Comparison of indicator and heat release graphs for vw 1.9 tdi engine supplied diesel fuel and rapeseed methyl esters (RME)

• Autorzy: Cisek J.
• Języki publikacji: EN

Abstrakty

EN

The results of investigation of 1,9 TDI engine (285 Nm, 85 kW, type AJM without any modification) equipped with injection units supplied conventional diesel fuel (ON) or B100 fuel (RME) have been presented in article. Investigations have been realized at the engine speed of 2000 rpm and variable load within the range of 0 to 275 Nm. The pressure, temperature and heat release velocity runs have been subjected to analysis. Particular attention has been paid to the release of the heat used for the effective work and internal energy increase of the working medium (enthalpy) during combustion inside the engine cylinder versus the crank angle for both investigated fuels. It was found among the others that mentioned fuels differ in the heat release, heat velocity and the maximal combustion temperature, which for the B100 fuel is bigger than for the conventional diesel fuel. Bigger combustion dynamics of tested biofuel (compared with standard diesel fuel) results higher concentrations of Nitrogen Oxides NOx in exhaust gases. The easiest way is of course the use of the later start of fuel injection biofuels and/or increase the exhaust gas recirculation EGR. These treatments, however, result in a worsening of the energy performance of the engine. It was concluded also that the combustion of RME works properly at higher engine loads. Then reduce the negative difference between the combustion of biofuel (RME) and standard Diesel fuel.

Słowa kluczowe

EN

RME; FAME; indicator diagrams; heat realise; diesel engine

• 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: 2013
• Tom: Vol. 20, No. 4
• Strony: 71--78
• Opis fizyczny: Bibliogr. 4 poz., rys.

Twórcy

autor

Cisek J.

• Cracow University of Technology, Faculty of Mechanical Engineering Warszawska Street 24, 31-155 Krakow, Poland tel.:[phone], fax: [phone]

Bibliografia

• [1] Cisek, J., Optical research on the fuel injection into a diesel engine for diesel fuel, RME and rape oil, Journal of KONES Powertrain and Transport, Vol. 19, No. 3, pp. 65-74, Warsaw 2012.
• [2] Cisek, J., Mruk, A., Emission of toxic exhaust components of the engine a8C22 working in the locomotive SM-42 and supplied by the mixture RME with diesel fuel in the test F of the 2004/26/WE directive, Technical Journal of Cracow University of Technology 4-M/2012 exercise book 9/109, Politechnika Krakowska, pp. 23-34, Kraków 2012.
• [3] Cisek, J., Effect of Biofuels (FAME) on the Coking Level in Diesel Engine Injector, XLII. International Scientific Conference of Czech and Slovak University Departments and Institutions Dealing with the Research of Combustion Engines. Zylina, Słovakia 2011.
• [4] Cisek, J., Combustion of RME with Water Emulsions on Diesel Engine, International Conference „Biofuels for Energetic 2009, Praga 2009.