IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Special sessions : Energy flux measurement of tidal stream in a strait using two crossing ultrasonic transmission lines
Energy flux measurement of tidal stream in a strait using two crossing ultrasonic transmission lines
A tidal energy resource assessment was carried out in the Nekoseto strait of the Seto Inland Sea, Japan, using an
acoustic tomography system (FATS) with two crossing ultrasonic transmission lines. The lengths of the two transmission
lines were 1204 m and 1622 m, respectively, and the maximum depth was 100 m in the cross sections along the
transmission lines of the strait. The central frequency of the broad-band transducers was 30 kHz. Unlike many resource
assessments which use ADCPs, in the present study, FATS were deployed in the Nekoseto strait to measure cross
sectional averaged velocity. The maximum cross-sectional averaged stream velocity measured by FATS was 1 ms−1. The
maximum values of the energy flux density and the energy flux were 0.5 kWm−2 and 40 MW, respectively. To continuously
monitor the tidal currents and the energy fluxes is required without disturbing shipping, fisheries or marine aquaculture
industries. The FATS can be installed on a coastline, seashore, riverbank or bridge, locations that are subjected to not only
the passage of ships but also sedimentation and strong current forces.
File Size : 1,074,879 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Special sessions
Date Published : 14/08/2015
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