wind & marine energy: overview
TRANSCRIPT
Energy Research Institute @ NTU (ERI@N)
1 CleanTech Loop, #06-04 CleanTech One, Singapore 637151
Phone: (65) 6592 1786 / 2468 Fax: (65) 6694 6217
Dr. Srikanth Narasimalu
Wind & Marine Energy: Overview
Energy Smart, Research Innovation. 30th Nov 2017
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Contents
Introduction
RD&D Focus Area and Competency
Accomplishments
Highlighted Projects
Strategic Plan
Technology & Capability Building
Deployment & Outcomes
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Key Members & Resources
Srikanth
NarasimaluProgram Director/
Senior Scientist
Sridhar IdapalapatiAssoc Professor
(MAE)
Ng Yin Kwee
Assoc Professor
(MAE)
Chai Gin Boey
Assoc Professor
(MAE)
Anshuman Tripathi
Senior Scientist
(ERI@N)
Suresh Sundaram
Asst Professor
(CSE)
Dong Zhili
Assoc Professor
(MSE)
Yang Yaowen
Assoc Professor
(CEE)
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Advanced Materials & Reliability
Advanced composites, multi-functional coatings,
3D Printing & laser based surface modification,
Tribology of drivetrain.
Condition Based Operation; Aging &
Environmental effect, Structural Health
Monitoring.
Product Development
Original designs for wind / marine low flow
turbines with Grid & energy storage integration.
Wave Energy systems, Floating solar system
Compressed Air Systems & CNG systems
Computational Simulation methods
Wind & Tidal turbine farm studies – Llyods/DNV
Wind & Marine resource mapping –Adv. CFD
models (with DHI, TMSI, ClassNK)
Aerodynamics, Hydrodynamics, Molecular
Dynamics, Multiscale modeling CFD based
design, analysis, lab & field verifications.
R&D W&M Peaks - Competences
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Wind: Research Focus of ERI@N
Resource Assessment
Wind Energy Forecasting
Wind resource mapping & turbine selection
Wind farm design simulation
Device Development
Low Flow Wind turbine for Tropical Region
Shallow Water foundation & tower technology
Complimentary Technologies
Structural Health monitoring & Condition based
maintenance
Grid Integration and Demand Response
Management
System Integration with Compressed Air Energy
Storage
Advances in Tribology
Additive manufacturing for metal based
components.
Gen
BESS
AC/DC DC/AC Grid
DC-DC
Turbine
wP dPbPC
A380
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Tidal Turbine Device Research
Novel Aero/hydrofoil shape & Rotor design
Low inertia drive train research
Light weight fatigue-resistant material research
Multi-functional coating research
Structural health monitoring Sensing system
Support Structure Research
Turbine Wake Field Studies
Fluid-structure interaction research for Mooring / Support Structure
Floating platform Under Wind-Wave Interaction
Research Against Environmental Impact
Effects on Marine Ecosystem
Seaweed / Debris Effect on Propeller Rotor
Anti BioFouling and Marine Corrosion coating
Underwater Acoustic noise
Grid integration studies
Research for Weak Grids & Fault Ride-Through Systems
Distributed grid System Integration
Energy storage system researchBiofouling
Marine RE Applied Research
What turbine design to use?
Seaweed entanglement
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Tropical Wind Turbine Research focus:
Remote region compatible Self erecting wind
turbine.
Novelty
Typhoon resilient designs.
Localized Energy Storage Coupled System
Cost effective material & processes.
Present Progress:
Successfully designed and manufactured a 3KW typhoon
resilient wind turbine and manufactured by industry
partner KLEM
Further Effort
Design in progress of 10KW turbine to deploy in Semakau.
Low inertial drive train
Hybrid Self erecting Tower
Concrete Pillar for
compressed air storage
Concrete foundation
After tilt up
Self load alleviating blade design
Hybrid Natural fiber coupled composites
Low Cut-in Speed Rotor
High lift low drag aerofoils
Semiconductor power electronics
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Tribology Research
Research Focus:
Research Domains
Failure Studies:
• Investigate offshore drivetrain failures
of Vestas.
• Critical analysis of:
• Bearing & Gear steels
• Functional coating
• Heat treatment effects
• Laser based surface morphology
• Lubricant degradation
• Corrosion mechanisms
• Condition Based Maintenance &
Controls
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Gear Enhancement Studies Research focus:
To improve and enhance the
performance of gears in wind power
applications through recent
advancements in materials and
processes.
Novelty
Alternative cost – effective bulk
material for gears.
Alternative surface morphology
techniques using advanced lasers.
Multi-Functional Coatings for wind
turbine gears.
