Hightech Afloat Efficiency in Ship Design Gijs Streppel MSc. Sales & Design Department
23 September 2013
Meyer Neptun Group
2
Family Meyer
Bernard Meyer
23 September 2013
One shipyard – two locations
3
Copenhagen
Rostock
Hamburg Papenburg
Amsterdam
Warsaw
Berlin
London
Brussels
Cologne
Frankfurt
Prague
Paris Munich
Vienna
23 September 2013
Neptun Werft Rostock
4
23 September 2013
Meyer Werft Papenburg
5
23 September 2013
Current Orderbook
6
Cruise ships
River cruise ships
Ships: 36 (+6)
Ships: 32 (+14)
Gas tankers
Island ferries
Ferries / Cruise ferries
Ships: 56
Ships: 29
Ships : 32
Passenger ships
Livestock carriers
Container ships
Ships: 24
Ships: 27
Ships: 4
Research ships
Ships: 0 (+1)
23 September 2013
Regulatory | Sulphur reduction
7
23 September 2013
Regulatory |Emission Controlled Areas (ECA)
8
Source: DNV
23 September 2013
Exhaust gas cleaning
9
• Scrubber | wet systems • Up to 97% SOx reduction • Cleaning of exhaust gasses with sea water and chemicals • 1-5% of engine power consumption • >80% of order book equiped with scrubber
• Scrubber | dry systems • Up to 97% SOx reduction • Absorbative material like calcium hydroxide CaOH2 needed • 1-3% of engine power consumption
• Catalyst • Catalyst reduces NOx, only possible with dry scrubber due to exhaust temperature • 1-3% of engine power consumption 23 September 2013
Electrical power demand with propulsion
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Electrical power demand on a cruise vessel including propulsion in % Figures are based on an average of a complete cruise
23 September 2013
Itinerary planning
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• Careful planning of voyage • Keep ship speed at same level Example • New York – Nassau → 950 nm • Ship: 23 kn, 32,000 kW • 48 h time according to itinerary
Alternative 1 • 38 h, speed 23 kn • 10 h, speed 7.6 kn • Fuel consumption 220 t
Alternative 2 • 38 h, speed 21 kn • 10 h, speed 15.2 kn • Fuel consumption 170 t
22% fuel saving 23 September 2013
Hull form optimization
12
• Potential Flow CFD calculations • Early design stage: • Getting an insight of areas for possible improvements • Getting an insight of possible design limitations (hard points)
• Close to contract: • Parametric model to calculate several 1000 hull shapes • Hard points fixed for optimization • Potential flow CFD as judgement for every single shape • Judgement of best result by experience of naval architect
• RANSE CFD calculations 23 September 2013
Hull form optimization
13
• Optimization of appendages • Only possible with RANSE CFD • Position and form of brackets to reduce disturbance of propeller inflow • Use of twisted rudder to regain rotative energy • Form of pod housing • Turning direction of stabilizers
23 September 2013
Hull form optimization
14
• Model testing • Resistance due to water:
• Calm water efficiency • Efficiency in operational conditions • Resistance due to wind: • Manoeuvring capability • Passenger comfort
23 September 2013
Electrical power demand without propulsion
15
Electrical power demand on a cruise vessel without propulsion in % Figures are based on an average of a complete cruise
23 September 2013
Climate control | Energy consumption
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Comparision energy consumption for cabin systems
115%
120
120%
100% 90%
100
80
60
40
20
0 Single duct
Single duct el. Reheat
Double duct
Fan coil unit
23 September 2013
Climate control | Energy recovery
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Comparision energy consumption for energy recovery options in % 100% 100 90
78% 80
64%
70
53%
60 50 40 30 20 10 0 100% outside air
70% outside air
50% outside air
HRW*
*Efficiency will be reduced during lifetime
23 September 2013
Climate control | Energy recovery
18
• Absorption refrigeration unit: use of heat to make „cold“
23 September 2013
Electrical power demand without propulsion
19
Electrical power demand on a cruise vessel without propulsion in % Figures are based on an average of a complete cruise
23 September 2013
Lighting optimization
20
• Dimming to 80% not visible with human eye • Use of energy saving lights like LEDs • Programming of light intensity • Motion sensors
Hotel load / lower berth Schiffe: 4 23 September 2013
Alternative power
24
• Solar panels • 470 m² installed on Celebrity Solstice Class
• Fuel cells • Under investigation • Still too big, too heavy and to expensive for too less power • High power cells not available for maritime use
• Dual fuel • Already in use on e.g. local ferries and freight vessels • Designs for cruise vessels available 23 September 2013
Coral Energy | Dual Fuel
25
• Optimized for trade • LNG fuelled from own cargo tanks 1x Wärtsilä 8L50DF main engine 2x 6L20DF aux. generators Fuel Gas Plant Boil off of cargo used as fuel
3 Type C bilope tanks 15,600 m³ capacity
23 September 2013
Concept cruise vessel with LNG
26
23 September 2013
Thank you! Sales and Design Department, 23 September 2013
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