Study of the possibility of determining contamination of diesel fuels using optical methods
https://doi.org/10.46845/1997-3071-2025-78-115-127
Abstract
The basis for the efficient and trouble-free operation of marine propulsion systems is the study of processes occurring with their components. In this regard, an important aspect is the uninterrupted operation of diesel engines, which depends on the state of diesel fuel used on ships at present. The need to control the state of fuel is a priority task facing mechanics. Improving existing and developing new methods for monitoring the physical and chemical characteristics of diesel fuels, and analyzing the factors affecting the processes in engines remain relevant to this day. In this paper, an attempt has been made to apply a combination of spectrophotometry, refractometry and microscopy methods to study the characteristics of diesel fuels. Using an SF-2000 spectrophotometer and a diffuse and mirror reflection attachment, transmission coefficient spectra of all diesel fuel samples in the visible part of the spectrum (400–800 nm) have been obtained. Determination of color coordinates and color difference indices using standard and non-standard methods makes it possible to restore the color of the fuel surfaces. This method allows to identify contamination and promptly take measures to eliminate the causes. The work shows that a non-standard method (using a smartphone and software) for obtaining color coordinates for contamination control is appropriate in maritime conditions. The refractometric method makes it possible to determine the values of the refractive index and average dispersion of fuels, which change during contamination. An additional method for studying inclusions in fuel is microscopy. This method is especially effective for dark diesel fuels.
Keywords
Supporting agencies: The research was carried out with the financial support of the Federal Agency for Fisheries of the Russian Federation (project number № 1024032500238-0- 2.7.3;2.5.4;2.11.2.).
About the Authors
I. P. Korneva
Kaliningrad State Technical University
Russian Federation
Russian Federation
Irina P. Korneva, PhD in Engineering, Associate Professor, Professor of the Department of Physics,
Kaliningrad
S. N. Vinogradov
Kaliningrad State Technical University
Russian Federation
Russian Federation
Sergey N. Vinogradov, cadet of the Marine Institute,
Kaliningrad
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Review
For citations:
Korneva I.P., Vinogradov S.N. Study of the possibility of determining contamination of diesel fuels using optical methods. KSTU News. 2025;(78):115-127. (In Russ.) https://doi.org/10.46845/1997-3071-2025-78-115-127
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