LNG conversions

Marine Engines,
Experience w LNG tanks
Robert Løseth
SVP Propulsion and Engines, Merchant
© 2013 Rolls-Royce plc
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than that for which it is supplied without the express written consent of Rolls-Royce plc.
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such information, which must not be taken as establishing any contractual or other commitment binding upon Rolls-Royce plc or any of its subsidiary or
associated companies.
Trusted to deliver excellence
Rolls-Royce Marine gas engines
ELECTRIC PROPULSION
Fjord1 - “Bergensfjord” (2 x KVGS-12G4 + 2 x KVGS-16G4)
Fjord1 - “Fanafjord” (2 x KVGS-12G4 + 2 x KVGS-16G4)
Fjord1 - “Raunefjord” (2 x KVGS-12G4 + 2 x KVGS-16G4)
Fjord1 - “Mastrafjord” (2 x KVGS-12G4)
Fjord1 - “Stavangerfjord” (2 x KVGS-12G4)
Fjord1 - “Tresfjord” (1 x C26:33L9AG + 1 x BRM-6 (diesel))
Fjord1 - “Boknafjord” (3 x C26:33L9AG + 1 x C25:33L9LACD (diesel)) w AZP propulsion
Coral Methane 2 x KVGB-12G4 + 2 x B32:40L8A (MFO/HFO)) & propulsion
Island Offshore 2(UT776 CDG) @ 2 x C26:33L9AG + 2 x C25:33L6A CD & propulsion
Bergen Tankers 2 x C2633L6AG
Boreal Transport 2 x 1xC2633L6AG
Retrofit
Retrofit
Rolls-Royce Marine gas engines
MECHANICAL PROPULSION
Torghatten “ferry 1” (1 x C26:33L9PG) & propulsion
Torghatten “ferry 2” (1 x C26:33L9PG) & propulsion
Torghatten “ferry 3” (1 x B35:40V12PG) & propulsion
Torghatten “ferry 4” (1 x B35:40V12PG) & propulsion
NSK Shipping (1 x C26:33L6PG) & propulsion
RRM Eidsvåg Shipping 1 x C26:33L9PG & propulsion
Sea Cargo “vessel 2 x(1 x B35:40V12PG) hull 357 -8 & propulsion
Fjord Line 2 x 4 x B3540V12PG & Promas propulsion system & ACON
Norlines TBN NVC design, 2x1xBL35:40L9PG & propulsion
Bukser & Bergning 2 x 2 x C26:33L6PGas + 2 x Aquamaster US35CP system
Retrofit
Ulvan Rederi 2 x 1 x C26:33L9Pgas
CNOOC 2 x 2 x C26:33L9PGas + 2 x Aquamaster US255CP
Product portfolio - Engine Range
C25:33 engine (2002-)
C26:33 engine (2010-)
4
B32:40 engine (2001-)
B35:40 engine (2003-)
1840 - 3000 kW
Output
1400 - 2500 kW

