Industrial refrigeration largely
depends on ammonia which is a dangerous chemical when handled in a
haphazard manner. Ammonia per se is very environment friendly
chemical as it does not deplete the ozone layer. It has the required
levels of thermodynamic qualities which reduces the usage of
electricity. Further with insulated panels in place, the pungent
odour of ammonia when leakages takes place instantly sends out an
alarm which in itself acts as a safety valve.
Using Ammonia refrigeration in poultry,
meat, ice cream and breweries are very versatile, efficient and
environment friendly. But if handled without care, can have health
hazards to the technicians and others as well.
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| Ammonia Refrigeration |
Three common mistakes while handling
ammonia refrigeration are:
Failure to use protective personal
equipment, specifically when performing the maintenance works,
wearing proper eye and face protection equipment is must f not the
full face respirator. When draining oil in industrial refrigerators,
this is the common mistake.
To purge the component, one has to
isolate the repair and valves in order to control the hazards. Ensure
that ammonia is not trapped in the pipe before opening up the
component.
Finally, while repairing the insulated
panels on the roof of building, one has to be careful as to how to
handle the vapours from endangering others. There has to be alternate
intakes for premises before beginning the repair works. As ammonia is
lighter than air, it usually rises above the building and vaporizes.
But due to uneventful winds and drafts, there may be instances when
ammonia may drift back into the building and endanger the lives.
Hence, one should have proper planning before attempting to repair
the refrigeration in industrial appliances. To handle, this
alternative escape points should be provided and also alarm should be
in place to evacuate the humans in premises.
