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A comparison of platform and sea-bed mounted flow measurement instrumentation for SME PLAT-I

Carwyn Frost, Michael Togneri Orcid Logo, Penny Jeffcoate, Thomas Lake Orcid Logo, Cuan Boake, Ralf Starzmann, Alison Williams Orcid Logo

International Marine Energy Journal, Volume: 5, Issue: 2, Pages: 195 - 200

Swansea University Authors: Michael Togneri Orcid Logo, Thomas Lake Orcid Logo, Alison Williams Orcid Logo

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DOI (Published version): 10.36688/imej.5.195-200

Abstract

Tidal resource assessment for the characterisation of turbine performance or Annual Energy Prediction currently uses the method of bins as recommended by international standards. An alternative method is proposed in this paper and applied to the Sustainable Marine Energy PLAT-I deployment in Connel...

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Published in: International Marine Energy Journal
ISSN: 2631-5548
Published: European Wave and Tidal Energy Conference 2022
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URI: https://cronfa.swan.ac.uk/Record/cronfa61583
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An alternative method is proposed in this paper and applied to the Sustainable Marine Energy PLAT-I deployment in Connel Sound, Scotland. This method may be suitable for tidal turbines which operate from the surface. Three instrumentation types are used in this work, a bed-mounted Acoustic Doppler Profiler (ADP), and platform-mounted Acoustic Doppler Velocimeter (ADV) and Electromagnetic Current Meter (ECM). By comparing the resource characteristics from these three sources, a comparison of their velocity magnitudes and turbulence characteristics is made, demonstrating the difference between methodologies. It was found that the ADP evaluated using the method of bins produced a more conservative velocity distribution, in comparison to the ADV and ECM. Consequently, a representative AEP showed a difference of 3.8kWh (50% of ADP total) for the month of data collected. When comparing the Turbulence Intensity between devices, the ADP and ECM had similar metrics whilst the ADV had up to 14% higher values. 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spelling 2022-11-10T15:37:38.4829059 v2 61583 2022-10-18 A comparison of platform and sea-bed mounted flow measurement instrumentation for SME PLAT-I 7032d5a521c181cea18dbb759e1ffdeb 0000-0002-6820-1680 Michael Togneri Michael Togneri true false be1d57f705e41548bf1f1ef6551acc90 0000-0003-3045-3652 Thomas Lake Thomas Lake true false cb1b1946eccac3bbf7592d6ab1c4d065 0000-0002-2494-1468 Alison Williams Alison Williams true false 2022-10-18 MECH Tidal resource assessment for the characterisation of turbine performance or Annual Energy Prediction currently uses the method of bins as recommended by international standards. An alternative method is proposed in this paper and applied to the Sustainable Marine Energy PLAT-I deployment in Connel Sound, Scotland. This method may be suitable for tidal turbines which operate from the surface. Three instrumentation types are used in this work, a bed-mounted Acoustic Doppler Profiler (ADP), and platform-mounted Acoustic Doppler Velocimeter (ADV) and Electromagnetic Current Meter (ECM). By comparing the resource characteristics from these three sources, a comparison of their velocity magnitudes and turbulence characteristics is made, demonstrating the difference between methodologies. It was found that the ADP evaluated using the method of bins produced a more conservative velocity distribution, in comparison to the ADV and ECM. Consequently, a representative AEP showed a difference of 3.8kWh (50% of ADP total) for the month of data collected. When comparing the Turbulence Intensity between devices, the ADP and ECM had similar metrics whilst the ADV had up to 14% higher values. The significance of these differences requires further work comparing them to the SME PLAT-I turbines power output to ascertain which best represents the onset flow experienced by the turbine and if there is a correlation between power performance and turbulence intensity. Journal Article International Marine Energy Journal 5 2 195 200 European Wave and Tidal Energy Conference 2631-5548 Acoustic Doppler Instrumentation, Tidal Resource Assessment, Turbulence, Tidal Stream Turbines, Device Deployment 30 9 2022 2022-09-30 10.36688/imej.5.195-200 COLLEGE NANME Mechanical Engineering COLLEGE CODE MECH Swansea University This work was supported in part by the EPSRC under SURFTEC project, EP/N02057X/1. 