New AHU filters reduce costs and CO2 emissions at Heathrow Airport

New filters in air-handling plant at Heathrow Airport are expected to lead to savings of over a £1 million a year and a reduction in CO2 emissions of 6000 t a year. Vokes-Air Group has been working with Heathrow Airport to reduce energy consumption and CO2 emissions. Already contracted to supply, fit and dispose of filters, Vokes-Air has installed its Synsafe Revo pocket filter following a full review of the airport’s current arrangements for filters in air-handling units.

These filters were installed in a number of AHUs for trials against its own filters and those of other manufacturers. These installations were monitored for air flow, pressure drop, filtration efficiency and power consumption. While there was a variance in energy savings on each unit, the Synsafe Revo outperformed all other filters by 20 to 50%.

The new filtration arrangement replaces a 2-stage system incorporating a pad and bag filter with a single pocket filter. As well as energy savings, maintenance requirements are also less and disposal to landfill will be reduced by 300 m3 a year.

Simon Hughes, sales director of Vokes-Air says, ‘All air-handling units have different operating characteristics, Whilst exact savings are significant, they are impossible to calculate. But in every installation, the Revo has reduced the pressure drop whilst maintaining its efficiency and service life.’

For more information on this story, click here: July 10, 133
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