Page 13 - European Energy Innovation - Summer 2016 publication

Summer 2016 European Energy Innovation
of 2° Celsius (100% RH) First, the unit
needed to be able to cool down to 2°
Celsius without the risk of ice formation. circuit was designed, consisting of
Bear in mind that standard units are
only able to cool down to 7° Celsius
before ice formation starts. Secondly,
the unit needed to be able to withdraw
2 m3/hour of moist from the air for the
air cooling to be efficient. The natural
working fluid used for this process
was R717 (ammonia). In order to use
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13
COMMUNICATION
this medium to cool down the air and
to extract the moist, an in-between
a compressor, heat exchangers and
ducted bundles as shown in figure 1.
There were only a few concerns. Firstly, during winter times when the air has
because of applying two bundles
in an existing channel the resulting
pressure drop of the installation had
to be compensated in some way. For
this reason Bronswerk provided the
new set up with a new fan, eliminating
any kind of pressure loss in the
process. Furthermore, the system
will be not in operation throughout
the whole year. This will mainly occur
less humid. For this reason a by-pass
system was applied enabling Yara to
shut off the unit thereby preventing
unnecessary usage. Last but not least,
droplets needed to be separated from
the cooled down air. Therefore two
demisters were applied on both sides
of the bundles to extract the water from
the air.
THE PROJECT STATUS
At this moment Bronswerk is finalizing
the remaining activities for this project
which will be in full operation at the
end of 2016. First major results are
being expected in spring 2017 but
the forecasts are very positive. The
research, combined with a suitable
process solution, engineering and
hardware supply, make this project
one of a kind and underline both
Yara’s and Bronswerk’s ambition to be
a role model within the industry when
it comes to process optimization and
sustainability. ●
Contact details:
For more information or to find
out what this can mean for your
system, send an email to
Femke@bronswerk.com