siemens: optimized concepts for loading & installing offshore wind turbines

Optimized concepts for loading &

installing Offshore wind turbines Transport & Installation for Offshore Wind | 28-30 April, 2015

Table of contents

4

Logistics / Sea-fastening 3

Transport Equipment 2

Installation Equipment

Introduction 1 Introduction 1

Introduction

Jesper Møller Senior Key Expert Offshore Installation

• Started in Bonus Energy A/S in 1998

• Lifting Specialist in 2009

• Lifting Expert in 2011

• Senior Key Expert in 2014

Currently heading

− Global Offshore lifting department

− Global competence center for lifting

Table of contents

4




Introduction 1


Transport equipment Transport equipment overview 6.0 MW

Transport Equipment Transporting systems increasing safety and

ensuring transport with less component damages

Tower transport Transport nacelle rear end

Transport frame for hub

All handling / lifting performed without touching the component

Transport equipment mounted at production facility and used until

pre-assembly / installation

Transport damages reduced to a minimum

Cost reductions and increased safety due to reduced number of

lifting operations

Only one option for lifting the components

Reduction of heavy lifts for personnel (slings, shackles etc.)

Tower transportation equipment also used for lifting

What we achieve…

Transport frame for hub

Complete nacelle at the pre-assembly site ready for functional test

Assembly of nacelle rear end, generator and hub

Mounting of turner tool

Functional test of the complete nacelle before it is shipped to site

On the pre-assembly site…

Transport Equipment The art of transporting 75 m blades from

production to site in the safest and most cost-effective way

• All equipment mounted at production site and used during

transport to pre-assembly site

• Main lifting eyes for single point lifting, i.e. lifting operations

performed only in transport equipment without touching the

component

• Friction pads on tip clamp for ensuring optimal fixation of the

blade in correct position and elimination of transport

damages

• Possible to transport blade with stud bolts and blade bearing

cover mounted from production

Transport damages reduced to a minimum

Number of handlings reduced

Reduction of heavy lifts for personnel (slings, shackles etc.)

Cost reductions and increased safety due to reduced number of

lifting operations

Blade resting in tip clamp A Frame mounted on root end

How it works…

What we achieve…

B75 transport

Transport Equipment How to move 75 m blades internally

without compromising flexibility and safety?

• Consists of two parts – root end and tip end mover

• Enables flexible blade transport at production facility / harbor

• Tuck master for root end / tip end remote controlled by technician on

ground = high maneuverability

• Cost reductions and increased safety due to reduced number of

lifting operations

Blade mover for internal transport…

Root end mover Tip end mover

Table of contents

4

Logistic/Sea-fastening 3



Introduction 1


Logistics / Sea-fastening Logistics during load-out and installation

• Single blade concept chosen to utilize the space onboard the vessel

and at the quay side in the best possible way while at the same time

allowing for higher installation wind speed

• Deck layout is prepared to allow for towers and nacelles to be

loaded using the vessel crane while blades are being loaded

simultaneously using shore cranes

• All sea-fastening is pre-installed on the installation vessel and

prepared for main components and auxiliary equipment

• Fixed platforms incl. rails and stairways for the blade rack

ensuring easy access and safe working conditions for technicians

How it works…

Logistics / Sea-fastening How to ensure safe fastening of towers while at the same time

reducing crane time and speeding up installation

• Towers secured by means of pin bolts which ensures easy and safe

mounting and demounting of the towers

• Everything is pre-mounted and the tower can be lifted directly from the

harbor to the installation ship thereby reducing crane time

• Platforms incl. rails and stairways for easy access also ensuring safe

working conditions for technicians

• Implementation of partly hydraulic sea-fastening solution has reduced

installation time even further

• The hydraulic sea-fastening is design approved by DNV

How it works…

Logistics / Sea-fastening Nacelle secured only by means of corner stoppers

ensuring shortest possible crane time

• Nacelle lifted from harbor and landed on the vessel deck where it is secured

only by means of corner stoppers (no other sea-fastening required)

