Utilization of the zero unitarization method for the building of a ranking for diagnostic marine engine parameters

• Autorzy: Zadrąg R. , Kniaziewicz T.

Identyfikatory

DOI

10.19206/CE-2017-408

• Języki publikacji: EN

Abstrakty

EN

Changing some of the parameters of the engine structure affects the emission of harmful components in the exhaust gases. This primarily concerns damage in the cargo exchange system as well as in the fuel system and engine boost system. Changes in emissions of harmful compounds are often ambiguous, depending largely on the parameters that shape the combustion process. An additional problem is that often simple but undesired interactions occur with the interaction of these parameters. It is therefore possible to speak of different diagnostic parameters' sensitivity to the same extractions from the engine structure, but implemented in other load states. In cases where the set of parameters is numerous and the values of these parameters are similar, there is a real problem with their proper classification, often based on the discretion of the researcher. In the paper the authors propose a methodology for classification of acquired diagnostic parameters. In previous papers [4, 5], Hellwig's method of information capacity index was proposed as a measure of diagnostic parameter sensitivity. This method can be used to build a diagnostic parameter ranking that divides the set of diagnostic variables into stimulators, destimulators and nominators. This normalization of the set seems to be helpful in making a diagnostic decision not influenced by the discretion of the researcher. The zero unitary method can also be helpful in creating diagnostic tests.

Słowa kluczowe

EN

diagnostic; theory of experiments; marine diesel engine; exhaust gas toxicity; multi-equation models

PL

diagnostyka; teoria eksperymentów; silnik okrętowy; toksyczność spalin; modele wielorównaniowe

• Wydawca: Polskie Towarzystwo Naukowe Silników Spalinowych
• Czasopismo: Combustion Engines
• Rocznik: 2017
• Tom: R. 56, nr 4
• Strony: 44--50
• Opis fizyczny: Bibliogr. 5 poz., wykr.

Twórcy

autor

Zadrąg R.

• Faculty of Ocean Engineering and Ship Technology at Gdansk University of Technology

autor

Kniaziewicz T.

• Faculty of Mechanical and Electrical Engineering at the Polish Naval University

Bibliografia

• [1] RUDNICKI, J., ZADRĄG, R. Problems of modelling toxic compounds emitted by a marine internal combustion engine in unsteady states. Polish Maritime Research. 2014, 21, 57-65.
• [2] ZADRĄG, R. Criteria for the selection of the diagnostic parameter for diagnosis of marine diesel engine. Logistyka. 2010, 4.
• [3] ZADRĄG, R., ZELLMA, M. Modelling of toxic compounds emission in marine diesel engine during transient states at variable pressure of fuel injection. Journal of Polish CIMAC. 2014, 8(1).
• [4] ZADRĄG, R., KNIAZIEWICZ, T. The identification of toxic compound emission sensitivity as a diagnostic parameter during dynamic processes of the marine engine. Journal of Polish CIMAC. 2015, 10(1), 161-170.
• [5] ZADRĄG, R., KNIAZIEWICZ, T. Identification of diagnostic parameter sensitivity during dynamic processes of a marine engine. The 6th International Congress on Combustion Engines. PTNSS-2015-3507, 2015.