386, 2006.
[11] Ishiyama, T., Miwa, K., Horikoshi, O., "A Study on Ignition Process of
Diesel Spray", COMODIA1994, , pp337-342, 1994.
[12] Khalid, A., Yatsufusa, T., Miyamoto, T., Kawakami, J. and Kidoguchi,
Y., "Analysis of Relation between Mixture Formation during Ignition
Delay Period and Burning Process in Diesel Combustion", SAE Paper
2009-32-0018, pp.1-10, 2009.
[13] Sasaki, S., Ito, T. and Iguchi, T., "Smokeless Low Temperature Diesel
Combustion Concept (First Report)-Soot-less Combustion at Near
Stoichiometry and Rich Air Fuel Ratios by a Large Amount of Cooled
EGR", Trans. of JSAE , 34-1, pp.65-70, 2003
[1] Horibe, N., Annen, T., Miyazaki, Y. and Ishiyama, T., "Heat Release
Rate and NOx Formation Process in Two-Stage Injection Diesel PCCI
Combustion in a Constant-Volume Vessel", SAE paper 2010-01-0608,
2010.
[2] Okamoto, s., shibamoto, r., kidoguchi, y. and miwa, k., "effect of high
turbulence mixing on reduction of exhaust emissions from a di diesel
engine employing egr and pilot injection", trans. of jsae, vol.38, no.2,
pp.93-99, 2007.
[3] Bruneaux, G., Verhoeven, D. and Baritaud, T., "High Pressure Diesel
Spray and Combustion Visualization in a Transparent Model Diesel
Engine", SAE Paper 1999-01-3468, 2009.
[4] Kidoguchi, Y., Fujita, Y., Umemoto, K., Miwa, K. and Omae, K., "A
Study on Multi-hole Spray Interference and Mixture Formation in Diesel
Combustion", Trans. of JSAE, Vol.39, No.3, pp.137-143, 2008.
[5] Yatsufusa, T., Kawakami, J., Kidoguchi, Y., Khalid, A., Fujita, Y. and
Omae, K., "Effects of Supercharging, Swirl Strength and Fuel Injection
Pressure on Development and Combustion of Diesel Spray", Trans. of
JSAE, Vol.40, No.3, pp.755-761, 2009.
[6] Khalid, A., Hayashi, K., Kidoguchi, Y. and Yatsufusa, T., "Effect of Air
Entrainment and Oxygen Concentration on Endothermic and Heat
Recovery Process of Diesel Ignition", SAE Paper 2011-01-0002, pp.1-
10, 2011.
[7] Noge, H., Kidoguchi, Y. and Miwa, K., "A study on NO Reduction
Caused by Thermal Cracking Hydrocarbons during Rich Diesel
Combustion", JSME International Journal, Series B, Vol.49, No.2,
pp.526-532, 2006.
[8] Kim, S.K., Wakisata, T. and Aoyagi, Y., "A Numerical Study of The
Effects of Boost Pressure and Exhaust Gas Recirculation and Exhaust
Emissions in a Diesel Engine", Int. J. Engine Res. Vol. 8, pp.147-162,
2006.
[9] Ogawa, H., Li, T., Miyamoto, N., Kido, S. and Shimizu, H.,
"Dependence of Ultra-High EGR and Low Temperature Diesel
Combustion on Fuel Injection Conditions and Compression Ratio", SAE
Paper 2006-01-3386, 2006.
[10] Ogawa, H., Li, T., Miyamoto, N., Kido, S. and Shimizu, H.,
"Dependence of Ultra-High EGR and Low Temperature Diesel
Combustion on Fuel Injection Conditions and Compression Ratio", SAE
Paper 2006-01-3386, 2006.
[11] Ishiyama, T., Miwa, K., Horikoshi, O., "A Study on Ignition Process of
Diesel Spray", COMODIA1994, , pp337-342, 1994.
[12] Khalid, A., Yatsufusa, T., Miyamoto, T., Kawakami, J. and Kidoguchi,
Y., "Analysis of Relation between Mixture Formation during Ignition
Delay Period and Burning Process in Diesel Combustion", SAE Paper
2009-32-0018, pp.1-10, 2009.
[13] Sasaki, S., Ito, T. and Iguchi, T., "Smokeless Low Temperature Diesel
Combustion Concept (First Report)-Soot-less Combustion at Near
Stoichiometry and Rich Air Fuel Ratios by a Large Amount of Cooled
EGR", Trans. of JSAE , 34-1, pp.65-70, 2003
@article{"International Journal of Mechanical, Industrial and Aerospace Sciences:55773", author = "Amir Khalid and B. Manshoor", title = "Effect of High Injection Pressure on Mixture Formation, Burning Process and Combustion Characteristics in Diesel Combustion", abstract = "The mixture formation prior to the ignition process
plays as a key element in the diesel combustion. Parametric studies of
mixture formation and ignition process in various injection parameter
has received considerable attention in potential for reducing
emissions. Purpose of this study is to clarify the effects of injection
pressure on mixture formation and ignition especially during ignition
delay period, which have to be significantly influences throughout the
combustion process and exhaust emissions. This study investigated
the effects of injection pressure on diesel combustion fundamentally
using rapid compression machine. The detail behavior of mixture
formation during ignition delay period was investigated using the
schlieren photography system with a high speed camera. This method
can capture spray evaporation, spray interference, mixture formation
and flame development clearly with real images. Ignition process and
flame development were investigated by direct photography method
using a light sensitive high-speed color digital video camera. The
injection pressure and air motion are important variable that strongly
affect to the fuel evaporation, endothermic and prolysis process
during ignition delay. An increased injection pressure makes spray tip
penetration longer and promotes a greater amount of fuel-air mixing
occurs during ignition delay. A greater quantity of fuel prepared
during ignition delay period thus predominantly promotes more rapid
heat release.", keywords = "Mixture Formation, Diesel Combustion, Ignition
Process, Spray, Rapid Compression Machine.", volume = "6", number = "11", pages = "2414-5", }