Ship Efficiency by STG Next Conference on Ship Efficiency
Hamburg, 23-24 September 2019

2009 Programme

28th September 2009


Welcome by Hermann J. Klein

President of STG and
Iwer Asmussen
Executive Secretary of STG

Ship Operation and Ship Design

chaired by Fred Deichmann, Columbus Shipmanagement GmbH, Hamburg/Germany

Fuel Efficiency Versus Safety in Ship Design PDF of powerpoint presentation

  • Main dimension restrictions vs. fuel efficiency
  • Optimization of designs for specific operational profiles
  • How much fuel is safety allowed to cost?

Heike Billerbeck, Flensburger Schiffbau-Gesellschaft, Flensburg/Germany


Energy Efficiency Design Index – EEDI Extended Summary PDF of powerpoint presentation

  • Principles
  • Base line definitions
  • Application consequences

Stefan Krüger, Technische Universität Hamburg-Harburg, Hamburg/Germany


Coffee break


Cost Savings by Hydrodynamic Measures Extended Summary PDF of powerpoint presentation

  • Reduction of speed
  • Trim optimization
  • Power saving devices incl. new developed pre-swirl duct

Jan Svardal, Grieg Shipping Group, Bergen/Norway; Dipl.-Ing. Friedrich Mewis, MSH, Dresden/Germany


Report from the Frontline of Energy Efficiency; Brief Summary of the
A.P. Møller-Mærsk Energy Efficiency Initiatives with-in: PDF of powerpoint presentation

  • Ship design
  • Retrofit
  • Performance management
  • Operational optimization

Ole Graa Jakobsen, Mærsk Maritime Technologies, Copenhagen/Denmark


Practical Approach to Achieve Cost Efficient Ship Operation Extended Summary PDF of powerpoint presentation

  • Commercial aspects of voyage planning, execution, performance and scheduling
  • Hydrodynamics
  • Bunker management
  • System tuning and efficient system operation – main engines, aux. engines, consumers
  • Management and organizational embedding of the above

Rolf Ole Jensen, DNV Maritime Solutions, Høvik/Norway




A Holistic Approach to Reduce Ship Operation Costs Extended Summary PDF of powerpoint presentation

  • Saving potential in resistence and propulsion
  • Saving potential in mainengine and auxiliaries
  • Saving potential in onboard consumers
  • Saving potential in operations

Volker Höppner, FutureShip GmbH, Hamburg/Germany


A CO2 Maintenance Index for Ships (hull and propeller performance) Extended Summary PDF of powerpoint presentation

  • Optimal intervals for hull / propeller husbandry
  • Establish when to spot blast versus full-blasting of hulls
  • Setting fleet targets for hull and propeller performance (CO2 reduction metrics)

Daniel Kane, Propulsion Dynamics Inc., Long Beach/USA


Coffee break


Ship Service Performance PDF of powerpoint presentation

  • Ship performance monitoring; how to measure the correct parameters and challenges faced in accuracy
  • Ship in service performance analysis; reducing the scatter in the performance monitoring results
  • Fouling and its effect on ship performance
  • How to save fuel using performance monitoring and analysis results

Thijs Hasselaar, MARIN, Wageningen/The Netherlands


Shipboard Weather Routing – Operational Benefits Extended Summary PDF of powerpoint presentation

  • Prevention of Damages
  • Hull response monitoring
  • Efficient ship scheduling
  • Experience and further developments

Helge Rathje, Germanischer Lloyd AG, Hamburg/Germany


Increased Efficiency by Crew Training Simulation PDF of powerpoint presentation

  • Training on new engine types
  • Pre-boarding training for maneouvring very large container vessels
  • Training for efficient tanker operation incl. STS activities

Heinz Kuhlmann, MTC, Marine Training Center, Hamburg/Germany


Conference dinner with keynote speaker

Fritz Vahrenholt, RWE Innogy GmbH, Essen/Germany

29th September 2009

Future Fuels and Efficient Power

chaired by Hans Jakob Gätjens, Bureau Veritas S.A., Hamburg/Germany

Gaseous Fuels – Operational Aspects PDF of powerpoint presentation

  • Dual fuel or pure gas engines?
  • Efficiency and exhaust gas emissions of gas driven engines
  • Power supply: cold ironing or gas driven engines?

Oskar Levander, Wärtsilä Ship Design, Helsinki/Finnland


Gaseous Fuels – Safety Aspects Extended Summary PDF of powerpoint presentation

  • Safe operation of gas engines on board of ships
  • Risk analysis for gas terminals and bunkering
  • New rules and regulations

Bruno Dabouis, Bureau Veritas, Paris/France


Use of Wind Energy Extended Summary PDF of powerpoint presentation

  • Potential of the sky sail system
  • First operational results
  • Future developments

Stephan Brabeck, SkySails GmbH & Co. KG, Hamburg/Germany


Coffee break


4 Stroke Engines – Efficiency and Exhaust Emissions Extended Summary PDF of powerpoint presentation

  • New developments to cover new regulations
  • NOX reduction by internal measures
  • External exhaust gas treatment

Klaus Wirth, Caterpillar Motoren GmbH & Co. KG, Kiel/Germany


2 Stroke Engines – Efficiency and Exhaust Emissions Extended Summary PDF of powerpoint presentation

  • New developments in order to cover new exhaust gas regulations
  • Gaseous fuels in 2 stroke engines?
  • Low sulphur fuels – a problem in operation

Niels B. Clausen, MAN Diesel A/S, Copenhagen/Denmark


Energy Efficient Engine Room Ventilation Extended Summary PDF of powerpoint presentation

  • Saving potentials
  • Fan selection strategies
  • Retrofit
  • Recommended measures

Karsten C. Witt, Witt & Sohn AG, Pinneberg/Germany


Heavy Fuel Oil for Marine Engines – Fuel Additive Option for Quality Improvement Extended Summary PDF of powerpoint presentation

  • Quality issues in HFO
  • Role of fuel additive
  • Case studies of additive use on land based marine engines in India

Suresh Shemoi, Neo Pecton, Mumbai/India


Farewell buffet

Conference language


The German Society for Maritime Technology, Schiffbautechnische Gesellschaft e.V. Imprint