Post on 01-Apr-2015
transcript
1
November 2013
The Royal Institution of Naval Architects ‘13 President's Invitation Lecture
“Shipping today, more Efficient & Cleaner”
2
• Francesco Bellusci
• Managing Director of Scorpio Ship Management s.a.m.
• SSM is the technical arm of Scorpio Group responsible for ships in operation, new buildings and new projects.
About the Speaker
Invitation Lecture | November 2013
3 About Scorpio Group
Invitation Lecture | November 2013
Global Footprint
(NBs orders concentrated in 1 year time, figures are ever changing)
• 27 tankers at sea
• Approximately 100 tankers ordered
• Approximately 50 dry bulkers ordered
• Control of larger number of vessels through the commercial pools
NBs orders concentrated in 1 year time, figures are ever changing
4 Scorpio’s Key Strength
Invitation Lecture | November 2013
Half a century of presence in shipping
Interpretation of market opportunities post crisis
Use of solid financial instrument
Strong management commitment driven by passion
Robust industrial plan
5 Key Sections of Discussion
Invitation Lecture | November 2013
I. Market Situation
II.Shipping opportunities for a more efficient and cleaner environment
6
• Financial players
• High Freight/Fuel cost ratio
• Weak emission regulatory framework
• A small propeller coupled with higher speed engine fit the purpose
• No scope for naval architect’s intervention
I. Market Situation : Historical
Invitation Lecture | November 2013
7
• Finance became selective with interest in solid industrial plans only
• Low Freight/Fuel cost ratio
• Strong emission regulatory framework (EEDI, EEOI, ECA, Tier III, SEEMP, MBI knocking at door)
• Reduced consumption/emission matters
• Variety of opportunities for naval architects
I. Market Situation : Current
Invitation Lecture | November 2013
8 Key Sections of Discussion
Invitation Lecture | November 2013
I. Market Situation
II.Shipping opportunities: For a more efficient and cleaner environment
9
• New building costs collapsed at 2002 price level
• New building yards open to discuss radical changes to specification
• Investment in fuel efficiency; a necessity for survival and a regulatory requirement, hence cleaner solutions became an opportunity
II. Shipping opportunities: Overview
Invitation Lecture | November 2013
10 II. Shipping Opportunities: Eco Benefit
Invitation Lecture | November 2013
• Low cost• Higher Revenue• Lower Opex• Stakeholder’s preference for lower emissions
11 II. Shipping opportunities: Eco Ship Differentiators
Invitation Lecture | November 2013
1. Fuel efficiency
2. Energy management
12 II. Shipping opportunities: Eco Ship -> Fuel Efficiency
Invitation Lecture | November 2013
Hull form
Propeller
Main engine
Hull roughness
Fuel efficiency devices
13 II. Shipping opportunities: Eco Ship -> Fuel Efficiency
Invitation Lecture | November 2013
Hull form
Propeller
Main engine
Hull roughness
Fuel efficiency devices
• Reconsideration of main dimensions and service profile
• Service speed, block coefficient, bulbous bow
• LCB position/form factor, wave resistance, wake fraction
14 II. Shipping opportunities: Eco Ship -> Fuel Efficiency
Invitation Lecture | November 2013
Hull form
Propeller
Main engine
Hull roughness
Fuel efficiency devices
Rw/Rt % decreases → entrance angle increases, bow volume increases, Lcb moves forward, lower friction resistance, better wake field aft
15 II. Shipping opportunities: Eco Ship -> Fuel Efficiency
Invitation Lecture | November 2013
Hull form
Propeller
Main engine
Hull roughness
Fuel efficiency devices
Va = Vsx (1-w)
Lower and stable wake fraction positively influences propeller efficiency and reduce noise and vibration
16 II. Shipping opportunities: Eco Ship -> Fuel Efficiency
Invitation Lecture | November 2013
