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Presentation to Water Power Energy Efficiency and Renewable Energy US Department of Energy Northwest National Marine Renewable Energy Center: Tidal Energy by University of Washington Center Kickoff Meeting Corvallis, Oregon December 3, 2008.

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  1. PresentationtoWater PowerEnergy Efficiency and Renewable EnergyUS Department of EnergyNorthwest National Marine Renewable Energy Center: Tidal EnergybyUniversity of WashingtonCenter Kickoff MeetingCorvallis, OregonDecember 3, 2008

  2. Philip C. MalteProfessor of Mechanical DesignDepartment of Mechanical EngineeringUniversity of WashingtonInterim Co-DirectorNorthwest National Marine Renewable Energy Center

  3. Research Interests: energy systems, renewable energy, hydrokinetics, alternatives fuels.NNMREC Role: project coordination and development • Rules and concepts for TISEC. • Hydrokinetic concepts and applications.

  4. UW Partners

  5. Mitsuhiro KawaseAssociate Professor, Physical OceanographySchool of OceanographyUniversity of Washington

  6. 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

  7. Environmental Footprints of Tidal Power Extraction Devices • Reduction in tidal rangecan permanently expose/submerge tidal flats, altering nearshore habitats www.prism.washington.edu • Reduction in kinetic energy of flow and mixingcan slow down flushing of basins, affecting oxygen levels, water quality and pollutant dispersal Hood Canal Salmon Enhancement Group

  8. 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

  9. Surface currents in the SUNTANS model of Puget Sound / San Juan Islands Rosario Strait and Guemes Channel Deception Pass Admiralty Inlet Tacoma Narrows

  10. Alberto AlisedaAssistant ProfessorDepartment of Mechanical EngineeringUniversity of Washington

  11. Research interests: turbulent flows, particle dynamics, sedimentation, air-sea interactions, experimental techniquesNNMREC 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

  12. 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).

  13. James RileyPACCAR Professor of EngineeringDepartment of Mechanical EngineeringUniversity of Washington

  14. 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.

  15. Jim ThomsonOceanographer, Applied Physics Laboratory(University Affiliated Research Center)University of Washington

  16. NSF & ONR Research: coastal physics, field measurementsNNMREC Role: mobile testing for tidal power • Instrumentation package for on site evaluations • Survey optimization and methods • Standardization for resource and device assessment

  17. APL-UW facilities Machine shop: Design Fabrication Testing R/V Jack Robertson: Surveys Deployments Recoveries

  18. APL-UW equipment

  19. Brian PolagyeDepartment of Mechanical EngineeringUniversity of Washington

  20. 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

  21. Mark E. TuttleProfessor and ChairDepartment of Mechanical EngineeringDirectorCenter on Advanced Materials in Transport Aircraft StructuresUniversity of Washington

  22. 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

  23. 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)

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