Pregledni rad
https://doi.org/10.17818/NM/2022/2.5
Prediction of the very- and ultra-large Container Ships’ Electricity Generation Capacity at the Initial Design Stage
Piotr Kamil Korlak
orcid.org/0000-0002-4548-4796
; Maritime University of Szczecin Doctoral School Szczecin, Poland
Sažetak
Container ships represent the fastest growing segment of global shipping. Tackling such challenges as the constant pursuit of reduction of unit transportation costs and negative effects on the environment has led to the development of very- and ultra-large container ships, which dominate transport on the world’s major shipping routes. Very-large container ships are conventionally assumed to have a cargo capacity above 10,000 TEU and an overall hull length below 369 meters, whilst the unique feature of ultra-large container ships is an overall hull length over 390 meters. The ship operational states and the main electric power receivers such as reefers and bow thrusters are mentioned and formulae to predict their electricity demand are given. Contemporary configurations of ships’ electric power stations are presented and discussed. Cargo capacity expressed in 20-foot equivalent units (TEU) was identified as the main predictor of the electricity generation capacity based on a representative very- and ultra-large container ships database. Using a simple linear regression model based on the least squares method, a formula was developed to predict the electricity generation capacity of very- and ultra-large container ships at the initial design stage. The prediction will find application in the design of very and ultra-large container ships’ electric power stations. The use of the developed formula at the initial design stage enables obtaining results that are sufficiently accurate to the results of the exact verification calculations at the technical design stage.
Ključne riječi
container ship; VLCS; ULCS; electricity generation; electric power station; generating set
Hrčak ID:
278911
URI
Datum izdavanja:
8.6.2022.
Posjeta: 542 *