WILO HELPS MEND BROKEN SCAR ….

– WITH PUMPS OFFERING 44% SAVINGS IN ENERGY COSTS AND ANNUAL CO2 EMISSIONS….

Broken Scar is one of Northumberland Water’s principal water treatment works, serving the population of Teesside and East Cleveland. The works has a nominal capacity of 180 million litres per day and abstracts raw water from the River tees. The works also has an abstraction licence of 9.1 million litres per day for the No10 borehole, which is used whenever possible as the water from the borehole doesn’t require as much treatment as the water abstracted from the river.

Enter Wilo, the leading borehole pump manufacturer to see if the application could be re-engineered to improve both reliability and operating costs. Initially a complete performance and system analysis was undertaken of the existing installation and modelling suggested high potential savings – forecasting £28,851 per annum. A new K147 hydraulic was selected together with the award winning CERAM “CT” on wear surfaces. This hydraulic was coupled to an asynchronous motor with an internal cooling shroud – offering an optimised pump selection.

Once the new unit was installed, complete performance analysis was carried out again, and the results independently verified. Comparison were taken at a fixed duty of 99.2L/s and 32.36mtr head – operating 24hrs per day at £0.095 £/KwH and Co2 calculated at 900 g/KwH. The annual operating costs dropped from £64,683 down to £34,192 – a saving of £30,491 per annum. Amortisation took 0.49 of a year – providing a less than six months payback. In addition, the carbon savings associated with the reduced energy consumption provide a total saving of 288.8 mt/Co2 per annum. The new borehole unit effectively reduced water extraction costs by 47.1% per mega litre.

For more information on the Wilo Water management options, contact Simon Oakes on 01283 523000 or speak to the sales department for more information and quotations. Alternatively go to www.wilo.co.uk and follow the guide to water management and the water management product portfolio.