• With no additional equipment needed, crane time is reduced to a minimum

• All sea-fastening is approved by the MWS

• All used equipment is returned on the empty nacelle frame

How it works…

Corner stoppers for nacelle sea-fastening

Logistics / Sea-fastening Blade rack design reducing lifts and manual handling during

load-out while at the same time easing installation

Tip end sea-fastening

Root end sea-fastening

• Blades positioned slightly offset in blade rack making it possible to

always lift the top blade for installation

• Same interface used for transport and sea-fastening at the blade root

end

• When lifting the blade onto the vessel, blade root end is secured in the

blade rack by means of a pin ensuring no uplift and no sideways

movement

• For installation, root end equipment bolts are loosened, and the blade

can be lifted directly - without demounting sea-fastening

• At the tip end, the blade is secured by means of crossed slings which

can be opened to allow for direct lifting of the blade

• All in all – crane time is reduced to an absolute minimum

How it works…

Table of contents

4 Installation Equipment

Logistic/Sea-fastening 3


Introduction 1

Installation Equipment 4

Installation Equipment Traverse system - how to increase safety while

at the same time reducing the overall installation time?

Guide wire

Tack wire

Traverse

Lifting yoke

Offshore tower Offshore Nacelle Offshore Blade

Installation Equipment How to ensure fast and safe

full tower lifts at high wind speeds?

• Gripper is designed for installation at an average wind speed of 14 m/s

• Stairways and platform integrated for safe and easy access

• Reduction of lifting brackets and loose parts improving safety and reducing

heavy lifts for technicians

• Only fiber pads touching the tower flange

• Tower cover remains mounted during lift

• Only mechanically operated - no hydraulics / electrical systems

• Traverse system enabling rotation of tower for alignment on TP, ie. no

manual handling

• Full GL approval – design, production and load test

How it works…

What we achieve…

Reduction of installation time compared to traditionally bolted lifting

brackets

No damages to towers due to fiber pads

Increased safety and improved working

environment for technicians

Installation Equipment How to safely install a 350 t nacelle 110 m above water level

• Designed for installation at average wind speed of 14 m/s

• Trunnion has the same design for all three lifting devices for our main

component lifts: tower, nacelle and yoke

• Integrated stairways for safe and easy access and preparatory work

• Three-point lift ensuring stable positioning of the nacelle

• Remote-controlled horizontal adjustment during lift

• Reduction of lifting brackets and loose parts improving safety and

reducing heavy lifts for technicians

• Full GL approval – design, production and load test

How it works…

What we achieve…

Reduction of installation time compared to other known solutions

Increased safety and improved working environment for technicians

Future-proof – designed for next generation nacelles

Installation Equipment A flexible giant enabling single blade installation

of B75 blades in average wind speed of 14 m/s

• Single blade installation in average wind speed of 14 m/s

• Dedicated sea fastening frame incl. stairways and platform

• Fully automatic - using a remote control, a technician is able to control the fixation of slings

around the blade

• Data collection allowing for documentation of all lifting operations

• Patented design

• Yaw function allowing for blade adjustments in height while maintaining tagline tension

• Active tilt function allowing horizontal adjustment during installation

• Pitch function is build into the yoke

• Full DNV approval – design, production and load test

How it works…

No working in heights and no manual

handling of slings improving safety and

reducing installation time

Preparatory work can be performed without

cherry pickers due to integrated stairways and

platform

Yaw, tilt and pitch functions allowing for

adjustment of the blade during installation

What we achieve…

Janett lifting yoke – 14 m long, 8 m high and heavy

Thank you!

Jesper Møller Senior Key Expert

Offshore Installation

Fiskergade 1

7100 Vejle

Phone: +45 30375310

E-mail:

[email protected]

siemens.com/answers

mailto:[email protected]

siemens: optimized concepts for loading & installing offshore wind turbines

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