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| Nortek UK | 25 Jan 2012 |
Scour Monitor for Wind Farms
The Nortek have launched a Scour Monitor for offshore wind farms, jack-up rigs, jetty walls and underwater pier foundations.
The instrument comprises four downward looking narrow acoustic beams, which continuously monitor the seabed profile close to the base of the structure. User selectable, time series datasets are collected and recorded internally and/or can be output in real-time, using RS 232 or RS 422 formats.
The four beams fan out in a single axial plane, normally orientated perpendicular to the face of the structure. Changes in seabed levels adjacent to the structure, can therefore be measured in real-time and relayed back from the field. Scour and subsequent refill events, which might happen during storm periods, can thus be identified and fully quantified.
The Nortek Scour Monitor provides invaluable information for modellers or project operators, trying to assess whether scour protection is required.
The Nortek Scour Monitor is manufactured in two frequencies 2 MHz and
1 MHz, offering vertical ranges of 10m and 30m respectively. Depending slightly on beam slant angle, the measurement accuracy of these instruments is around 20cm.
The instruments have been designed, with the intention that they maybe deployed in groups, thus enabling a complete assessment to be made of the overall wind farm sediment movement patterns. The instrument price has been set, to reflect the possibility of multiple unit deployments.
Nortek appreciates the importance of being able to deploy and recover these devices, with the minimum amount of trouble and wherever possible, without the need for divers. To this end, Nortek have been working on a unique deployment system, which should allow diver-less deployments to be carried out. Details of our Prototype diver-less deployment system, together with full details of the scour monitor itself will be available on stand K20 at Oceanology International 2012.
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