Our Offer
Engineering
Services
CONTEXT
The marine energy sector
- Is experiencing great growth
- Is showing large market prospects
- Is witnessing massive deployment of bottom-fixed offshore wind power in shallow waters
- Is having huge expectations in floating solutions in Spain and other countries without a continental shelf.
VALUE PROPOSITION
NAUTILUS & TECNALIA have a long track record in the field of offshore renewables by
- Supporting companies to reduce uncertainties in investing in Floating Offshore Wind Energy
- Supporting the innovation of solutions along the supply chain of Floating Offshore Wind
Wind Farm Layout definition and support on early-stage permitting, including
- Site selection and feasibility studies.
- Wind farm layout definition attending to different criteria:
- Site selection and feasibility studies.
- Wind farm layout definition attending to different criteria:
- Minimization of electrical losses
- Reduction of cable length and installation time
- Avoiding mooring and cable interaction
- Defining the optimal transmission system (HVAC, HVDC, reactive compensation)
- Support documentation for Project permitting
- Array cables alternatives
- Techno-economic feasibility studies
- Socio-economic impact
- LCA analysis
Advanced hydrodynamic modelling
Multibody hydrodynamic simulations in frequency and time domain.
Detailed evaluation of sea loads – waves and currents.
Design of validation tests at reduced scale – laboratory – and in real operating conditions.
Structural mapping of hydrodynamic loads using proprietary tools.
Hydrodynamic model and results (Motion RAO and drift force)
INTEGRATED LOAD
ANALYSIS (ILA)
- Metocean conditions interpretation & DLCs definition.
- Coupled models in OpenFast or Orcaflex.
- Model setup including tunned controller, WTG, tower, floater (with structural flexibility) and station keeping system.
- Simulation of cases using our cloud computers.
- Analysis and Interpretation of results.
Coupled model workflow
STRUCTURAL INTEGRITY CALCULATION
- Conceptual and basic design with extensive knowledge of applicable codes and regulations.
- FEM analysis for SLS, ULS (buckling), FLS and ALS.
- Fatigue life assessment using time series or frequency domain analysis.
- Modal analysis and Campbell diagrams.
- 3D models & drawings.
Pontoon scantling
Campbell diagram
Load analysis and evaluation of Station Keeping System & Dynamic cable performance
- Design and specification of mooring line systems (chain or synthetic solutions) and connection details.
- Design and specification of dynamic cable.
- ULS, ALS and FLS analysis
Synthetic station keeping system model
Engineering
Services
Conceptual design and feasibility analysis of new concepts for offshore renewables (support structure, moorings, electrical connection, etc.)
O&M based on assets digitalization.
TOOLS
CAD models
Rhinoceros- SolidWorks
Structural Analysis
Ansys Mechanical
Dynamic of Wind Turbines (ILA)
OpenFAST /OrcaFlex
In-house numerical
& analytical models
Python
Hydrodynamic
Analysis
Ansys Aqwa
Mooring / Cable Analysis /
Manoeuvring Simulations
Infrastructures
Floating laboratory in a real offshore environment (HarshLab). Owned and operated by Tecnalia.
