Abstract
In a recent collaboration with TEAMER and the MaREI Research Centre for Energy, Climate and Marine research (the University College Cork, Ireland), Ohmsett conducted tank testing of the Ocean Energy (OE) 1:15 scale model prototype of a floating oscillating water column (OWC) wave energy converter (WEC). OE is an Irish Wave Energy Developer (https://oceanenergy.ie/) who are specialists in the development of wave energy technology. The WEC absorbs energy from ocean waves to generate green, sustainable electricity. The results from the testing of the scaled model prototype will be used to optimize the development of a much larger WEC device at a later stage.
The scale model device has been in development for over a decade and has successfully been tested at the Lir National Ocean Test Facility at the University College Cork (Ireland) and École Centrale de Nantes (France). The model is instrumented with several sensors for the measurement of water pressure and level at various locations on the device.
Testing was carried out at the Ohmsett test facility between the 1st and 12th May 2023, to study the operational and structural performance of the OE wave energy converter model. The model device was anchored between the main bridge and the auxiliary bridge, and was subjected to a mix of irregular and regular waves. Over 40 tests were carried out in the tank for a range of different CPM and stroke values, with and without the OE device in the water. All data was acquired and stored on the Ohmsett data acquisition system. The acquired tank test data is currently being analyzed at MaREI. The output of the testing on the OE model WEC device and subsequent data analysis, will be utilized to provide input to the design, development, modelling and optimization of the full-scale OE WEC device, referred to as the OE35 WEC device, which is being developed as part of an international project called “WEDUSEA” (Wave Energy Demonstration at Utility Scale to Enable Arrays). The WEDUSEA project will demonstrate a grid connected 1MW floating WEC which will be deployed when completed at the European Marine Energy Centre’s test site in Orkney, Scotland.