TRANSACTIONS OF THE KRYLOV STATE RESEARCH CENTRE

Science journal

 
ISSN (print) 2542-2324 /(online) 2618-8244


Articles of The Transactions of KSRC








Modification of containership hulls at speeds reduced for cutting down greenhouse gases



Full text article ( in russian)

Year

 
2022

Issue

 
400

Volume

 
2

Pages

 
59-66

Caption

 
Modification of containership hulls at speeds reduced for cutting down greenhouse gases

Authors

 
Sverchkov А.V., Galushina M.V., Vastarouchas D., Politi P.

Keywords

 
containership, bow bulb, bow modification, model tests, energy efficiency design index EEDI

DOI

 
10.24937/2542-2324-2022-2-400-59-66

Summary

 
Object and purpose of research. The objects of study are two containerships of 8100 and 8500 TEU capacities operated by Danaos Shipping Co. Ltd, Greece. The purpose is to experimentally verify alteration of bow shapes in the containerships designed to reduce hydrodynamic resistance at a lower operation speed, as well as to examine the impact of these alterations on energy efficiency design index (EEDI).
Subject matter and methods. Experimental data from model tests were obtained in a deep-water test tank of Krylov State Research Centre.
Main results. Based on the research studies the shaft power was determined versus the containership speed for the hulls with the original and modified bow shapes.
Conclusion. Switchover to lower speeds combined with optimization and modernization of bow shapes will bring a possible reduction of shaft power and, accordingly, less fuel consumption and carbon dioxide emissions by about 40 %.

Rubrics

 
Naval architecture

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ISSN (print) 2542-2324 / ISSN (online) 2618-8244

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