Output
2765 - 8000 kW

Output
2625 - 9600 kW
Bore x stroke
250 x 330 mm
Bore x stroke
260 x 330 mm

Bore x stroke
320 x 400 mm

Bore x stroke
350 x 400 mm
Speed range
900 - 1000 rpm
Speed range
900 - 1000 rpm

Speed range
720 - 750 rpm

Speed range
720 - 750 rpm
BMEP
22.2 - 26.7 bar
BMEP
18,2 bar

BMEP
24.9 bar

BMEP
20 bar
MDO, HFO
Fuel types
Natural Gas LNG

Fuel types
MDO, HFO

Fuel types
Natural Gas, LNG

Propulsion and Gen.set applications
Inline:
6-8-9
V type:
12-16

Propulsion and Gen.set applications
In line type:6-8-& 9
Vee type : 12-16-20
1176 B engines sold
212 B gas engines sold
Output
Fuel types
Propulsion and Gen.set applications
Inline:
6-8-9
499 C engines sold
Rolls-Royce data-strictly private
Propulsion and Gen.set applications
Inline:
6-8-9
26 C gas engines sold
Worlds first shaft driven Cargo Vsl on LNG
Dual fuel ship – Single fuel engines
Boknafjord – entered into service
Bukser og Berging at Sanmar
A success story
Rolls-Royce data-strictly private
Bukser og Berging at Sanmar
M/S Stavangerfjord & Bergensfjord
Time pressure
-Design Coordination
Contract Signature: Summer 2012
Product Delivery: End of 2012
-Class Approval
Ventilation
System
System integration
-Ventilation System
-Automation System
-LNG Heating System
-Piping
At Hirstshals
Automation
System
Fuel Gas
System
(RR scope)
LNG
Heating
System
Piping
M/S Stavangerfjord – Rolls-Royce Scope
Promas
Gas Engines
M/S Stavangerfjord – Rolls-Royce Scope
Promas
Gas Engines
LNG fuel system
Vsl Control
system, IAS
Passenger Ferry - capacity 1500
Vehicle capacity 600
Number of cabins 306
First international ferry powered solely by
LNG
PBU
contained
in TCS
Rolls-Royce – Fjordline RoPax
Average mechanical efficiency exceeding
50% (ISO)
Additional efficiency due to steam driven
waste heat generator providing addional 5%
electric power on the same fuel input.
Additional 5% efficiency achieved by
PROMAS (proven in model test), and verified
in speed achievement at sea trials.
Mechanical propulsion avoiding ca 10%
electrical losses in transmision of power to
the propellers.
Consequently awarded ”most environmental
vessel” at Norshipping 2013.
Engine
type
Engine
no.
B35:30 V12PG 19002
M
ISO
e
Specific
ISO
Power a
Heat
Efficienc
Output s
Consump
y
kW
u
tion
%
r
kJ/kWh
e
5 259
7 297
49,3 %
5 258
7 303
49,3 %
5 250
7 236
49,7 %
B35:30 V12PG 19003
5 249
5 249
5 250
7 200
7 210
7 147
50,0 %
49,9 %
50,4 %
B35:30 V12PG 19004
5 395
5 396
5 396
7 179
7 202
7 171
50,1 %
50,0 %
50,2 %
B35:30 V12PG 19005
5 385
5 408
5 390
7 248
7 214
7 184
49,7 %
49,9 %
50,1 %
B35:30 V12PG 19006
5 402
5 424
5 412
7 259
7 217
7 196
49,6 %
49,9 %
50,0 %
B35:30 V12PG 19007
5 400
5 412
5 403
7 214
7 176
7 154
49,9 %
50,2 %
50,3 %
B35:30 V12PG 19008
5 399
5 391
5 395
7 166
7 197
7 194
50,2 %
50,0 %
50,0 %
B35:30 V12PG 19009
5 413
5 404
5 414
7 147
7 164
7 138
50,4 %
50,3 %
50,4 %
B35:30 V12PG 19010
5 403
5 409
5 405
7 278
7 258
7 220
49,5 %
49,6 %
49,9 %
B35:30 V12PG 19011
5 381
5 401
5 398
7 202
7 169
7 149
50,0 %
50,2 %
50,4 %
16
Strictly Private and Confidential
17
6.200 cbm LNG Carrier





Boil off at 0,32% per day
Vessel propulsion fueled by boil-off gas
LNG -163 degrees on arrival
Very high cbm per ship size
Low fuel consumption (151 g/kwh)
Bergen Gas 1500-5600 Kwh
PTI/PTO 400-4000kW / PTO 2400kW
PROMAS
AFE
18
LNG logistics / bunkering vsls
Volume
Utilisation w
IMO A tank
LNG = 0,45t/cbm
LNG fuel tank
tested in Bergen
LNG tank issues and improvements made
Issue
Consequences
Remedy
Valve leakages
Delay of commissioning Specification of type,
make & spares
Dirt in fuel system
Damage to gas valves,
and delays during
commissioning
Cleaning procedures,
and online filters in
system
Fatigue calculations,
and general late
calculations
Time-consuming and
expensive delays
Clear procedures and
engineering
qualifications
Pressure drop due to
sloshing of cold LNG
Uncertainty in
operation, reduced
engine power
Increase PBU capacity,
Improve LNG control or
pump
Feedback sensors fail
Reduced power output, Improved sensor
wrong engine settings design on shaft
Interface issues
Difficult resolution
process
One experienced
supplier
19
20
Clean engine
crankcase ….
25000 running hrs
Rolls-Royce data-strictly private
Still clean engine
crankcase ….
42000 running hrs
Rolls-Royce data-strictly private
21
22
Piston withdrawal.
42000 running hrs
Rolls-Royce data-strictly private
photo credit: Fiskestrand verft
Thank you