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1. Skibsmotorer reducerer brændselsforbruget
Carsten B. Poulsen

2. MAN Diesel & Turbo
„Engineering the Future – since 1758.“
Carsten B. Poulsen
Methodology Research Engineer
Marine Low Speed, Research & Development

3. Product Range
by Strategic Business Unit
Engines & Marine Turbomachinery Power Plants After Sales
Systems

4. Areas of Activity
MAN Diesel & Turbo in World Trade
World Trade fleet is 53.000 vessels
50% is powered by MAN Diesel & Turbo Engines!
Challenge: •Better fuel economy
•Reduced maintenance
•Remote management
•Reduced crew
•Improved reliability
•Environment compliance
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5. Areas of activity
Diesel Engine range from 450 kW to 87,000 kW
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6. Fuel Economy
What is 170g/kWh?
Marine engine efficiency is HIGH!
MAN B&W K98 Mercedes CDI
Specific Fuel Consumption (SFC): 170g/kWh 50km/l extra-urban
1g/kWh ~ DKK3000/24hrs
17km/l → 17.1km/l 15km/l → 20km/l extra-urban
Control objects:
•Charge Pressure/Air Density
•Fuel Injection Profile
•Exhaust Gas Recirculation
•Hydraulic Pressure Add Electronics and Software
•Environmental Legislation
•Engine Balance
•etc.

7. The Change Process
The process vs. workflow?
Event

8. The Change Workflow(s)
The process vs. workflow?

9. The Change Process tool support
Rational Change (Change Request)
Rational Change
(Work Package)
Rational DOORS
(Specfications)
Rational Synergy
(Artefacts)

10. Achievements
•Single Change Req. repository
•Better collaboration
•Improved perspective
•Continuous development
•SFC still to be determined

11. Gained Experiences
Processes?
All events are
managed equally by There is no workflow related
the process distinction between enhancements
and defects
The Process
determines important
activities Synergy Task concept rules
Initial phase Analysis phase Resolution phase Verification phase
Even important 1. Document the change
proposal or defect in a CR
2. Analyse the impact of
implementing the CR
Implement the selection of
CRs as scheduled
6. Verify the implementation
of the CRs
activities may be
formal or informal 3. Accept or reject the CR 7. Close the CRs
Development process
Investigation
Distinguish between Assignment phase Feasibility
Requirements specification
4. Schedule selected CRs for Functional design
Processes and Workflows
a defined release
Architectural design
Implementation design
Implementation
Keep workflows as simple as
Integration
5. Review the selection of
scheduled CRs with relevant
Testing
stakeholders
Releasing
possible

12. ?
Questions?