A major project to reduce the electrical consumption of air conditioning chillers at Manchester
Airport has been successfully completed by Excalibur.
Excalibur’s involvement with Manchester Airport started with a pilot
installation to chillers at the airport’s Olympia House, which was
monitored to determine the potential of their technology to reduce
With the results making a clear case for a larger scale project, Excalibur
were given the green light to undertake the installation of Liquid
Pressure Amplification and inverter control of condenser fans, as well as
carrying out deep cleaning of condensers on 13 chillers located around
With several of the chillers operating on the ozone-depleting HCFC
refrigerant R22, the airport also contracted Excalibur to complete a
refrigerant change. All R22 was removed and replaced with ozonefriendly R422.
Excalibur have a long history of undertaking this kind of project, having
completed similar work at Heathrow, Stansted, Birmingham, Edinburgh
and Glasgow airports. Excalibur staff are well used to the security
implications of working ‘airside’ but the recently introduced iris scanning
system at Manchester made gaining access to the site more like Mission
Impossible than Terminal 3!
The project was completed with minimum downtime, avoiding the
costly replacement of equipment and enabling the airport to remove
ozone-depleting refrigerants from site. Post project monitoring showed
energy consumption to have been reduced by 4,000,000 KWh / year.
“Excalibur have installed Liquid Pressure Amplification and Intervers to 2 off
1300 kW data centre process chillers. The cooling system is critical to this
business and Excalibur’s professional approach provided the customer with
the confidence to undertake the project. Their condition monitoring also raised
several maintenance issues, which we were able to resolve during the contract.
Initial monitoring is demonstrating a 46% reduction in electrical consumption.”
UK NRG Ltd