doi: 10.52899/24141437_2026_02_185
UDK: 62-144.3

Comparative analysis of environmental performance of a marine diesel engine operating on conventional diesel fuel and SME B5 biofuel

Чан Х. Б., Черкаев Г. В.
Article language:
Citation Link: Cherkaev GV, Tran Huu Bac. Comparative Analysis of Environmental Performance of a Marine Diesel Engine Operating on Conventional Diesel Fuel and SME B5 Biofuel. Transactions of the Saint Petersburg State Marine Technical University. 2026;5(2):185–193. DOI: 10.52899/24141437_2026_02_185 EDN: WDMLLE

Annotation

Background: Increasing environmental requirements for marine power plants stimulate the search for alternative fuels capable of reducing harmful emissions without considerable modifications of diesel engines. Aim: This study aimed to analyze and compare the environmental performance indicators of the marine diesel engine L136TL when operating on conventional diesel fuel (DO) and SME B5 biofuel. Methods: The study is based on numerical simulation of the engine working cycle using the specialized Diesel-RK software. The simulation takes into account the physical and chemical properties of fuels, fuel injection characteristics, and gas exchange parameters. Results: The calculations provided pressure and temperature variations in the cylinder, heat release rate characteristics, as well as nitrogen oxide (NOx) concentration and particulate matter (PM) emissions for both fuel types. The results demonstrate that the use of SME B5 biofuel leads to lower NOx and PM emissions compared with conventional diesel fuel. Conclusion: Biofuel SME B5 can be considered a promising alternative fuel for marine diesel engines, allowing a reduction in environmental impact while maintaining acceptable engine performance characteristics. Keywords: marine engine; biofuel; environmental performance indicators; NOx emission; soot content; Diesel-RK.

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