The University of Southampton
University of Southampton Institutional Repository

Retro-fit solutions for energy efficient shipping

Retro-fit solutions for energy efficient shipping
Retro-fit solutions for energy efficient shipping
With the increase in fuel prices and growing pressure on the marine industry to reduce greenhouse gas emissions, there is a demand for both new and current ships in operation to develop novel ways to reduce their fuel consumption. In January 2013, the International Maritime Organisation (IMO) provided mandatory methods on how both new and existing ships will be assessed on their emissions via the Energy Efficiency Design Index (EEDI)and the Ship Energy Efficiency Management Plan (SEEMP) respectively. Existing ships are less suitable for major design changes, so they must rely on engine room systems upgrades or the use of retro-fit devices. This research paper presents how the efficiency of an existing tanker hull form could be increased by 10% with the use of cost-effective retro-fit solutions. A method, involving CFD simulations performed using OpenFOAM and validated with wind tunnel tests, is explained. An in-house code, based on the Blade-Element Momentum Theory (BEMT), is used to provide some propeller characteristics: efficiency, torque and thrust coefficients.
Although, the efficiency output from the BEMT code is not the propulsive coefficient, the different appendage configurations may still be directly compared using this efficiency, denoted BEMT throughout this paper. This procedure successfully detects changes in propeller efficiency at model scale due to devices and thus provides a route to investigate a wide variety of devices. Preliminary results highlightes that efficiency gains up to 3% could be obtained with vanes and up to 9% with flow increasing ducts
ship energy efficiency, CFD, wind tunnel, retrofit devices
0140-3818
148
Universty of Southampton
Collison, R.E.
b050975d-4beb-469f-a1b9-2a9733a27427
James, M.C.
aaf059b7-05ec-4560-be35-7fc1bfe46f07
Turnock, S.R.
d6442f5c-d9af-4fdb-8406-7c79a92b26ce
Hudson, D.A.
3814e08b-1993-4e78-b5a4-2598c40af8e7
Collison, R.E.
b050975d-4beb-469f-a1b9-2a9733a27427
James, M.C.
aaf059b7-05ec-4560-be35-7fc1bfe46f07
Turnock, S.R.
d6442f5c-d9af-4fdb-8406-7c79a92b26ce
Hudson, D.A.
3814e08b-1993-4e78-b5a4-2598c40af8e7

Collison, R.E., James, M.C., Turnock, S.R. and Hudson, D.A. (2013) Retro-fit solutions for energy efficient shipping (Ship Science Reports, 148) Universty of Southampton 63pp.

Record type: Monograph (Project Report)

Abstract

With the increase in fuel prices and growing pressure on the marine industry to reduce greenhouse gas emissions, there is a demand for both new and current ships in operation to develop novel ways to reduce their fuel consumption. In January 2013, the International Maritime Organisation (IMO) provided mandatory methods on how both new and existing ships will be assessed on their emissions via the Energy Efficiency Design Index (EEDI)and the Ship Energy Efficiency Management Plan (SEEMP) respectively. Existing ships are less suitable for major design changes, so they must rely on engine room systems upgrades or the use of retro-fit devices. This research paper presents how the efficiency of an existing tanker hull form could be increased by 10% with the use of cost-effective retro-fit solutions. A method, involving CFD simulations performed using OpenFOAM and validated with wind tunnel tests, is explained. An in-house code, based on the Blade-Element Momentum Theory (BEMT), is used to provide some propeller characteristics: efficiency, torque and thrust coefficients.
Although, the efficiency output from the BEMT code is not the propulsive coefficient, the different appendage configurations may still be directly compared using this efficiency, denoted BEMT throughout this paper. This procedure successfully detects changes in propeller efficiency at model scale due to devices and thus provides a route to investigate a wide variety of devices. Preliminary results highlightes that efficiency gains up to 3% could be obtained with vanes and up to 9% with flow increasing ducts

Text
ShipScienceReport148.pdf - Version of Record
Download (7MB)

More information

Published date: January 2013
Keywords: ship energy efficiency, CFD, wind tunnel, retrofit devices
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 347597
URI: http://eprints.soton.ac.uk/id/eprint/347597
ISSN: 0140-3818
PURE UUID: 79003bbb-0ebe-4ae5-a638-b47d77814cca
ORCID for M.C. James: ORCID iD orcid.org/0000-0002-6964-4598
ORCID for S.R. Turnock: ORCID iD orcid.org/0000-0001-6288-0400
ORCID for D.A. Hudson: ORCID iD orcid.org/0000-0002-2012-6255

Catalogue record

Date deposited: 25 Jan 2013 15:07
Last modified: 10 Jun 2020 00:25

Export record

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×