TEAMER: Experimental Characterization of a Laboratory-Scaled Oscillating Surge Wave Energy Converter

Description

This data is a result of an experimental campaign to characterize the hydrodynamics and performance of a laboratory-scale oscillating surge wave energy converter (OSWEC). The device was 85 cm wide, 1.4 meters tall, and 14 cm thick and was tested in the Sea Wave Environmental Lab (SWEL) wave tank at the National Renewable Energy Laboratory which is 2.5 meters wide with a water depth of 1.3 meters. The device included fifteen pressure sensors on the flap face, two 6-axis load cells at the hinge, an encoder to measure flap position, and a motor to emulate a PTO and absorb power. We provide a full summary of the device and experiments in the TEAMER Post-Access Report titled "Optimal control of an oscillating surge wave energy converter". This DropBox directory contains data from four types of experiments: 1. Buoyancy Tests - We measure the torque required to hold the flap at different angles to characterize buoyancy torque as a function of position. 2. Locked Flap (Excitation) Tests - We measure the torque on a locked flap subject to different wave parameters to extract the excitation torque coefficient. 3. Forced Oscillation (Radiation) Tests - We force the flap to oscillate at different periods and amplitudes to extract added inertia and radiation damping coefficients. 4. Control Tests - We subject the flap to different waves and use a linear damping controller to emulate a PTO and extract absorbed power and capture width ratio (CWR) as a function of wave and control parameters. This data set includes raw and processed time series data from the encoder and load cells, as well as calculated hydrodynamic and performance parameters from the tests. We include a README document as well as a spreadsheet with individual test details as a reference. Funding for this experimental campaign was provided by the TEAMER Program under RFTS 10 and was a collaboration between the University of Washington and the National Renewable Energy Laboratory.

Resources

Name Format Description Link
47 ReadMe file in txt. format https://mhkdr.openei.org/files/603/README%20%283%29.txt
33 ReadMe file in pdf. format https://mhkdr.openei.org/files/603/README.pdf
53 Test directory including test number, timestamp, and configuration file information for all tests with round and square flaps. https://mhkdr.openei.org/files/603/Test_Directory.xlsx
33 TEAMER Post Access Report https://mhkdr.openei.org/files/603/TEAMER%20Post-Access%20Report%20-%20UW%20NREL.pdf
57 Raw and processed data of the torque on a locked flap (round and square) subject to different wave parameters to extract the excitation torque coefficient. https://mhkdr.openei.org/files/603/Locked%20Flap%20Tests.zip
57 Raw and processed data used to extract added inertia and radiation damping coefficients when the flap (round and square) was forced to oscillate at different periods and amplitudes. https://mhkdr.openei.org/files/603/Forced%20Oscillation%20Tests.zip
57 Raw and processed data of the torque required to hold the flap (round and square) at different angles to characterize buoyancy torque as a function of position. https://mhkdr.openei.org/files/603/Buoyancy%20Tests.zip
57 Raw and processed data used to extract absorbed power and capture width ratio (CWR) as a function of wave and control parameters when the flap (round and square) was subject to different waves and use a linear damping controller to emulate a PTO. https://mhkdr.openei.org/files/603/Control%20Tests.zip
21 Dropbox link to data repository, including README files, test directory, raw and processed data, and the post-access report for this data set. https://www.dropbox.com/scl/fo/rrz8lk7ifvqpu1pp0d0ev/ADrhpE2NIM5U7KXwYbTejjA?rlkey=wvagalsqt2rzusqif81qqt0b4&dl=0

Tags

  • wave-energy
  • processed-data
  • oswec
  • mhk
  • oscillating-surge-wave-energy-converter
  • wec
  • marine
  • power
  • teamer
  • swel
  • hydrodynamic-coefficients
  • dropbox
  • rfts10
  • sea-wave-environmental-lab
  • raw-data
  • wave-energy-converter
  • energy

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