Vibroacoustic analysis of marine engine supplied with mixture of fuels

The main purpose of this paper is to obtain the differences in the vibrations of engine (Doosan MDT196TI) which was powered using two different fuel mixtures - liquefied natural gas with diesel pilot and diesel only. LNG and diesel oil differ in combustion temperature, density, and cetane number; th...

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Bibliographic Details
Published inIOP conference series. Materials Science and Engineering Vol. 664; no. 1; pp. 12023 - 12030
Main Authors Wróbel, Radosław, Andrych - Zalewska, Monika, Tkaczyk, Marcin, Fryda, Szymon, Dimitrov, Radostin
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.10.2019
Subjects
Accelerometers
Cetane number
Combustion temperature
Diagnostic systems
Diesel fuels
Digital signal processing
Fast Fourier transformations
Fourier transforms
Fuel mixtures
Liquefied natural gas
Marine engines
Piezoelectricity
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Summary:The main purpose of this paper is to obtain the differences in the vibrations of engine (Doosan MDT196TI) which was powered using two different fuel mixtures - liquefied natural gas with diesel pilot and diesel only. LNG and diesel oil differ in combustion temperature, density, and cetane number; the combustion process of various fuels proceeds differently, so it has an impact on the generated vibroacoustic vibrations (vibrations have a direct impact on the degree of machine degradation). In the research, the diagnostic system is based on piezoelectric accelerometers and Digital Signal Processing operations (windowing, Fast Fourier Transform). In the conclusions section the obtained results are analysed, indicating how the tested fuels have an effect on vibrations.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/664/1/012023