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Content of Presentation

Seatech Engineering Ltd. 1. General Information 2. SE-601 – Coastal 3000m3 LNG Bunkering Vessel 3. LNG Bunkering Vessel – Variety of Propulsion Systems 4. Conclusions

Coastal 3000m3 LNG Bunkering Vessel – Variety of Propulsion Systems Krzysztof Czerski – Seatech Engineering 3/11/2019 Page: 2

Our history

www.seatech.com.pl

SEATECH ENGINEERING Ltd. - Engineering and ship designing company founded in 2003, as part of an international shipbuilding group PIRIOU.

PIRIOU : - Chantiers Piriou, France - PNS, France - SEAS, Vietnam - WAS, Nigeria - CNOI, Mauritius - BOPP, France - Piriou Ingénierie, France - Seatech Engineering, Poland

After management buyout in March 2018 Seatech became fully independent company (all shares in private hands).


Scope of activities / New bulildings

www.seatech.com.pl Coastal 3000m3 LNG Bunkering Vessel – Variety of Propulsion Systems Krzysztof Czerski – Seatech Engineering 3/11/2019 Page: 4

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Cooperation with KERSHIP

SE-601 – Coastal 3000m3 LNG Bunkering Vessel

PRINCIPAL CHARACTERISTICS Length over all/between perp.: 81.90/80.50 m Breadth Moulded: 16.50 m Depth to Main Deck: 7.05 m Design Draught (full load at dep.)/ Max Draught (ballast for air draught reduction): 4.00/5.00 m Deadweight at Design Draught 1 500 t Service Speed at design draught (15%SM, 75% MCR) 10.00 kn LNG Capacity (100%) 3 000 m3 Class DNVGL (or equivalent IACS)

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LNG Bunkering Vessel – Variety of Propulsion Systems

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Version No. 1. Dual Fuel - Mechanical • 2 x Wärtsilä 6L20DF (2x1110kW) • 2 x Reduction Gears • 2 x PTO (2x250kWe) • 2 x Shaft lines • 2 x Rudders and Steering Gears. • 2 x Generators (2x450kWe)

6L20DF CPP

250kWe

GE

AR

PTO

CPP

GE

AR

PTO

250kWe 6L20DF

450kWe G

450kWe G

Ship Consumers

DIS

TR

IBU

TIO

N S

WIT

CH

BO

AR

D



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Version No. 1. Dual Fuel - Mechanical


PROS CONS

Conventional system Additional generating sets for operation in terminal/harbor

High efficiency of propulsion system optimized for one service point

Low efficiency for lower load of engines

Two sets of engines means two sets of spare parts

Lower maneuverability compare with azimuth thrusters

Expensive CPPs

Additional stern thruster for crabbing

Complicated to midify if new sources of Energy come (eg. Fuel cells)


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Version No. 2. Dual Fuel - Mechanical • 2 x Wärtsilä 6L20DF (2x1110kW) • 2 x Wärtsilä WST11 azimuth thrusters • 2 x PTO (2x250kWe) • 2 x Shaft lines with Cardan joints • 2 x Generators (2x450kWe)

6L20DF CPP G

EA

R

PTO

6L20DF CPP

250kWe

GE

AR

PTO

450kWe G

450kWe G

Ship Consumers

DIS

TR

IBU

TIO

N S

WIT

CH

BO

AR

D



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Version No. 2. Dual Fuel - Mechanical


PROS CONS

Conventional system Additional generating sets for operation in terminal/harbor

High maneuverability Low propulsion efficiency

Crabbing Low efficiency for lower load of engines

Easier to adopt to new sources of Energy.

Two sets of engines means two sets of spare parts

Expensive CPPs


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Version No. 3. Dual Fuel - Electric • 2 x Wärtsilä 6L20DF (2x1065kWe) – Generating Sets • 2 x Wärtsilä WST11 azimuth thrusters • 2 x Electric motors (2x900kWe) • 2 x Variable Frequency Drive

FPP GE

AR

Variable frequency drive

El.

motor

6L20DF G

6L20DF G

FPP GE

AR

Variable frequency drive El.

motor DIS

TR

IBU

TIO

N S

WIT

CH

BO

AR

D

Ship Consumers



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Version No. 3. Dual Fuel - Electric


PROS CONS

High maneuverability incl. crabbing

More sophisticated propulsion system

No additional genets for hotel/terminal load

Additional costs for more complicated el. system

Only two DF generators able to cover propulsion and hotel/terminal loads.

Optimal load factor for main engines (one running if lower speed needed)

Fixed pitch propellers

Vessel can be work as power unit (BOG management when idling)

Easy to plug-in different sources of el. power (solar, fuel cells…)


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Version No. 4. Dual Fuel - Hybrid • 2 x Wärtsilä 6L20DF (2x1065kWe) – Generating Sets • 2 x Wärtsilä WST11 azimuth thrusters • 1 x Battery pack 450kWh • 2 x Electric motors (2x900kWe) • 2 x Variable Frequency Drive

FPP GE

AR

Variable frequency drive

El.

motor

6L20DF G

6L20DF G

FPP GE

AR

Variable frequency drive El.

motor

Ship Consumers

DIS

TR

IBU

TIO

N S

WIT

CH

BO

AR

D



www.seatech.com.pl

Version No. 4. Dual Fuel - Hybrid


PROS CONS

High maneuverability More sophisticated propulsion system

Only one DF generator running. Second - loading batteries.

Additional costs for more complicated el. system

Super-Optimal load factor for main engines (gensets tuned for one optimum load)

Additional costs for batteries

Batteries shaving peak loads Battery life cycle (approx. 7years)

Fixed pitch propellers

Vessel can be work as power unit (BOG management when idling)

Easy to plug-in different sources of el. power (solar, fuel cells…)



Assumed operation profile: • 30% sailing with service speed, • 15% maneuvering, • 20%LNG loading, • 20%LNG discharging, • 10% stand-by, • 5% idling

100%

93%

109%

130%

100% 100%

94%

84%

0%

20%

40%

60%

80%

100%

120%

140%

Version No. 1DF-Mechanical

Version No. 2DF-Mechanical

Version No.3DF-Electric

Version No.4DF-Hybrid

Investment & Annual Operation Costs

CAPEX

OPEX(Forecast)

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Finally, DF electric system (Version 3) was chosen with optional installation of batteries (DF Hybrid System – Version 4) .

Conclusions

Thank You For Your Attention

Krzysztof Czerski – Seatech Engineering e-mail: [email protected]

mobile: +48 697 077 302

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