Name: Pál Schmitt
Address: Queen’s University Belfast, 12-13 The Strand, Portaferry, BT22 1PF, Northern Ireland, UK
This paper presents the first measurement of the sound emissions of a subsea tidal kite. (anchored to the sea floor by a tether and flying in a figure-eight configuration in the water column) operating in field conditions. Challenges in the measurement and post-processing of the data are detailed. Results are presented for three operating conditions of the kite: (1) varying turbine rotations per minute (RPM), (2) varying kite speed, and (3) a twisted tether.
This project has received funding from the European Union’s Horizon 2020 research and innovation program under Grant Agreement No. 654438
Strangford Narrows, Northern Ireland
To describe the noise produced from a quarter-scale subsea tidal kite under operating field conditions.
Kite speed and variation of the tether twist have less influence on overall sound levels than does turbine RPM, however significant changes to the noise emissions have been identified. The untwisted tether shows a peak in SPL around 100 Hz which is missing in the twisted configuration.
Schmitt, P.; Pine, M.; Culloch, R.; Lieber, L.; Kregting, L. (2018). Noise characterization of a subsea tidal kite. Journal of the Acoustical Society of America, 144(5), 1-6. https://tethys.pnnl.gov/publications/noise-characterization-subsea-tidal-kite