TEAMER: Tidal Turbine Test, Downeast Turbines, July 12, 2021

Description

Downeast Turbines tested a tidal turbine prototype with novel rotor/channel system and lateral effluent discharge apparatus (LEDA), during five days of testing in the flume at Alden Lab. Three days of testing (July 12-14, 2021) focused on turbine power metrics of torque and rpm, which were low, and then two days of follow-up testing (July 27-28, 2021) focused on LEDA performance metrics of pressure differential and rates of volumetric flow, with encouraging results. Next step is to to characterize, and even optimize, configurations of the LEDA, using 3D-CFD as a helpful tool, to refine its shape and explore its limits of performance as a means of effluent discharge that augments performance of an instream turbine. An improved configuration of the LEDA will be re-combined with the rotor/channel system of the turbine prototype, and ultimately, the rotor will be re-sized (enlarged), to better match the LEDA's performance capabilities in drawing through a rate of volumetric flow. This submission is Downeast Turbines' Post Access Report for the test event. It includes the files described here (next below), and several reference links. "Downeast TEAMER-Post-Access-Report...docx" is a document file containing the report. "Appendices A, B, and C" are included in this file, and so are "Figures #1-7." "Appendix D - Test Data Workbooks.zip" is an archive file containing all post access data (raw data tables, calculating tables, and graphs), presented in fourteen Excel workbooks as described in the report. "Appendix E - Post Access Figures.zip" is an archive file containing "Figures #8-52," of the report. Project is part of the TEAMER RFTS 2 (request for technical support) program.

Resources

Name Format Description Link
57 This zip file contains "Figures #8-52," referenced in the report https://mhkdr.openei.org/files/400/Appendix%20E%20-%20Post%20Access%20Figures.zip
10 This is the Post Access Report for Downeast Turbines' Tidal Turbine Test at Alden Lab, in July 2021. "Appendices A, B, and C" are included in this document, and so are "Figures #1-7." https://mhkdr.openei.org/files/400/Downeast%20TEAMER-Post-Access-Report-2022-0326.docx
21 Powermag.com article - "Understanding Hydro Turbine Draft Tubes and their Importance" https://www.powermag.com/understanding-hydro-turbine-draft-tubes-and-their-importance/
21 Engineering ToolBox, (2005). Velocity Pressure Head. [online] Available at: https://www.engineeringtoolbox.com/velocity-head-d_916.html [Accessed 3/23/2022] https://www.engineeringtoolbox.com/velocity-head-d_916.html
21 Academia.edu - downloadable pdf file, Kirke, B. 2005. Developments in Ducted Water-Current Turbines (This paper was originally written in 2003 and published on www.cyberiad.net. This version includes some updates on tests conducted in 2005). Sustainable Energy Center, University of South Australia, Mawson Lakes, Australia. 13 pages. https://www.academia.edu/1308755/Developments_in_ducted_water_current_turbines
57 This zip file contains all post access data (raw data tables, calculating tables, and graphs), in fourteen Excel workbooks, referenced in the report. https://mhkdr.openei.org/files/400/Appendix%20D%20-%20Test%20Data%20Workbooks.zip

Tags

  • cec
  • wings
  • flume-test
  • tidal
  • fourneyron
  • hydrokinetic
  • downeast
  • effluent
  • mhk
  • outlet-velocity
  • lateral-discharge-wing
  • downeast-turbines
  • turbine
  • leda
  • lateral-effluent-discharge
  • marine
  • instream
  • power
  • diffuser
  • teamer
  • rfts-2
  • current
  • rotor-channel-system
  • downstream-wake
  • current-energy-converter
  • transformation-ratio
  • energy

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