Experimental investigation of the combustion of vegetable oils in diesel engine at low engine loads

• Autorzy: Błažek J. , Vojtišek M.
• Języki publikacji: EN

Abstrakty

EN

Vegetable oils are being increasingly used as fuel in diesel engines in passenger vehicles, with various results. One of the associated problems is excessive emissions of organic compounds at very low engine loads. Aside from an undesirable increase in emissions, such compounds also contribute to the formation of deposits in the engine and in the catalytic reactor. In this study, a typical turbodiesel engine, adapted for operation on vegetable oils, was fitted with fast-response in-cylinder pressure measurement system. The engine was operated on an engine dynamometer at low loads typical for urban driving at several coolant and fuel temperatures. Results will be presented and discussed. Engine and rapeseed oil fuelling system setup, comparison of combustion timing of diesel fuel and rapeseed oil, indicated in-cylinder pressure for diesel fuel and rapeseed oil for different speeds and loads, indicated in-cylinder pressure at original and modified injection timing, comparison of nox and CO2 concentrations at original injection timing, emissions from rapeseed oil relative to diesel fuel at different speeds and loads, effect of injection timing optimization on peak indicated pressure, effect of injection timing optimization on nox and CO concentrations, Brake-specific fuel consumption, are presented in the paper.

Słowa kluczowe

EN

vegetable oils; diesel fuels; in-cylinderpressure measurement system; combustion engines; emissions

• 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. 3
• Strony: 61--72
• Opis fizyczny: Bibliogr. 17 poz., rys.

Twórcy

autor

Błažek J.

autor

Vojtišek M.

• Technical University of Liberec Department of Vehicles and Engines Hdlkova 6, 461 17 Liberec, Czech Republic tel[phone], 353 148, fax: [phone],

Bibliografia

• [1] Ammerer, A., Rathbauer, J., Worgetter, M., Rapeseed Oil as Fuel for Farm Tractors, Prepared by BLT Wieselburg, Austria, for IEA Bioenergy Task 39, Subtask “Biodiesel”, 2003.
• [2] Calais, P., Waste Vegetable Oil as a Diesel Replacement Fuel, Environmental Science, Murdoch University, Perth, Australia, and A.R. (Tony) Clark, Western Australian Renewable Fuels Association Inc., online at http://www.shortcircuit.com.au/warfa/paper/paper.htm.
• [3] Carven, J., GreaseCar, Easthampton, Massachusetts, USA, Personal communications, 2005-2007.
• [4] Coelho, S. T., et al., The Use of Palm Oil for Electricity Generation in the Amazon Region, RIO 5 - World Climate & Energy Event, , Rio de Janeiro, Brazil, 15-17 February, 2005.
• [5] Elsbett, G., Bialkowsky, M., Engines running on pure vegetable oil as regrowing fuel: History, Development, Experience, Chances, Shanghai International Symposium on I.C.Engine, 2003.
• [6] Goering, C. E., Schwab, A. W., Daugherty, M. J., Pryde, E. H., Heakin, A. J., Trans. ASAE 1982, 25, 1472-1477 & 1483, as quoted in http://journeytoforever.org/biodiesel_yield2.html.
• [7] Hawkins, C. S., Fuls, J., Hugo, F. J. C., Engine Durability Tests with Sunflower Oil in an Indirect Injection Diesel Engine, SAE Paper 831357 Society of Automotive Engineers, Warrendale, PA, USA, 1983.
• [8] Jones, S., Peterson, C. L., Using Unmodified Vegetable Oils as a Diesel Fuel Extender – A Literature Review, University of Idaho, Moscow, Idaho, USA, 2002.
• [9] Knothe, G., Historical Perspectives on Vegetable Oil-Based Fuels, INFORM – International News on Fats, Oils and Related Materials 12, no. 11 1103, 2001.
• [10] Lance, D., Andersson, J., Emissions Performance of Pure Vegetable Oil in Two European Light Duty Vehicles, Society of Automotive Engineers, Warrensdale, Pennsylvania, USA, paper no. 2004-01-1881, 2004.
• [11] Lauer, P., New findings on PM emission and composition for medium speed 4-stroke marine Diesel engines operating on Bio-Fuel, Proceedings of the 10th ETH Conference on Combustion Generated Nanoparticles, Zurich, Switzerland, August 2006.
• [12] Nwafor, O. M. I., Emission characteristics of diesel engine running on vegetable oil with elevated fuel inlet temperature, Biomass and Bioenergy, no 27, 507–511, 2004.
• [13] Reddy, J. N., Ramesh, A., Parametric studies for improving the performance of a Jatropha oil-fuelled compression ignition engine, Renewable Energy no 31 1994–2016, 2006.
• [14] Vojtisek-Lom, M., Wilson, P. J., On the Significance of Engine Idling,. Proceedings of the 14th CRC On-road Vehicle Emissions workshop, San Diego, CA, March, 2003.
• [15] Vojtisek-Lom, M., Wilson, P. J., Real-world Emissions From Private Diesel Passenger Vehicles Running On Unrefined Waste Vegetable Oil,. Proceedings of the 14th CRC Onroad Vehicle Emissions workshop, San Diego, CA, March 29-31, 2004.
• [16] Comments on Rapeseed Oil standards by Elsbett Technology. Posted on http://journeytoforever.org/biodiesel_svostd.html#vegstd as of June 2007.
• [17] Use of Raw Vegetable Oil or Animal Fats in Diesel Engines. Engine Manufacturers Association, Chicago, Illinois, March 2006.