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Northwest National Marine Renewable Energy Center
Presentationto
Water PowerEnergy Efficiency and Renewable Energy
US Department of Energy
Northwest National Marine Renewable Energy Center: Tidal Energy
byUniversity of Washington
Center Kickoff MeetingCorvallis, OregonDecember 3, 2008
Northwest National Marine Renewable Energy Center
Philip C. MalteProfessor of Mechanical Design
Department of Mechanical EngineeringUniversity of Washington
Interim Co-DirectorNorthwest National Marine Renewable Energy Center
Northwest National Marine Renewable Energy Center
Research Interests: energy systems, renewable energy, hydrokinetics, alternatives fuels.
NNMREC Role: project coordination and development• Rules and concepts for TISEC.• Hydrokinetic concepts and applications.
Northwest National Marine Renewable Energy Center
WORK PLAN Phase 1 Phase 2 Phase 3
Device & Array Optimization
Optimized turbine depth.
1-D modeling: flow redirection.
Wake modeling.
Flume build.
3-D modeling: flow redirection.
Flume experiments.
Concepts & rules reported.
Mobile Testing
Admiralty Inlet measurements.
Methodology.
Instrumentation.
Continuation of measurements.
Refinement of instrumentation.
Transition of mobile testing suite to new sites
Model calibration
Environment Impacts Modeling
1-D model app to impact of power extraction. 3-D model calibration
3-D model extended to baroclinic response.
3-D model refined, applied to impact of power extraction.
Materials for Reliability & Survivability
Main activity starts in year 3.
Assessment of composite materials for salt-water apps.
Structural design tradeoffs.
Control of bio-fouling/corrosion.
Northwest National Marine Renewable Energy Center
UW Partners
Northwest National Marine Renewable Energy Center
Mitsuhiro KawaseAssociate Professor, Physical Oceanography
School of OceanographyUniversity of Washington
Northwest National Marine Renewable Energy Center
Research interests: numerical and theoretical modeling of ocean and estuarine fluid dynamics and circulation; observation and numerical modeling of circulation and water quality in Puget Sound, Washington.
NNMREC Role: environmental impacts modeling; also involved in study of device / array optimization:• 3-D modeling of impact of power extraction at local and estuarine
scales• Turbine depth optimization• 3-D modeling of flow redirection
Northwest National Marine Renewable Energy Center
• Reduction in tidal range can permanently expose/submerge tidal
flats, altering nearshore habitats
• Reduction in kinetic energy of flow and mixing can slow down flushing of basins,
affecting oxygen levels, water quality and pollutant dispersal
www.prism.washington.edu
Hood Canal Salmon Enhancement Group
Environmental Footprints of Tidal Power Extraction Devices
Northwest National Marine Renewable Energy Center
Computational Facilities and Resources
Hardware• Linux cluster (“Pendon”) with
164 computational cores• Eight-core workstations (Dell
PowerEdge, Mac Pros)• Access to NSF TeraGrid
Software• Models / CFD codes
– SUNTANS– FLUENT– ROMS, POM
• Programming environment– Linux, Mac OS X, Intel
C/Fortran compiler, Message Passing Interface
• Analysis / Visualization– Matlab– Virtual Puget Sound
Northwest National Marine Renewable Energy Center
Surface currents in the SUNTANS model of Puget Sound / San Juan Islands
Admiralty Inlet Tacoma Narrows
Deception Pass
Rosario Strait and Guemes Channel
Northwest National Marine Renewable Energy Center
Alberto AlisedaAssistant Professor
Department of Mechanical EngineeringUniversity of Washington
Northwest National Marine Renewable Energy Center
Research interests: turbulent flows, particle dynamics, sedimentation, air-sea interactions, experimental techniques
NNMREC Role: device and array optimization; turbine wake modeling from numerical simulations and experiments
• Single turbine wake structure • Multiple turbine interference; effect of confinement and
spacing rules
Northwest National Marine Renewable Energy Center
UW Facilities for modeling and wake studies:
Wave-Current Flume: Experimental studies of tidal turbine wakes. Flume being developed with UW funds.
Computer Cluster: Parallel simulations of tidal turbine wakes using commercial software package (Fluent).
Northwest National Marine Renewable Energy Center
James RileyPACCAR Professor of Engineering
Department of Mechanical EngineeringUniversity of Washington
Northwest National Marine Renewable Energy Center
Research interests: fluid dynamics, especially turbulence,
density-stratified flows, boundary layers, wakes,
computational methods; renewable energy
NNMREC Role:• Wake effects study and modeling• Turbine model for SUNTANS code.
Northwest National Marine Renewable Energy Center
Jim ThomsonOceanographer, Applied Physics Laboratory
(University Affiliated Research Center)University of Washington
Northwest National Marine Renewable Energy Center
NSF & ONR Research: coastal physics, field measurements
NNMREC Role: mobile testing for tidal power• Instrumentation package for on site evaluations• Survey optimization and methods• Standardization for resource and device assessment
Northwest National Marine Renewable Energy Center
APL-UW facilities
Machine shop: DesignFabrication Testing
R/V Jack Robertson:SurveysDeploymentsRecoveries
Northwest National Marine Renewable Energy Center
APL-UW equipment
Northwest National Marine Renewable Energy Center
Brian PolagyeDepartment of Mechanical Engineering
University of Washington
Northwest National Marine Renewable Energy Center
Tidal In-Stream Research:• Far-field environmental effects of energy extraction• Resource assessments, site characterization, and device
reviews
NNMREC Role:• Instrumentation package and methodology for mobile
testing• 1D modeling of flow redirection and impact of power
extraction• 3D modeling
Northwest National Marine Renewable Energy Center
Mark E. TuttleProfessor and Chair
Department of Mechanical Engineering
DirectorCenter on Advanced Materials in Transport Aircraft Structures
University of Washington
Northwest National Marine Renewable Energy Center
Research Interests: Advanced composite materials and structures; optimal composite structural designs; long-term durability of composites; adhesive bonding.
NNMREC Role: Composites for use in tidal energy systems• Identification of commercial composite material systems
that minimize bio-fouling and corrosion • Estimation of long-term durability effects due to saltwater
exposure • Studies of composite structural design options• Fabrication and testing of prototype composite structures
Northwest National Marine Renewable Energy Center
Facilities Available:● Materials characterization
labs/equipment (Differential Scanning Calorimetry, Thermal Gravimetric Analysis, Optical or Scanning Electron Microscopy, X-ray Diffraction, Atomic Force Microscope, etc)
● Composite structural fabrication equipment (hot-press, autoclave, RTM, diamond-wheel machining, abrasive water-jet machining, etc)
● Structural testing equipment (Universal test frames, hydraulic fatigue frames, multi-channel data acquisition systems, specialized composite test fixtures, etc)
● Commercial finite-element codes suitable
for use in composite structural design and analysis (Ansys, Abaqus, etc)
