Streamlined semi-automatic data processing framework for ship performance analysis

Gupta, Prateek; Kim, Young-Rong; Steen, Sverre; Rasheed, Adil

doi:10.1016/j.ijnaoe.2023.100550

Cited by 1 publication

(2 citation statements)

References 27 publications

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“…Equation (5) indicates the relationship of the differential of time dt and the differential of draft dd. The total travel time T could be written as the integral of the draft by the following:…”

Section: Trim and Me Power Joint Optimization With Fixed Voyage Lengt...mentioning

confidence: 99%

“…Generally speaking, there are four main categories of methods for the energy saving and emission reduction of ships, which are as follows: optimal design of ship form [2], application of green energy [3], waste heat recovery [4], and operation optimization of ships, etc. Modern ships typically first collect ship performance data [5], then employ one or more of the aforementioned methods to reduce the fuel consumption for better economy and to cut carbon emissions in order to meet the increasingly strict standards, such as the Energy Efficiency Operational Indicator (EEOI) [6] and the Energy Efficiency Design Index (EEDI) [7], for cargo ships. Among these methods, operation optimization is an efficient but low-cost way to reduce energy consumption for a ship, by means of speed optimization [8,9], navigation scheduling optimization [10], route optimization [11], and trim optimization, etc.…”

Section: Introductionmentioning

confidence: 99%

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Trim and Engine Power Joint Optimization of a Ship Based on Minimum Energy Consumption over a Whole Voyage

Yu,

Zhang,

et al. 2024

JMSE

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Trim optimization is an available approach for the energy saving and emission reduction of a ship. As a ship sails on the water, the draft and trim undergo constant changes due to the consumption of fuel oil and other consumables. As a result, the selection of the initial trim is important if ballasting or shifting liquid among the tanks is not considered during a voyage. According to the characteristics of ship navigation and maneuvering, a practical trim optimization method is proposed to identify the Optimal Trim over a Whole Voyage (OTWV) which makes the fuel consumption of the voyage minimum. The calculations of speed vs. draft and trim surfaces are created according to hull resistance data generated by CFD, model tests, or real ship measurements, and these surfaces are used to calculate the OTWV. Ultimately, a trim and Main Engine (ME) power joint optimization method is developed based on the OTWV to make the total fuel consumption minimum for a voyage with a fixed length and travel time. A 307000 DWT VLCC is taken as an example to validate the practicality and effect of the two proposed optimization methods. The trim optimization example indicates that the OTWV could save up to 1.2% of the total fuel consumption compared to the Optimal Trim at Initial Draft (OTID). The trim and ME power joint optimization results show that the proposed method could steadily find the optimal trim and ME power combination, and the OTWV could save up to 1.0% fuel consumption compared to the OTID in this case.

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Section: Trim and Me Power Joint Optimization With Fixed Voyage Lengt...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Trim and Engine Power Joint Optimization of a Ship Based on Minimum Energy Consumption over a Whole Voyage

Yu,

Zhang,

et al. 2024

JMSE

View full text Add to dashboard Cite

show abstract

Streamlined semi-automatic data processing framework for ship performance analysis

Cited by 1 publication

References 27 publications

Trim and Engine Power Joint Optimization of a Ship Based on Minimum Energy Consumption over a Whole Voyage

Trim and Engine Power Joint Optimization of a Ship Based on Minimum Energy Consumption over a Whole Voyage

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