Hull form
Propeller
Main engine
Hull roughness
Fuel efficiency devices
• Higher diameter→ higher efficiency
• Ae/Ao, improved cavitation design moving out from standard wing profiles
• Tip rake or winglet for limiting the tip vortex effect
• Modification of radial pitch/area distribution (skew, 3 blades)
17 II. Shipping opportunities: Eco Ship -> Fuel Efficiency
Invitation Lecture | November 2013
Hull form
Propeller
Main engine
Hull roughness
Fuel efficiency devices
Better distribution of areas where ↑ efficiency increases
Tip rake on pressure side →
Wing profile fine tuned for improved ← cavitation
18 II. Shipping opportunities: Eco Ship -> Fuel Efficiency
Invitation Lecture | November 2013
Hull form
Propeller
Main engine
Hull roughness
Fuel efficiency devices
Moving along constant ship speed curve toward lower revs/higher propeller D, the power requirements decreases due to overall higher efficiency of the propulsion system
19 II. Shipping opportunities: Eco Ship -> Fuel Efficiency
Invitation Lecture | November 2013
Hull form
Propeller
Main engine
Hull roughness
Fuel efficiency devices
• Balance between lower SFOC and lower revs
• Electronic control (injection timing and injection profile)
• Engine tuning (ECT, EGB, VTA) and type (gas engine/scrubber) depending by service profile and percentage in ECA
20 II. Shipping opportunities: Eco Ship -> Fuel Efficiency
Invitation Lecture | November 2013
Hull form
Main Engine
Main engine
Hull roughness
Fuel efficiency devices
Selection of proper engine tuning basis service profile including percentage in ballast as opposed to laden might improve SFOC by 5 g*kW/hr (3%)
21 II. Shipping opportunities: Eco Ship -> Fuel Efficiency
Invitation Lecture | November 2013
Hull form
Propeller
Main engine
Hull roughness
Fuel efficiency devices
• Silyl acrylate, Biocide free, Low friction post silyl acrylate
• Friction resistance account for 65% of total resistance for large low speed tankers
• Target reduction of hull roughness to below 50 microns and the maintenance of it through the 5 years service life
22 II. Shipping opportunities: Eco Ship -> Fuel Efficiency
Invitation Lecture | November 2013
Hull form
Propeller
Main engine
Hull roughness
Fuel efficiency devices
• Duct
• Pre/post swirl device
• Full spade rudder
• Rudder bulb
23 II. Shipping opportunities: Eco Ship -> Energy Management
Invitation Lecture | November 2013
• Ship/speed efficiency control
• Trim adjustment
• Frequency controllers
• Waste heat recovery
• Selection of highly efficient energy process
• Virtual arrival
• Weather routing
24 Overall Results and Conclusions
Invitation Lecture | November 2013
Global Footprint
(NBs orders concentrated in 1 year time, figures are ever changing)NBs orders concentrated in 1 year time, figures are ever changing
-16.38% -31.40% -22.38%
-15.50%
-29.39% -30.35%
-1.00
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
8.00
HMD MR SPP MR HMD new MR HMD HMAX 1A HSHI LR2 DSME LR2
STI prospective energy efficiency design index versus IMO required
Attained EEDI
Required EEDI
Saving %
Efficiency of Transportation
CO2 Emission Reduction
25 Overall Results and Conclusions
Invitation Lecture | November 2013
Global Footprint
(NBs orders concentrated in 1 year time, figures are ever changing)NBs orders concentrated in 1 year time, figures are ever changing
0.00
5.00
10.00
15.00
20.00
25.00
30.00
35.00
12.5 13 13,5 14 14,5 15
Design I 29.36 tons/day at14.5 knots incl 15%SMDesign II -10.50%
Design III -16.61%
Design IV -17.45%
Consumption comparison amongst MR
• EEDI limit
• Real fuel saving from a 2011 efficient design
26
www.scorpiogroup.net
20 20 (20% emission reduction by 2020) was considered
mission impossible
For Scorpio it is a job done
Thanks