Q. How much energy are we using? A. Too much!

Its not just
coils that
benefit
Cooling towers are
routinely supplied with
energy efficient drives
and controls.
Fans are more efficient
and draw more air for
less energy.
With inverter controls in
place duty can be
matched closely
to demand.
That is, as long as your
air intake is not clogged,
your pond is not full of
sludge and the unit is
regularly cleaned and
disinfected to avoid
bacteriological growth.
Q. How much energy are we using?
A. Too much!
If you consider that a building of approximately 2000m 2 will require 250kW of cooling then it is
safe to assume that a lot of buildings in the UK have more than 250kW in place.
A recent survey identified that the UK asset list contained over 47,000 systems of this size and
higher.
If we assume that all of the systems are at the minimum figure then 47,000 x 250kW x 2,000
hours per annum equals a massive 23,500,000 MEGAWATTS.
At an average price of 0.11 per kWh this is £2,585,000,000 per annum which, if running dirty
could cost an additional £775,500,000 per year. Global warming and national debt contributions
all rolled into one.
It makes you sit back and think, doesn’t it.? And remember there are a lot of sites rated greater
than 250kW, and an even greater number just below that figure.
Alternatively you could
install the RABΞScreens
Air Intake Filter which not
only maintains airflow but
also prevents debris build
up.
A RABΞScreen air intake filter was fitted onto the main intake of an
AHU before the frost coil. This was only two weeks after installation and
could have clogged both the coil and the filters.
RAB Specialist Engineers Limited and PreVent® Equipment Protection
01635 248633, sales@rabse.com