Abstract
Turbochargers are important assembles of marine reciprocating internal combustion engines. Supervision of that technical state is limited to the thermodynamic parameters, so there are often gradual and sudden failures to leading a state of unfitness of the entire internal combustion engine. The article presents the results of preliminary diagnostics investigations of turbochargers carried out in laboratory and ships conditions of three types of four-stroke engines. Researches were aimed at choice of used work and residual processes, places of the locations of sensors, domain of signal analysis and diagnostic symptoms. In assessing diagnostic symptoms were checked for that sensitiveness to engine load, and the selected simulated technical states determined from reliability. Selected vibration and thermodynamic processes were examined. In preliminary examinations have showed that the value of the engine load significantly affects the diagnostic parameters. Selected diagnostic symptoms and measures in preliminary examinations proved to be sensitive to the proposed locations of sensors, types and domains signals analyzes. Applied diagnostic symptoms in preliminary investigations have proven to be sensitive to the simulated destructive changes in the technical state in principal research. Some of thermodynamic symptoms, as well the vibration processes were recognized interesting.
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Acknowledgements
This research outcome has been achieved under the research project “Ecological and economic aspects of the operation of selected elements of marine power systems” No. 1/S/IESO/2014 financed from a subsidy of the Ministry of Science and Higher Education for statutory activities.
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Monieta, J. (2018). Preliminary Investigations of Marine Diesel Engines Turbochargers Diagnostic. In: Timofiejczuk, A., Łazarz, B.E., Chaari, F., Burdzik, R. (eds) Advances in Technical Diagnostics. ICTD 2016. Applied Condition Monitoring, vol 10. Springer, Cham. https://doi.org/10.1007/978-3-319-62042-8_7
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DOI: https://doi.org/10.1007/978-3-319-62042-8_7
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