replace on an AD plant, this is a false
economy. Additionally, an inefficient
CHP engine will result in lower
electrical output and higher capex,
and therefore reduced profits – a 1
MW digester operating at even 80
per cent capacity could be losing
around $19,000 each month in lost
electricity sales.
“The BDS reduces biogas temperatures
from around 40ºC to approximately
5-7ºC, condensing more
than 90% of the water volume,”
explains HRS International sales
and marketing director, Matt Hale.
“It works via a chiller system which
supplies a coolant that is transferred
to heat exchangers. Biogas flows on
the product side of the exchanger,
while the coolant flows on the service
side. As the biogas cools, the water
condenses from the gas, leaving a
clean and dry biogas ideal for use in
CHP engines.”
Energy efficiency
Heat recovery comes as standard
with the HRS BDS. The resulting
cold biogas is used to pre-cool any
incoming biogas, reducing the load
on the final cooling heat exchanger
and recovering as much as 20
per cent of the energy needed for
the process. Any extra investment
required is soon recouped in energy
cost savings.
Suitable for AD plants of all sizes, the
HRS BDS comes skid-mounted for
easy access and freedom of movement,
and features an automatic
control panel for full process control.
Future-proof your
AD plant
“Following a series of enquiries for a
system to dehumidify biogas, we are
delighted to launch the HRS BDS,”
says Matt. “With a CHP engine being
one of the most expensive pieces of
equipment on a food waste AD plant,
protecting it makes good business
sense. By removing water from
biogas before it enters a CHP engine,
the HRS BDS helps to extend an
engine’s lifespan, protecting it against
corrosion and cavitation. We are expecting
a high demand from existing
AD operators looking to optimise their
process even further and prolong the
lifespan of their CHP engine.”
About HRS
Process Solutions
Located in Melbourne, and
part of the HRS Group which
operates at the forefront of
thermal technology offering
innovative heat transfer solutions
worldwide across a diverse range
of industries. With approaching
40 years’ experience in the Food
& Beverage sector specialising
in the design and manufacture
of an extensive range of turnkey
systems and components,
incorporating our corrugated
tubular and scraped surface
heat exchanger technology, in
compliance with global design
and industry standards.
HRS has a network of offices
throughout the world: Australia,
New Zealand, UK, Spain,
USA, Malaysia and India; with
manufacturing plants in the UK,
India and Spain.
LEADERS IN THERMAL TECHNOLOGY
For sales enquiries contact info@au.hrs-he.com or
phone +64 9 889 6045 | www.hrs-heatexchangers.com
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