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LNG propulsion (conversion and new-building) for short-sea.
Oslo 20 Juni 2013.Stein Ruben Larsen
Vice President System Sales and Marketing of Cargo Vessels
Agenda
Some basic knowledge New-building example Conversions example Different solutions for conversion Financial
Some basic knowledge
CO2
NOX
SOX
PARTICLES'
Tromsø Aug 2012
Why LNG ?
0,38
0
0
0,05
0,1
0,15
0,2
0,25
0,3
0,35
0,4
C-diesel C-gas
SO2 (0,1%)
598
420
0
100
200
300
400
500
600
C-diesel C-gas
CO2 (g/kWh)
8,2
1,2
0
1
2
3
4
5
6
7
8
9
C-diesel C-gas
NOx (g/kWh)
0,25
0
0
0,05
0,1
0,15
0,2
0,25
C-diesel C-gas
Particles
- 85 %
- 99,9 %
- 99,9 %
- 30 %
Vessels to be delivered in 2013/14
Ro-Ro vessel built in China for Norwegian Norlines Winner of “Next Generation Shipping Award” 2011
Case study analysis environship
Operation Diesel LNG Unit
Annual operating hours 5500 5500 hrs
Installed power 4500 3940 kW
Engine Speed 750 750 rpm
System installation cost $10m $15.25m
HFO LNG
Fuel price USD 700/ton USD 700/ton
Add. capex USD 5,25 mill
Fuel consumption 0,198 kg/kWh 0151 kg/kWh
Lube oil consumption 0,80 g/kWh 0,40g/kWh
NPV USD 466.628
IRR 28%
Conversions (to LNG propulsion)
What needs to be done ?What to chose ?To what cost ? Some examples.
What needs to be done ?
Feasibility study Age of vessel Technical issues (Space, stability, classification, redesign etc) Timeframe (technical documentation, yard capacity, off-hire) Business case (Capex, Opex, Charter-agreement)
Technical agreement Engine type LNG fuel-tank Backup-systems Scope of design-work
Yard-work and testing/verification If NOx fund sopport, testing verification period
What to chose ?
Scrubber, SCR, Low-sulphur, MDO
Type of engine Lean burn gas engine Dual fuel engine
LNG fuel tank C-type (Pressurized) A-type (Atmospheric pressure)
Backup system (PTI)
Engines
Lean burn gas engines
IMO Tier III compliant High efficiency (49%) Low fuel-consumption Good tolerance for low methane
number
Not 1A1 approved (Backup needed)
Dual fuel gas engines
IMO Tier III compliant Fuel flexibility No need for back-up
Complex High maintenance cost Sensitive for methane-number
LNG tanks
C-type Handles Boil-off Simple system (Coldbox) References as fuel-tank
Take space Expensive
A-type Space-friendly Less cost
Boil-off issue Few references as fuel-tank Need of submerged pumps
Backup systems LNG Mechanical with PTI
Gas-Electric
Cost
Between 40 and 65 MNOKDepending on:
Size of fuel-tank(s) : 2 * 250 cbm. C-Tank : 16 MNOK Engine type and power: Example : 5 MW engine: 10-15 MNOK New gearbox incl. PTI and HSG : 5 – 10 MNOK Design : 2 – 4 MNOK Yard-work : 10 – 20 MNOK ?
Conversion (Case study Pachuca)
GL classed Container feederBuilt in 2004/20058,4 MW Medium speed engineTrade: Netherland, UK, Norway Member of NOx-fund (MS Lyspoint) Subject for NOx-fund support based on
CO2 emission (reduction) in Norwegian waters
Conversion (Case study Pachuca) Possible LNG tank installation Vertical to avoid sloosh 2 tanks for stability and
redundancy Bunkering available in Norway
Conversion (Case study Pachuca)
Example of LNG tank stern placed.
MS Høydal
Conversion (Case study Pachuca)
Thank You !