skip to main content

Investigation of Hull Effect Geometry on Fuel Consumption and Energy Efficiency Design Index (EEDI) in the Variation of Ship Service Speeds

*betty ariani  -  universitas muhammadiyah surabaya, Indonesia
rizky chandra ariesta  -  Institut Teknologi Sepuluh Nopember, Indonesia
Rembo prasetya  -  Universitas Muhammadiyah Surabaya, Indonesia
marista oktaviani  -  Universitas Muhammadiyah Surabaya, Indonesia
mohammad hanifuddin hakim  -  Universitas muhammadiyah surabaya, Indonesia
Open Access Copyright (c) 2022 Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan
Creative Commons License This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Citation Format:
Abstract

Energy efficiency in ships and green technology in the shipping sector are the main issues and missions to support 2050 zero-carbon efforts. Optimizing the hull by changing the deadrise angle is one of the implementations of green technology in ship design and hydrodynamics. Changing the geometry of the hull is directly correlated with the resistance and main engine of the ship. A numerical study is presented regarding the effect of changing the hull deadrise angle from 9° existing conditions to 10°, 15°, and 20° on ship resistance, fuel efficiency, and energy efficiency design index (EDI). The method used is a dynamic fluid computational simulation with a Holtrop count method validation approach. Resistance is reduced by 8.2% at 12 knots and 6.9% at 6 knots higher than existing deadrises. The fuel efficiency obtained is 6.9% at 6 knots and 8.2% at 12 knots, a fuel saving of 2.43 tonnes in the monthly periodization. However, the phenomenon of the EEDI value at the lowest resistance with a higher speed has a lower performance value. Reducing from 12 to 9 knots in speed, we get a 66% increase in EEDI performance.

Fulltext
Keywords: Fuel efficiency, Deadrise angle, Hull, Ship resistance, EEDI

Article Metrics:

Last update:

No citation recorded.

Last update:

No citation recorded.