Present Progress
Lab level testing and Scaled Prototype
testing
Further effort
To Field Test in 10MW turbine prototype
Planetary GearboxVestas wind turbine
Scuffing /Wear failure in Wind turbine gears
Bulk Material improvements
Laser based Surface morphology modifications
Surface coatings – Diamond
like Carbon (DLC) Multi-
functional coating
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Additive Manufacturing Studies
• Tailoring of compositions towards structural
components requirements.
• Manufacturing of specimens using tailored
compositions through Additive Manufacturing.
The dimensions of specimens were as per
ASTM standards.
• Evaluation of fatigue properties of Additive
Manufactured specimens.
• Additive Manufacturing of actual structural
component.
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Low Velocity Tidal Bladed Turbines Research
Technology disclosures filed.
Flow
Numerical and CFD Study of Following Options for Energy Extraction Enhancement
Extended Hub – Simple Nacelle
Lab Level Studies to Understand
Performance
Research focus: Develop tidal turbine systems for tropical conditions specifically for
islandic energy needs and to suit low flow tidal currents (~ > 2m/sec) and with low
wake length characteristics.
Present efforts include pilot field installation in
Sentosa, TMFT, Pulau Bukom, etc
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Floating Tidal System
Research focus: To evolve a towable
tidal turbine system to support
remote region’s energy needs.
To develop a modular sub-sea power
Conversion and transfer system.
Novelty: Semi submerged
deployment friendly tidal stream
floating platform which support the
tidal turbine for SEA region
Present Progress: Successfully
achieved a Barge based tidal turbine
deployment in Indonesian waters.
Further Work: To improve further a
compact tidal turbine power source.
* Tidal Energy Modeling Research Scope: To Provide better
understanding of effects of
blockage on the performance and
wake recovery of a single tidal
turbine and array
Workshop on Tidal Current
Extractable Energy: Modelling,
Verification and Validation
ERI@N hosted on 30th June, 2017
through teleconferencing.
Summarised report has been
submitted to OES.
Dr. Jérôme Thiébot, Associate
Professor, LUSAC / Caen
University, France
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Workshop Methodology and Time Plan
Item/ task Details 08’17 10’17 12’17 02’18 04’18 05’18
Region select For case study
Regional survey Site screening * *
Site assessment Localized area in a channel, estuary etc. *
Tidal energy modelling Pre-processing & discussion
Tidal energy modelling Model running & discussion
Tidal energy modelling Post-processing & discussion
Final report Numerical code – to – code to comparison and final
report
Methodology:
Selection of suitable site for case study. We have selected Alderney
race close to Cherbourg, France as the site for case study.
Selected site data acquisition through field measurements or from
online database.
Modelling through their chosen codes and expertise.
Submission of individual reports for code – to – code comparison.
Report sharing between different groups/teams.
Overall numerical code – to – code comparison report preparation
and submission to OES.
Time plan:
LATTITUDE RANGE: 49.5N-49.8N
LONGITUDE RANGE: -2.3W—1.8W
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Biofouling Test Rig
Research Focus: To develop
and test multifunctional
coating.
Present Progress: A dynamic
Test rig is deployed that could
study the biofouling & erosive
wear performance of the
coating under similar tidal
turbine operating parameters.
The test rig evaluates the
biofouling growth rate for
different coating materials.
The evaluation also studies the
durability of the coating under
turbid water conditions.
Dynamic Test Rig to
Study Biofouling
resistive coating
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Floating Solar in Ocean Conditions
ERIAN CONFIDENTIAL
Research Focus:
• Floating solar development and
deployment in tropical sea conditions.
• Structural integrity of floating solar in
deep waters
• Environmental Impact Assessment for
Floating solarFloating solar in tropical sea waters near
Semakau Island (illustration)
Floating solar deployed in Tengeh Reservoir.
Present Efforts:
• Design developments towards
tropic ocean conditions.
• Ocean loads resilient solar
structure is being developed.
Energy Research Institute @ NTU (ERI@N)
1 CleanTech Loop, #06-04 CleanTech One, Singapore
637151
Phone: (65) 6592 1786 / 2468 Fax: (65) 6694 6217
For further information please contact:
Executive-Director ERI@N
Email: [email protected]
http://erian.ntu.edu.sg
Thank you
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Topic 3. Wind and Marine Energies.
Several marine renewable energy sources (tidal, wave energy,
ocean thermal energy…) could have been considered but
offshore wind and tidal energies have been selected in priority
since they are of strong interest for both France and Singapore.
The tidal component of the Wind and Marine Energy topic will
be strongly devoted to CFD modelling studies: waves-current
interactions, interaction between turbines, wake effects,
Influence of waves, current fluctuations and turbulence on
energy production; it will be strongly based on benchmarking
and inter-comparison of models developed separately by
participants from Singapore and France. The second
component will be dedicated to offshore wind, with emphasize
on resource assessment in remote coastal location (tropical
regions) as well as on issues related to low flow tropical wind
turbine in shallow waters
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