EEDI
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EEDIEnergy Efficiency Design Index 'MAN Engineering the Future - since 1758. MAN Diesel & Turbo

MAN Diesel & Turbo is the world’s leading provider of large-bore diesel engines and turbomachinery. Our portfolio includes two-stroke and four-stroke engines for marine and stationary applications, turbochargers and propellers, as well as gas and steam turbines, compressors, and chemical reactors. Our commitment to minimizing fuel consumption while meeting even the most advanced emissions regulations plays a vital role in safeguarding the environment for future generations. We are seeing unprecedented climate change threaten our vital, yet fragile ecosystems. The knock-on effects of rising...

Energy Efficiency Design Index IMO regulations in a nutshell Ships commissioned after January 1, the latest updates, RoRo, RoPax, Cruise The EEDI is used to calculate a vessel’s Ships with diesel-electric propulsion energy efficiency. This is based on a have to meet the requirements. Older and LNG carriers with diesel-mechanic complex formula, taking the ship’s vessels are only affected by the EEDI or diesel-electric propulsion have to emissions, capacity, and speed into standards if they have undergone a meet the limits of the required EEDI. account. The lower a ship’s EEDI, the major...

EEDI Spells Efficiency Definition and application Required EEDI New ships from 1/1/2013 Not in accordance with IMO regulations Reference line In accordance with IMO regulations Required EEDI The EEDI assesses the energy con- tained EEDI of a ship and depends on sumption of a vessel under normal its type and size. Starting with a base- seafaring conditions, taking into ac- line value in 2013, the limit will be re- Relevant energy consumption The required EEDI is the limit for the at- count the energy required for propul- duced successively in three stages until sion and the hotel load for...

MAIN ENGINE AUXILIARY ENGINE SHAFT GENERATOR/MOTOR EFFICIENCY EMISSIONS EMISSIONS EMISSIONS TECHNOLOGIES TRANSPORT WORK Engine power (P) Ship design parameters Correction and adjustment factors (F) Individual engine power depending on application (e.g. PME = 75% Maximum continuous rating for diesel-mechanic propulsion) Ship speed at reference conditions (see PME defintion, etc.) Main engine power reduction due to individual technologies for mechanical energy efficiency Deadweight tonnage (DWT) rating for bulk ships and tankers; a percentage of DWT for container ships; DWT indicates how much...

Meeting the EEDI Requirements Optimized engines, components, and engine systems Only ships fitted with state-of-theart technology will stand a chance of complying with the EEDI. This is where MAN Diesel & Turbo steps in as a competent partner to industry. Our comprehensive range of solutions – including engines, turbochargers and propellers – reflects the high standards that have made us a market leader across the seven seas. Banking on efficiency Burning liquefied natural gas (LNG) produces less CO2 than other conventional sources, making it a powerful alternative in achieving a...

Meeting the EEDI Requirements Optimized engines, components, and engine systems Various solutions on the market today – and how they can be combined Post swirl fins Post swirl fins Rudder bulb Kappel PBCF AHT nozzle Rudder bulb Mewis duct Pre swirl fins Efficiency rudders Mewis duct Can sometimes be partially combined Efficiency rudders Clever in combination Enhance your vessel with one or more of the many MAN Diesel & Turbo products designed to boost energy efficiency. Take, for example, our robust Kappel propellers: used in combination with a rudder bulb, they contribute to ultimate ship...

Efficiency in Action Attained versus required EEDI Container ship DWT design draft 15,375 t ME 11,200 kW (MAN B&W 8L58/64) AE 4 x 1,720 kW (MAN 8L21/31) Generator efficiency 93  % Speed 19 knots Diesel    as Oil, ISO 8217, DMC – DMX /G Requirement container ship Attained EEDI Required EEDI Compliance index Reference line All variations are only achieved by changing the main engine characteristics. Attained EEDI: 18.06 (with engine MAN 9L51/60DF; 9,000 kW and 18 knots) Attained EEDI: 24.28 (with engine MAN 7S50ME-B8, two-stroke) Attained EEDI: 21.06 (with engine MAN 7S50ME-B8, two-stroke and...

Efficiency in Action Attained versus required EEDI DWT design draft 7,900 t ME 3,360 kW (MAN 6L32/44CR) AE 1 x 1,290 kW (MAN 6L21/31) Generator efficiency 93  % Speed 13.3 knots Diesel    as Oil, ISO 8217, DMC – DMX /G Attained EEDI Attained EEDI: 14.24 Required EEDI Compliance index Calculation ref. Reference line All variations are only achieved by changing the main Attained EEDI: 13.84 (with engine MAN 9L27/38; 3,060 kW and 185 g    Wh SFC*) /k Attained EEDI: 12.64 (using MAN 6L35/44DF)

All data provided in this document is non-binding. This data serves informational purposes only and is not guaranteed in any way. Depending on the subsequent specific individual projects, the relevant data may be subject to changes and will be assessed and determined individually for each project. This will depend on the particular characteristics of each individual project, especially specific site and operational conditions. Copyright © MAN Diesel & Turbo. D2366498EN-N3 Printed in Germany GGKM-AUG-07162 MAN Diesel & Turbo 86224 Augsburg, Germany Phone +49 821 322-0 Fax +49 821 322-3382...