This thesis examines fuel consumption calculations for the KRISO container ship (KCS) using model resistance measurements in a towing tank. The primary objective was to develop a comprehensive methodology for fuel consumption assessment based on experimental measurements, theoretical calculations, and propulsion system optimization. The research covered all key aspects from hull hydrodynamic characteristics to economic analysis of hull fouling effects.
Resistance measurements were conducted on a geometrically similar ship model at various speeds in the towing tank. The Froude hypothesis, with surface roughness corrections according to Townsin's formula, was applied to scale the results to the full-size vessel. The results demonstrated that this method predicts ship resistance with an accuracy of within 5%.
Based on the calculated resistance, the required effective engine power was determined to be 26,525.05 kW at the design speed of 18.29 knots. The propulsion system optimization involved analysis of available two-stroke engines and design of a Wageningen B-series propeller. The selected propulsion system was a MAN/B&W 8G80ME-C10.7-HPSRC engine.
The fuel consumption analysis revealed that hull fouling significantly impacts operational efficiency. An increase in surface roughness from 150 μm to 600 μm resulted in a 4.9% increase in fuel consumption for the Koper-New York route, leading to additional costs that vary depending on fuel prices.
The research findings were validated against open-source data for KRISO-type vessels, showing excellent correlation. The thesis contributes through its integrated approach combining theoretical foundations, practical calculations, and economic analyses, enabling improved planning and management of ship operations.
Key factors for fuel consumption optimization include regular hull maintenance, proper selection of engine operating points, and application of modern propeller design approaches. These results may serve as a foundation for further research in sustainable maritime transport technologies.
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