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Offshore Certification with TÜV Rheinland Support and Safety for a “Floating“ Project
Tokyo, February 2013
Offshore Certification with TÜV Rheinland – February 2013. 2
At Home on All Continents.
500 locations in 65 countries around the world.
Offshore Certification with TÜV Rheinland – February 2013. 3
UN Global Compact.
We are committed to the principles of the UN Global Compact. This means that we abide by a set of basic values with regard to Human rights Labor standards Environmental protection Fighting corruption We fully support these values and apply them in all we do.
Responsible actions.
Offshore Certification with TÜV Rheinland – February 2013. 4
Experts for Your Success. G
erm
any
Out
side
Ger
man
y
Offshore Certification with TÜV Rheinland – February 2013. 5
Sales Growth. G
erm
any
Out
side
Ger
man
y
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Sales by Business Streams.
Offshore Certification with TÜV Rheinland – February 2013. 7
Our Services.
More safety and quality – for your competitive edge.
Testing Inspecting Certifying Qualifying Consulting
Products Systems Processes People
Offshore Certification with TÜV Rheinland – February 2013. 8
TÜV Rheinland. Approval for Certification.
2010: Acceptance from the German Authorities (BSH) for Project Certification
2012: DAkkS Accreditation for Component- and Type-Certification
Offshore Certification with TÜV Rheinland – February 2013. 9
TÜV Rheinland. Certification Standards.
Standards
IEC 61400 series GL - Guideline for the Certification of Offshore Wind Turbines DNV Offshore Standard – Design of Offshore Wind Turbine Structures BSH Standard – Design of Offshore Wind Turbines BSH Standard – Ground Investigations for Offshore Wind Farms
Offshore Certification with TÜV Rheinland – February 2013. 10
Project Certification according to IEC 61400.
“The purpose of project certification is to evaluate whether type-certified wind turbines and particular support structure/foundation(s) designs are in conformity with the external conditions, applicable construction and electrical codes and other requirements relevant to a specific site. […] The certification body shall evaluate whether the wind conditions, other environmental conditions, electrical network conditions and soil properties at the site conform with those defined in the design documentation for the wind turbine type and foundation(s). The evaluation includes safety and quality.“
Offshore Certification with TÜV Rheinland – February 2013. 11
Project Certification according to IEC 61400.
Type Certificate
Manufacturing Surveillance
Assessment of Site Conditions
Assessment of Design Basis
Assessment of Site Specific
Design
Transport and Installation Surveillance
Commissioning Surveillance
Certificate of Conformity
Certificate of Conformity
Certificate of Conformity
Certificate of Conformity
Certificate of Conformity
Certificate of Conformity
Final Evaluation Report
Project Certificate
Operating Phase Periodic Monitoring
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Development
Verification/assessment of Site conditions
• wind conditions • geotechnical conditions • marine conditions • weather windows
Design basis • codes and standards
and their hierarchy • design parameters and
principles • support structure
concept • requirements:
manufacuring, transportation, installation, o&m, grid connection
Integrated load analysis
Project Certification along the course of the project.
Design Verification/assessment of Site-specific wind turbine design
requirements Site-specific support structure
design • design with respect to
load analysis • design with repect to
structural integrety • design documentation • plans for manufacturing,
transportation, maintenance
Implementation Manufacturing surveillance Turbine and support structure
• requirements: design documentation, test programs
• quality system of manufacturer (also sub-suppliers)
• production process • quality control
Transportation and installation • monitoring of sea-
transportation
Commissioning surveillance
Operation Operation and
maintennance surveillance in regular intervals
Separation in phases:
Project Certificate of
TÜV Rheinland
Final evaluation
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Project Certification Details. Site Assessment.
