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Presentation to
Fleet Officer Meeting
Fuel Cost Awareness
Manila, 30th - 31st of January, 2014
by
André Rimmel
Fuel Cost Awareness
Question:
WHY Ship Efficienicy?
2
3
Increased fuel-efficiency of vessels and main propulsion systems
Identification of consumption components
Before improvements can be implemented, sources of consumption need to be
identified.
Consumption
Design Reasons
Non-optimized
machinery design
Non-optimized hull
design
Operational
Reasons
Reasons related to
charterers (e.g.
scheduling, waiting
times at terminals
etc.)
Reasons related to
owner (e.g. voyage
execution, trim,
maintenance)
4
Design Reasons
Efficiency adjustments vs. operational
requirements - propeller and bulbous bow
optimization
•
The new bulbous bow design reduce
the form related resistance and
optimize the wave resistance for the
new operation profile.
•
The second benefit of the new bulbous
bow installation is a reduced total
resistance of the vessel which enable
additional optimization and saving
potential in way of the propeller
design.
5
Design Reasons
6
Increased fuel-efficiency of vessels and main propulsion systems
Identification of consumption components
Before improvements can be implemented, sources of consumption need to be
identified.
Consumption
Design Reasons
Non-optimized
machinery design
Non-optimized hull
design
Operational Reasons
Reasons related to
charterers (e.g.
scheduling, waiting times
at terminals etc.)
Reasons related to owner
(e.g. voyage execution,
trim, maintenance)
7
Operational Reasons
8
Operational Reasons – what parameter can we influence
Controllable Effects, e.g.:
-
Trim
Draft, Ballast
Rudder angle
Hull Condition
Engine Performance
Auxiliary systems
Routing and scheduling
Uncontrollable Effects, e.g.:
-
Wind
Waves
Water Depth
Ambient Conditions
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Operational Reasons - possible...