FLOW VELOCITY & DEPTH MEASUREMENT

FLOW VELOCITY & DEPTH MEASUREMENT USING CONTACTLESS EQUIPMENT IN WATERCOURSES & RIVERS

As a result of an increase in environmental issues such as flooding, surface run off and silting of watercourses we have undertaken work for local councils, the environment agency and academic institutions.

Thanks to a partnership arrangement with Flowline Systems Ltd our site crews undertake equipment installation services on a nationwide basis using Flow-Tronic supplied contactless measurement devices and control panel units

CASE STUDY

FLOWLINE SYSTEMS - PHOENIX MONITOR

The Phoenix is the next generation RADAR Flowmeter suitable for River Flow Measurements. The Phoenix is mounted above the water surface and measures the flow velocity using the radar technology and the flow depth using a level sensor (ultrasonic, radar or pressure). The flow rate is calculated by applying the continuity equation:  Q = V x A. Non-contact means no ragging, no fouling, and because the sensor uses RADAR there are no lenses or mechanical moving parts inside.

The University of Lancashire needed to monitor the flow characteristics of Moor Beck as it flows under the A66 at Warcop, Cumbria. PES crews were utilised to install and commission the system on site for our colleagues at Flowline systems.

The site works included the installation of a mounting frame fixed to the bridge parapet wall face to accommodate the Phoenix unit & level sensor, installing a new control cabinet containing an IFQ control panel, wiring up the system, programming the units with the site parameters, mounting & wiring in a solar panel  before finally testing the data was correct on site. The location of the installation meant that the unit was battery powered due to a lack of mains power supply with the batteries being kept charged by a solar panel. The control unit gathering the data was also web enabled which means the client can login from any location and view the flow data directly on line at any time. We also undertook a cross section survey of the stream in order to determine a very accurate cross sectional area as used in the calculations.

Equipment as installed (SEE IMAGE)                                

Typical surveyed watercourse cross section

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