Soil Literature search Bathymetric and geophysical surveys (echo sounding, side scan sonar, seismic surveys) ⇒ Preliminary geological report
At lease one borehole and one cone penetration test (CPT) at each corner of wind farm area and in center, at least 10% of all turbine sites:
- soil profiles - soil mechanical parameters - description and assessment of foundation soil
⇒ Preliminary geotechnical site survey report
One boring and cone penetration test at each turbine site ⇒ Preliminary soil and foundation expertise
Geological report
Wind Metocean Mean still water level (MWL) Min./Max. still water level Lowest/Highest astronomical tide (LAT, HAT) ⇒ Water level conditions (short/long term) Site specific measurements “Hindcast” studies Long term statistical data ⇒ Wave conditions
Correlation between water level data and wind data
Site specific measurements Statistical data combined with flow models ⇒ Currents
Ice conditions
Other site conditions
Measurements/correlation with long-term data from local meteorological stations
- reference wind speed - normal average wind speed - wind speed distribution - wind direction distribution - turbulence intensity - wind shear
Modeling wind conditions Wind farm influence ⇒ Wind conditions
Seismicity Salinity Temperature Marine growth Air density Ship traffic Disposed matters
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Examples for Calculations.
Leading experts in the fields of static and dynamic calculations, esp. for offshore wind farms:
• Load analysis • Collision analysis • FEM calculations
Development of methods for the analysis of dynamic pile load tests in close cooperation with BAM (Federal Institute for Materials Research and Testing) SAMCEF software: comprehensive package (all-in-one) for integrated load
analysis (total dynamic calculations including soil, wave and wind); integrated calculation methods with broad acceptance
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TÜV Rheinland Project Certification. Implications.
- Confirmation
“Type-certified wind turbines and foundation designs meet requirements
governed by site-specific external conditions and are in conformity with
applicable local codes…“
- Assurance for the project – the earlier the better
As the globally independent Certification Body TÜV Rheinland
- looks closely at all aspects of the project
- keeps an overview of the progress at any time
- supports successful realization with our knowledge
- Minimization of technical risks
- Assurance for the investors
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GICON SOF.
The GICON SOF (“Floating Offshore Foundation“)
Buoyancy elements Vertical bracing Additional diagonal bracing
Background Data • Applicable from 25 to 350 meters • Modular construction, supply chain flexibility • Complete assembly at portside • Transport of the entire structure to the deployment location • Limited impact on sediment • Maintenance friendly • Entire structure can be towed into port for replacement
Offshore Certification with TÜV Rheinland – February 2013. 17
GICON SOF. Calculation Monopile vs. GICON SOF.
• operating conditions: - vw = 12 m/s - hs = 1,00 m - Ts = 4,5 s - Depth of water 18 m
(Baltic 1)
Movements of the SOF are less than movements of monopile under operating conditions
TLP vs. Monopile
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GICON SOF- HSVA* Experiments.
• Scaling after FROUDE • Scaling factor λ = 25 • Incoming flow angle 0°, 22,5° and
45° • Only wave loads • Fixed (α = 31 °; θ = 90 °) and
swimming states • Depth of water: 30 m
1:25 scaled modell *Hamburgische Schiffbau-Versuchsanstalt GmbH
Offshore Certification with TÜV Rheinland – February 2013. 19
Document Review Process. Accompanying Design Process.
No
Yes
Submission of a document e.g. reports, designs, calculations, analyses, concepts, etc.
Document review by TÜV Rheinland‘s Experts Conformity/plausibility checks
acc. to agreed on rules & standards
or
Verification in form of independent calculations
Approval?
Revision of document for resubmission
Pending until documents package complete
Package complete?
Yes
No
Client
Certificate of Conformity
Complete
Review result: Document status report
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Project Certificate.
Project Certificate Required Certificates of Conformity Final Evaluation
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TÜV Rheinland Project Certification. Conclusion.
- Project Certification on basis of international standard series IEC 61400
- Continuous monitoring by TÜV Rheinland as the global independent
Certification Body throughout all project phases guarantees continuous
quality assurance and minimizes technical risks
- Assurance for the investors
- Certification of the GICON-SOF project according to latest standards for
floating devices
- Additional steps to enhance assurance by:
- Accompanying certification of design process (early error detection)
- Preliminary quality checks
Offshore Certification with TÜV Rheinland – February 2013. 22
Yoshihiro Sugita TÜV Rheinland Japan Ltd. Global Technology Assessment Center 4-25-2 Kita-Yamata, Tsuzuki-ku Yokohama 224-0021 Mail: [email protected]
Contact:
Frank Witte TÜV Rheinland International Am Grauen Stein D - 51105 Cologne Mail: [email protected]
Andreas Puls TÜV Rheinland Industrie Service GmbH Julius-Vosseler-Straße 42 D - 22527 Hamburg Mail: [email protected]
www.tuv.com
Thank You for Your Attention.
