innovative access systems - stabilized platform on high speed … · 2020. 4. 24. · stefan schulz...

Stefan Schulz BALTEC Offshore, Lübeck www.baltec.de 1

Innovative access systems - Stabilized Platform on High Speed Catamarans

A new approach from BALTEC

Workshop

Low Cost Development

& Maintenance

Session „synergy between E&P and Wind“ Marine access & accommodation

Source: alpha ventus Source: wintershall




Wind Farm Transport Examples

25m Swath

Source: A&R Helicopter service

Souce: Wiking

17m Standard CTV

Source: South Boats

The new Baltec A240

Lightweight Catamaran

with lowest fuel consumption

designed with open foredeck

and Rolling Jack on stern

Source: Otto Wulf




1200

900

2600

1100

780600

1500

700

0

500

1000

1500

2000

2500

3000

17m Al Cat Baltec A240 A&R SWATH Heli S76 C

Lit

er

fuel

Fuel Roundtrip 60 Nm off Fuel Roundtrip 20 Nm off

The main cost factor: Fuel consumption

Cannot

waiting




9

32 2613 8 8

2 29

41

6780

8896 98 100

0

20

40

60

80

100

120

0-0,5 0,5-1,0 1,0-1,5 1,5-2,0 2,0-2,5 2,5-3,5 3,5-4,5 4,5+

perc

en

t o

f o

ccu

ran

ce

Percentage sign. wave hight culminative percentage Helicopter

Service

Source : BSH Fino1

avai

lab

ility

(%

)

Offshore Wind Access - Performance Limits

monohulls or

small multihulls Swath or catamarans

with transfer systems

9

3226

13 8 82 2

9

41

67

8088

96 98 100

0

20

40

60

80

100

120

0-0,5 0,5-1,0 1,0-1,5 1,5-2,0 2,0-2,5 2,5-3,5 3,5-4,5 4,5+

perc

en

t o

f o

ccu

ran

ce

Percentage sign. wave hight culminative percentage




Problematic: State of the art

on Offshore WEC-access

Source : Maritime Journal

Limit of this procedure is a sign. wave height

of approximately 1.0 m sign.




Access Systems for more safety

Turbine Access System

Source : Ampelmann Operations B.V.

MOTS Ampelmann

Source : momac Source : BMT Nigel Gee

Source: Baltec

The new Access concept:

Rolling Jack on the Baltec

A240 lightweight catamaran




More seastate – The safety concern

Source: YOU TUBE / NDR




Rolling Jack - the new Access Concept: Eliminate the seastate concern

rolling jack concept Compensation of platform

in roll, pitch and heave rolling fender concept

vessel controlled in surge and sway

Source: Baltec




Rolling Jack - The New Access Concept: Rolling Jack & Rolling Fender

basic principle:

Source: Baltec




OceanRunner Design with Stern landing

Baltec 240, 24x8m, 25kn max. / Deckload 5to

Save access up to 2,5m sign. Waves




Standard Design with Bow landing

Baltec 240V, 24x8m, 23kn max / 750kw

Save access up to 2,0m sign. Waves




Cost Benefits Rolling Jack & Rolling Fender Investment:

Rolling Jack + Rolling Fender free on board ≈ 800.000 € - 1.000.000 €

Vessel requirements:

No special ship required Best Benefits on light weight ships

Operation cost over all:

Low maintenance costs No specific personnel needed




Prospects Rolling Jack & Rolling Fender

onshore experiments & tests completed sea trial performed currently prototype admission is expected next spring new refitting design is planned

additionally we are looking for new cooperation and new applications




-Thanks for your attention-

Source: alpha ventus Source: wintershall

innovative access systems - stabilized platform on high speed … · 2020. 4. 24. · stefan schulz...

Documents