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The paper presents the results research related to the possibility of fuel injection pump diagnosis on the basis of indicator diagram. The study was conducted on a laboratory four-stroke marine engine, type Sulzer 3Al 25/30, with nominal power Nen = 408 kW at nominal rotational speed n = 750 rpm. The study was carried out according to active experiment plan, during which the engine failure of the injection system was simulated. Simulation of fuel pump leakage was completed by the opening of the adjusting screw on the pump discharge. Measurements were made at a constant engine speed of 750 rev/min for five loads: 50, 100, 150, 200, 250 kW. Measurements of pressure of combustion were performed by means of tensometric sensors of Spice Company. Based on measured pressure curves heat release characteristics were determined. The algorithm allows the determination of net heat release rate q and the net generated heat Q characteristics. Based on the obtained results it can be concluded that significant improvement in the diagnostic use of indicator diagrams can be obtained by using heat release characteristics. These characteristics are correlated with the process of fuel injection and the injection pump operation. As demonstrated in the work of analyzing the heat release rate q, it is possible to infer diagnosis on the technical condition of the fuel injection system.
Wydawca
Czasopismo
Rocznik
Tom
Strony
215--221
Opis fizyczny
Bibliogr. 12 poz., rys.
Twórcy
autor
- Gdynia Maritime University, Faculty of Marine Engineering Morska Street 83, 81-225 Gdynia, Poland
Bibliografia
- [1] Heywood, J. B., Internal Combustion Engine Fundamentals, McGraw-Hill, 1988 – 930.
- [2] Klein, M., Eriksson, L., Aslund, J., Compression ratio estimation based on cylinder pressure data, Control Engineering Practice 14, pp. 197-211, 2006.
- [3] Dereszewski, M., Analysis of crankshaft’s angular velocity waveforms as a method of long term monitoring of engine performance quality, Scientific Journals Maritime University of Szczecin, 28(100), Z. 1 pp. 14-18, Szczecin 2011.
- [4] Pawletko, R., Polanowski, S., Research of the influence of marine diesel engine Sulzer AL 25/30 load on the TDC position on the indication graph, Journal of KONES Powertrain and Transport, Vol. 17, No. 3, Warsaw 2010.
- [5] Polanowski, S., Determination of location of Top Dead Centre and compression ratio value on the basis of ship engine indicator diagram, Polish Maritime Research No. 2(56), Vol. 15, 2008.
- [6] Rychter, T., Teodorczyk, A., Modelowanie matematyczne roboczego cyklu silnika tłokowego, PWN Warszawa, 1990.
- [7] Parlak, A., Yasar, H., Hasimoglu, C., Kolip, A., The effects of injection timing on Nox emissions of a low heat rejection indirect diesel injection engine, Applied Thermal Engineering 25, pp. 3042-3052, 2005.
- [8] Kowalski, J., An experimental study of emission and combustion characteristics of marine diesel engine with fuel pump malfunctions, Applied Thermal Engineering, doi: 10.1016, Vol. 65, pp. 469-476, 2014.
- [9] Bejger, A., Zużycie i możliwości diagnozowania wybranych elementow układu wtryskowego silnikow okrętowych, Diagnostyka, 4 (40), 2006.
- [10] Gil, L., Ignaciuk P., Niewczas A., Badania zużycia elementow układu wtryskowego silnika o zapłonie samoczynnym zasilanego paliwami roślinnymi, Zeszyty Naukowe WSOWL, Nr 4 (158), 2010.
- [11] Elamin, F., Gu, F., Ball, A., Diesel Engine Injector Faults Detection Using Acoustic Emissions Technique, Modern Applied Science, Vol. 4, No. 9, 2010.
- [12] Albarbar, A., Gub, F., Ball, A.D., Diesel engine fuel injection monitoring using acoustic measurements and independent component analysis, Measurement 43, pp. 1376-1386, 2010.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-20be7bf3-7596-4a98-bf3b-412cf12c6c2b