HVAC systems are very
large energy users, normally
constituting 30-40% of your total
energy consumption
-
These
systems run at significantly reduced
efficiency for two reasons
1.
Bio-films grow on heat exchange
plates in the cooling coils causing a
restriction to airflow & a loss in
thermal efficiency
2. Manual cleaning
is ineffective at cleaning & stopping bio-film
buildup + manual cleaning damages structurally weak
components leading to increased
inefficiencies in HVAC performance
The Solution:
UVC
continuously kills bio-films & stops
them from re-growing on the coiling
coil heat exchange plates.This
reduces resistance to airflow &
significantly
increases thermal efficiency
resulting in energy savings of 10-20% in
HVAC, cold storage & refrigerated systems of any size delivering a rapid R.O.I.
in under 24 months and in many
cases, considerably less
What do
engineers think of our systems from
Steril-Aire?
- Play the video and find out
Other
System Benefits
Reduction in
compressor running hours
(leading to reductions in
compressor maintenance)
Increased Compressor Life
Increased HVAC Life
Energy Saving Case Studies
How Do Utilities Save
Energy?
Estimated
savings -£92k
in annual energy costs in 2
+ years
15% increase
in HVAC efficiency
Cut back from
four 300-ton chillers to two
Bond University
In one
AHU only at $0.10 per kWh we
estimate a reduction of
58,950 kWh per annum.
1231 kWh = 1 tonne of Co2-e
= reduction of 47.8 tonnes
of Co2-e per annum
Auckland Airport
Annual
kWh improvement before
operating cost deductions is
19,000 kWh or 3,315Kg Co2
emissions
2nd year and each year after
including operating cost
deductions: Equivalent of
30,955 kWh or a reduction of
5,392Kg of Co2-e per annum
Southern
California Air Conditioning
Distributors (The
worlds’ largest Carrier
distributor)
The
pressure drop across the
coil decreased by over 30%
The
airflow increased from
16,000 CFM to 17,400 CFM
30% increase in cooling
capacity from 548,502 BTU to
797,094 BTU
The
devices ability to increase
system performance to almost“as
new”levels
and is expected to prolong
the life on mechanical
equipment
Potential Horse power
savings should not be
ignored especially for those
who utilise VAV drives
The Florida
Hospital Group
Within
weeks of installing the UVC
the air velocity across the
coil more than doubled from
230 fpm to 520 fpm
The wet bulb temperature
decreased from 57°F-53°F
We
calculated the increase in
capacity to 95,245 BTU
saving£3,300
on an investment of£2,000.00
The
hospital is conservatively
saving 15% in HVAC system
energy costs
Rio
Grande Hospital
Before UVC
The
chillers serving the
hospital were running at 99%
capacity
Chilled water “in” measured
at 43°, while Chilled water
“out” measured at 64°
After
UVC
The
same chillers were running
at only 62% capacity
Chilled water “in” remained
at 43°, but chilled water
“out” temperature had
decreased to 53°, an 11
degree drop
Electrical usage (in
kilowatt hours) declined by
20.64%
This essentially cancelled
out an equivalent rise in
utility rates from $.06 per
kWh to $.08 per kWh
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