THEORETICAL ANALYSIS OF THE EFFICIENCY OF MARINE DIESEL FUEL ALTERNATIVES

Abstract

This study presents a theoretical investigation into the impact of various fuel types, including alternative and low-sulfur options, on the effective performance indicators of marine diesel engines. The primary objective is to identify the most efficient fuel type through mathematical modeling, thereby avoiding financial and time losses associated with physical testing. Calculations were conducted in the MATLAB environment for the 8ChSPN 18/22 engine, utilizing specific algorithms based on thermodynamic laws. Results indicate that standard diesel and gas turbine fuels provide the highest efficiency in terms of power output and fuel consumption. Conversely, the use of biodiesels leads to a reduction in effective power and an increase in brake specific fuel consumption. Ultimately, the study concludes that fuel selection must be based on a multi-factor approach considering technical-economic criteria and International Maritime Organization (IMO) environmental regulations.

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