In July 2021, a commercial-off-the-shelf hydrophone was deployed in a free-drifting configuration to measure underwater acoustic emissions and characterize a 25 kW-rated tidal turbine at the University of New Hampshire's Living Bridge Project in Portsmouth, New Hampshire. Sampling methods and analysis were performed in alignment with the recently published IEC 62600-40 Technical Specification for acoustic characterization of marine energy converters. Results from this study indicate acoustic emissions from the turbine were below ambient sound levels and therefore did not have a significant impact on the underwater noise levels of the project site. As a component of Pacific Northwest National Laboratory's Triton Field Trials (TFiT) described in a paper published in a Special Issue of Journal of Marine Energy Science and Engineering, this study provides a valuable use case for the IEC 62600-40 Technical Specification framework and further recommendations for cost-effective technologies and methods for measuring underwater noise at future current energy converter project sites. The paper can be accessed in the link bellow.
OwnerNational Renewable Energy Laboratory (NREL) - view all
Update frequencyunknown
Last updatedabout 1 year ago
OverviewCECHydrokineticLiving Bridge ProjectMHKMarineTFiTacousticacoustic emissionscross flow turbinecurrent energy converterdrifting hydrophoneenergyenvironmentalenvironmental monitoringhydrophonemarine energypowerprocessed dataraw datatidal turbineunderwater noise
Additional Information
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dcat_issued2021-07-21T06:00:00Z
dcat_modified2023-06-01T22:52:36Z
dcat_publisher_namePacific Northwest National Laboratory
guidhttps://data.openei.org/submissions/5844
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