Flow monitoring station for Unitied Utilities at a reservoir close to a treatment works
Located at 53°39’45.2″N 2°35’10.2″W, Fillbrook Reservoir is located north of Rivington Water Treatment Works. Fill brook feeds the reservoir at Anglezaeke. Access is off the highway via unmarked private access and farming land.
To improve the coefficient of discharge Cd, the approach channel is short and therefore requires a flow straightener/ baffle. The flow straightener is designed to reduce the energy from the flow by means of a solid central section with the perforated holes geometrically placed at the left and right hand side of the dead zone. The holes have been equally spaced and elongated to prevent surcharge in high flow conditions.
Combining uncertainties of the notch angle and allowing for a 0.002m tolerance on the broad-crested weir the overall combined uncertainty of the compound weir Uc* (Q) is better than 7%. This is based on Cd Value uncertainties referenced in BS ISO 1438:2008 / 16/30301971 DC 0.8l/s to 164 l/s flow with an uncertainty of 6.7 % at the 95 % level of confidence is achievable
We are specialists in the design, manufacture and installation of ultrasonic wastewater flow and level monitoring equipment for the water industry. At Detectronic, we provide a range of wastewater management services to help you. Any of our products and services can be combined to create a package that’s tailored to your business and your end goals.
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