Open AccessVibroacoustic analysis of marine engine supplied with mixture of fuels
Author(s) -
Radosław Wróbel,
Monika Andrych-Zalewska,
M. Tkaczyk,
Szymon Fryda,
Radostin Dimitrov
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/664/1/012023
Subject(s) - diesel fuel , cetane number , vibration , combustion , automotive engineering , diesel engine , environmental science , signal (programming language) , accelerometer , engineering , petroleum engineering , materials science , acoustics , computer science , biodiesel , chemistry , physics , biochemistry , operating system , organic chemistry , programming language , catalysis
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.