ABB motors and drives save energy at Coventry Hospital

Matched pairs of ABB high efficiency motors and drives will reduce energy consumption at the new Coventry Hospital by over 1,400 MWh per year for the ventilation system in block A, when it comes fully in to service in 2006.  Similar savings are expected for the planned blocks B and C.

Ranging in size from 0.55kW to 45 kW, the 230 drives adn motors packages are being supplied on a just in time basis, being produced and delivered to meet the installation time table of the suppliers of the ventilation system.

Using variable speed drives to control the flow of air and water in the HVAC system can save well over 50% of the energy, compared to using traditional control methods such as throttling valves and vanes.  On a large site like Coventry Hospital, this can have a significant impact on running costs.

The new 1200 bed hospital will replace the existing Walsgrave Hospital plus the majority of Coventry and Warwickshire Hospital and is built on the Walsgrave Hospital site.