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Instantaneous Rotational Speed Algorithm for Locating Malfunctions in Marine Diesel Engines

Author

Listed:
  • Damian Kazienko

    (Faculty of Marine Engineering, Maritime University of Szczecin, Szczecin 71-650, Poland)

  • Leszek Chybowski

    (Faculty of Marine Engineering, Maritime University of Szczecin, Szczecin 71-650, Poland)

Abstract

This article suggested broadening the standard methods for diagnosing the technical condition of diesel engines to include an analysis of the instantaneous rotational speed of compression combustion engines with the use of a novel algorithm. The authors revised the subject concerning the use of the analysis of instantaneous changes in the rotational speed of an engine when assessing its technical condition and the location of the malfunction. An algorithm and its practical implementation in a prototype diagnostic system called SpeedMA were presented. This article reported the test results of the prototype in the context of indicating the engine cylinder in which ignition failed to occur. Tests were carried out for two marine engines: a low-speed trunk engine directly driving the fixed-pitch propeller and a medium-speed trunk engine driving the alternator. For each case, an analysis was carried out for different engine loads and at individual cylinders in which combustion failed to occur. The experimental results showed an unambiguous relation between the combustion process of the examined engines and changes in the instantaneous rotational speed. The results also confirmed the usefulness of the proposed method and showed the correct operation of the presented diagnostic algorithm. The proposed diagnostic system could be used during the operation of engines running in real ship engine rooms.

Suggested Citation

  • Damian Kazienko & Leszek Chybowski, 2020. "Instantaneous Rotational Speed Algorithm for Locating Malfunctions in Marine Diesel Engines," Energies, MDPI, vol. 13(6), pages 1-31, March.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:6:p:1396-:d:333410
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    References listed on IDEAS

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    1. Artur Bejger & Jan Bohdan Drzewieniecki, 2019. "The Use of Acoustic Emission to Diagnosis of Fuel Injection Pumps of Marine Diesel Engines," Energies, MDPI, vol. 12(24), pages 1-11, December.
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    Cited by:

    1. Wojciech Leśniewski & Daniel Piątek & Konrad Marszałkowski & Wojciech Litwin, 2020. "Small Vessel with Inboard Engine Retrofitting Concepts; Real Boat Tests, Laboratory Hybrid Drive Tests and Theoretical Studies," Energies, MDPI, vol. 13(10), pages 1-13, May.
    2. Leszek Chybowski & Marcin Szczepanek & Katarzyna Gawdzińska & Oleh Klyus, 2023. "Particles Morphology of Mechanically Generated Oil Mist Mixtures of SAE 40 Grade Lubricating Oil with Diesel Oil in the Context of Explosion Risk in the Crankcase of a Marine Engine," Energies, MDPI, vol. 16(9), pages 1-27, May.

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