scholarly journals CLASSIFICATION OF MODERN METHODS FOR IMPROVING THE WORKING PROCESS OF MARINE DIESEL ENGINE

2020 ◽  
Vol 12 (4) ◽  
pp. 765-774
Author(s):  
Pavel A. Erofeev ◽  
◽  
Vladimir A. Zhukov ◽  
Sergei G. Chernyi ◽  
◽  
...  
Keyword(s):  
Diesel Engine ◽  
Marine Diesel Engine ◽  
Working Process ◽  
Modern Methods ◽  
Marine Diesel

scholarly journals Method for assessing the technical condition of marine diesel engine driving the synchronous generator

2019 ◽  
Vol 177 (2) ◽  
pp. 139-144
Author(s):  
Tomasz KNIAZIEWICZ ◽  
Marcin ZACHAREWICZ
Keyword(s):  
Diesel Engine ◽  
Rotational Speed ◽  
Synchronous Generator ◽  
Technical Condition ◽  
Marine Diesel Engine ◽  
Phase Voltage ◽  
Working Process ◽  
Working Cycle ◽  
Marine Diesel ◽  
Speed Fluctuation

The paper presents an innovative method for assessing technical condition of a marine diesel engine that drives synchronous generator. It is based on the measurement and analysis of generators phase-to-phase voltage. Additionally, it requires the measurement of a pseudoperiodic signal [3] with a period equal to duration of engines working cycle. The basis for developing method was the assumption that rotational speed fluctuations of an engines crankshaft (and also the generator) depend on a course of a working process carried out in it. The generators phase-to-phase voltage is directly dependent on a rotational speed fluctuation of its rotor. It must therefore be possible to assess a course of a working process of an engine based on a voltage waveform of a synchronous generator that cooperates ogether.

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