Combustion in a supercharged biomass gas engine with micro-pilot ignition - effects of injection pressure and amount of diesel fuel

• Autorzy: Tomita E. , Fukatani N. , Kawahara N. , Maruyama K. , Komoda T.
• Języki publikacji: EN

Abstrakty

EN

It is one of the solutions to use biomass as fuel in order to realize a sustainable society and to reduce carbon dioxide emission .A single cylinder with supercharged and micro-pilot gas engine operated with four kinds of pyrolysis gas as fuel for cogeneration use. The effects of injection pressure and amount of diesel fuel on engine performance and exhaust emissions were investigated. The combustion periods of initial and main stages were determined from the analysis of mass fraction burned. The combustion process was also visualized with a colour highspeed video camera. Main results obtained in this study are as follows: When the amount of diesel fuel increased in the same injection pressure, smoke was exhausted. However, the smoke was reduced with higher injection pressure. The period of the initial combustion is almost the same even if injection pressure and amount of diesel fuel increases. Therefore, it is enough to ignite the mixture with small amount of diesel fuel. For the case with lower calorific gas, the period of main combustion was shortened owing to the combustion of diesel fuel when the amount of diesel fuel increases. When the mixture contains much hydrogen, the period of main combustion does not become small in higher injection pressure and larger amount of diesel fuel. On the other hand, when the mixture does not contain much hydrogen, the effect of diesel fuel becomes strong.

Słowa kluczowe

EN

internal combustion engine; cogeneration; pyrolysis gas; biomass gas; visualization

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2007
• Tom: Vol. 14, No. 2
• Strony: 513--520
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Tomita E.

autor

Fukatani N.

autor

Kawahara N.

autor

Maruyama K.

autor

Komoda T.

• Okayama University, Department of Mechanical Engineering Tsushima-Naka 3, Okayama 700-8530, Japan tel.[phone], fax: [phone],

Bibliografia

• [1] Shudo, T. et al., Combustion Characteristics of Pyrolysis Gas of Automobile Shredder Dust in an IC Engine, Transactions of the Japan Society of Mechanical Engineers, Series B, 67-659, pp.221-225, 2001.
• [2] Sasauchi, K., Application for Electric Generator by Pyrolysis Gasification of Biomass, Journal of the Combustion Society of Japan, 47-139, pp.31-39, 2005.
• [3] Kudo, S. et al., Gas Engine Cogeneration System fueled by Pyrolysis Gas, Clean Energy, 9, pp.32-36, 2003.
• [4] Takahashi, S. et al., Result in Service operation of 1.3MW Micro-Pilot Gas Engine, and its future development, CIMAC Congress, Paper No.146, 2004.
• [5] Hara, T. et al., Performance Demonstration of Gasification and Power Generation from Woody Biomass, Journal of the Japan Institute of Energy, 83, pp815-820, 2004.
• [6] Sridhar, G. et al., Gaseous Emissions Using Producer Gas as Fuel in Reciprocating Engines, SAE Paper, No.2005-01-1732, 2005.
• [7] Ando, Y. et al., Research and development of a low-BTU gas-driven engine for waste gasification and power generation, Energy, 30, pp.2206–2218, 2005.
• [8] Karim, G. A., Combustion in Gas Fueled Compression: Ignition Engines of the Dual Fuel Type, Transactions of ASME, Journal of Engineering for Gas Turbines and Power, 125, pp.827-836, 2003.
• [9] Tomita, E., Fukatani, N., Kawahara, N., Maruyama, K. And Komoda, T., Combustion Characteristics and Performance of Supercharged Pyrolysis Gas engine with Micro-Pilot Ignition, 25th CIMAC World Congress, Paper No.178, pp.1-10, 2007.