Cold Link Africa Mar/Apr 2017 | Page 36

FEATURE
INCORPORATING COLD CHAIN
compression end temperature. This
the system has a refrigeration capacity
serviced thanks to removable side parts.
Kälte-Technik GmbH. The refrigeration
allows that piston compressors to reach
of 64kW, and is equipped with an
Equipped with a UMTS-modem and a
engineering experts from Halfing,
a larger temperature stroke and enables
evaporator and two condenser fans.
W-LAN connection, the entire system can
Bavaria are currently supporting ABC
the use of air-cooled condensers.
Thanks to the combination of R723 as a
be monitored via the internet.
Foodmachinery s. r. o., a company based
R723 is also environmentally friendly, cost-efficient, and readily available in sufficient amounts. R723 systems
refrigerant and air-cooled condensation with EC fans, the refrigeration unit can reach a very high energy efficiency under
Perfect cooling components for meat processing
in Bratislava, in a project for one of their clients from the meat-processing industry, and contributed an R723
have been in use for many years. All
both full and partial load. Despite being
The refrigerant R723 also played the
refrigeration unit for the construction
components are available and sold as
completely encased, the refrigerating
leading part in a project of another
of a new external refrigerating system.
‘ ready to plug in’ condensing units or
system can be easily cleaned and
eurammon member, HKT Huber-
The unit has a refrigeration capacity of
chillers. Another advantage: the relevant
authorities treat R723 cooling systems
An important
contribution can
be made by using
natural refrigerants
such as R723,
which is particularly
environment-friendly
with an ODP of 0 and
a GWP of 8.
like R717 systems, and therefore do not
require more extensive safety measures,
says Kaltenbrunner. Its low acquisition
costs, along with being future-proof and
reliable, make the natural refrigerant
a popular choice for planners and
operators of refrigerating systems.
An environmentally friendly add-on for existing systems
These aspects were also in the focus of
a project undertaken by eurammon
member Th. WITT Kältemaschinenfabrik
GmbH for Herrmannsdorfer
Landwerkstätten, a food-producing
company. The family-owned business
from Bavaria doesn’ t only set great store
by organic farming and food processing,
but makes a point of pursuing a holistic
sustainable subsistence strategy. This
is why the company, when planning
a new refrigerating system, looked
into environment-friendly alternatives
that were not only durable and
energy-efficient, but also used natural
refrigerants. The idea was for a new
cooling system to add to the capacity of
the existing one, an ammonia-operated
chilled-water system. Herrmannsdorfer
Landwerkstätten also wanted their system
to be reliable, safe, and easy to maintain.
Against this background, Th. WITT installed
a chilled-brine compact refrigeration unit,
tailor-made for the specific requirements,
charged with 20kg of the natural
refrigerant ammonia dimethyl ether. Using
two reciprocating piston compressors,

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