2022-11-10T15:37:38.4829059 2022-10-18T11:24:52.2046502 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering Carwyn Frost 1 Michael Togneri 0000-0002-6820-1680 2 Penny Jeffcoate 3 Thomas Lake 0000-0003-3045-3652 4 Cuan Boake 5 Ralf Starzmann 6 Alison Williams 0000-0002-2494-1468 7 61583__25729__24edccd7a2e34965929fcba682ffcefd.pdf 61583.pdf 2022-11-10T15:35:59.5833148 Output 642705 application/pdf Version of Record true This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 licence true eng http://creativecommons.org/licenses/by/4.0/
title A comparison of platform and sea-bed mounted flow measurement instrumentation for SME PLAT-I
spellingShingle A comparison of platform and sea-bed mounted flow measurement instrumentation for SME PLAT-I
Michael Togneri
Thomas Lake
Alison Williams
title_short A comparison of platform and sea-bed mounted flow measurement instrumentation for SME PLAT-I
title_full A comparison of platform and sea-bed mounted flow measurement instrumentation for SME PLAT-I
title_fullStr A comparison of platform and sea-bed mounted flow measurement instrumentation for SME PLAT-I
title_full_unstemmed A comparison of platform and sea-bed mounted flow measurement instrumentation for SME PLAT-I
title_sort A comparison of platform and sea-bed mounted flow measurement instrumentation for SME PLAT-I
author_id_str_mv 7032d5a521c181cea18dbb759e1ffdeb
be1d57f705e41548bf1f1ef6551acc90
cb1b1946eccac3bbf7592d6ab1c4d065
author_id_fullname_str_mv 7032d5a521c181cea18dbb759e1ffdeb_***_Michael Togneri
be1d57f705e41548bf1f1ef6551acc90_***_Thomas Lake
cb1b1946eccac3bbf7592d6ab1c4d065_***_Alison Williams
author Michael Togneri
Thomas Lake
Alison Williams
author2 Carwyn Frost
Michael Togneri
Penny Jeffcoate
Thomas Lake
Cuan Boake
Ralf Starzmann
Alison Williams
format Journal article
container_title International Marine Energy Journal
container_volume 5
container_issue 2
container_start_page 195
publishDate 2022
institution Swansea University
issn 2631-5548
doi_str_mv 10.36688/imej.5.195-200
publisher European Wave and Tidal Energy Conference
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering
document_store_str 1
active_str 0
description Tidal resource assessment for the characterisation of turbine performance or Annual Energy Prediction currently uses the method of bins as recommended by international standards. An alternative method is proposed in this paper and applied to the Sustainable Marine Energy PLAT-I deployment in Connel Sound, Scotland. This method may be suitable for tidal turbines which operate from the surface. Three instrumentation types are used in this work, a bed-mounted Acoustic Doppler Profiler (ADP), and platform-mounted Acoustic Doppler Velocimeter (ADV) and Electromagnetic Current Meter (ECM). By comparing the resource characteristics from these three sources, a comparison of their velocity magnitudes and turbulence characteristics is made, demonstrating the difference between methodologies. It was found that the ADP evaluated using the method of bins produced a more conservative velocity distribution, in comparison to the ADV and ECM. Consequently, a representative AEP showed a difference of 3.8kWh (50% of ADP total) for the month of data collected. When comparing the Turbulence Intensity between devices, the ADP and ECM had similar metrics whilst the ADV had up to 14% higher values. The significance of these differences requires further work comparing them to the SME PLAT-I turbines power output to ascertain which best represents the onset flow experienced by the turbine and if there is a correlation between power performance and turbulence intensity.
published_date 2022-09-30T04:20:30Z
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score 11.037056

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