Marine Fuels Conservation
Maine Fuel Conservation/Emission Reduction Project typically leads
to a reduction of the volume of pollutants emitted. This relationship is
particularly strong for the emission of greenhouse gases (GHGs). Improved vessel efficiency is the
cornerstone of IMO’s 2013 mandatory measures to reduce GHG emissions, which
require vessel manufacturers to use the Energy Efficiency Design Index (EEDI)
for new ships and the Ship Energy Efficiency Management Plan (SEEMP) for all
vessels. EEDI estimates ship CO2 emissions per ton-mile of goods
transported relative to a reference average of similar ships. The SEEMP is a
‘live’ document, containing energy improvement measures identified by the ship
owner that will be kept onboard each ship. The document should be reviewed
regularly to establish the relevance and impact of each measure on ship and
IMO has found that improved vessel fuel efficiency is
possible through a variety of approaches including:
• Changes in ship design.
• Use of high-performance propellers.
• Application of wind and solar power to
supplement ship energy supply (thereby reducing required energy from propulsion
or auxiliary engines).
• Hull friction reduction options.
• Hybrid low-carbon alternative fuels.
• Operational changes such as slow
steaming, shore power, and engine controls that better match engine output to a
ship’s energy demand.
These fuel conservation initiatives are particularly
attractive to vessel operators, given that fuel costs account for between 40
and 70 percent of a vessel’s operating expenses, and that the demand for
low-sulfur ECA-compliant fuel will be increasing, along with the price of these
Fuel conservation options are not appropriate in all
situations. For instance, certain biodiesel applications may cause elevated NOx
emissions, and the use of biodiesel and slow steaming may have engine
A compendium of fuel conservation options for port
authorities, ship operators, and policy makers to encourage cost-effective
changes to the industry. The compendium should include a ranking system for
options that have the greatest impact on air quality, taking into consideration
infrastructure requirements, and capital and operating costs.
The compendium should also identify future technological initiatives.
Vessels tend to have a long useful life, so identifying future technologies
that could significantly improve fuel usage and air quality is critical to encourage
adoption at the earliest stage of a vessel’s life cycle.
comprehensive compendium of fuel conservation/emission reduction options
encourages the sustainability of marine cargo shipments. Additionally, port authorities, ship
operators, and policy makers must have up-to-date information about options to
enhance vessel fuel efficiency in a cost-effective manner. As noted earlier,
such information will facilitate a reduction in emissions and possibly lower
shipping costs as well.
documents related to Energy Efficiency Design Index (EEDI) and Ship Energy
Efficiency Management Plan (SEEMP).
The following tasks are not comprehensive. They are intended as a guide to what might be
necessary to successfully complete the research:
review available marine vessel technologies, fuels and changes in operation
that enhance fuel consumption rates and reduce emissions. The collected data should include:
database to store and retrieve the compiled data
Provide a summary
of Phase 1 activities, including data structure of project database.
From the data
compiled in Phase 1 develop a fuel conservation ranking system that takes into
consideration anticipated fuel and cost savings, emission reductions,
infrastructure issues and limitations.
Apply the ranking
system to the compiled data to identify the most attractive approaches.
For the highest
ranked approaches, develop a more in depth technical assessment of the
studies the demonstrate the value of the highest ranked approaches,
documentation that describes the ranking system and provide a summary of ranked
document that summarized the additional technical data compiled and include a
case study for each of the highest ranking technologies.
implementation manual and PowerPoint presentation for dissemination to
such as MARAD and the U.S. EPA that have programs to conserve fuel or reduce
emissions may find this compendium a complementary tool for their existing
programs. These agencies could lead the
implementation of this strategy in conjunction with TRB, AASHTO, and trade
organizations such as American Association of Port Authorities and vessel
operator trade organizations.
Vessel operators may find a compendium of technologies particularly useful, furthermore it may also be of value to Port Authorities, local, state and federal agencies, non-governmental groups, trade groups, and consultants.
|Sponsoring Committee:||AW030, Marine Environment
|Research Period:||24 - 36 months|
|RNS Developer:||Richard Billings and Christopher Roof|
|Source Info:||Vessel operators may find a compendium of technologies particularly useful, furthermore it may also be of value to Port Authorities, local, state and federal agencies, non-governmental groups, trade groups, and consultants.|
|Index Terms:||Fuel conservation, Fuel consumption, Fuels, Ships, |