EVENTS AND EXHIBITIONS
INCORPORATING COLD CHAIN
consists of two single-stage vapour
compression cycles driven by hermetic
compressors, joined thermally through two
brazed plate cascade heat exchangers
working in parallel and controlled by
electronic expansion valves. The plant can
reach a cooling temperature of about
−40 to −30°C. OTTC is planning to take this
movable plant with them to FRIGAIR 2018
— so go check it out if you are at the show. OTTC would like to congratulate the
following students on the successful
completion of the Ammonia Design course:
AMMONIA TRAINING At the end of the day, everyone left knowing
more than they did before, whether it was
knowledge about what is happening in the
refrigeration industry, examining the various
plants, or simply meeting a new connection.
“To put it simply, each Stammtisch is
chock-full of great possibility for attendees
to network and share experiences,” said
Grobler.
If you’ve missed out on the March
Stammtisch, don’t be disappointed — OTTC
will be making this a regular occurrence.
OTTC enjoys staying ahead of the trends
and this includes being ‘green’ and
encouraging others to do the same, explains
Grobler. There has been a waiting list to do
the OTTC Ammonia Design course with Kurt
Johannsen since 2017, and this is one of the
successful courses that was celebrated at
the Stammtisch. To qualify for the Ammonia
Design course, students must have previously
done the OTTC Ammonia Diploma.
“The future use of ammonia increases
daily as refrigerant prices and availability
fluctuate,” explains Döbelin. “Enabling
students to design a tailor-made plant
is surely one way of promoting the
development of ammonia plants in South
Africa.” Students were asked to design
a complete single-stage NH 3 pump re-
circulation plant and were given bonus
points for considering fluctuation volumes in
the vessel.
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• Paul Greyling – Karan Beef
• Noah Nyampimbi – Private
• Clint Adams – Supreme Poultry Mafikeng
• Mawetu Tetyana – Unilever
• Werner Habig – WSP.
MORE TO COME
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FRIGAIR
The third Stammtisch will actually take place
during FRIGAIR 2018 at the OTTC stand. All
past diploma students are invited to visit
the training centre to receive one of their
famous branded caps.
All diploma holders are also urged to
come and add their signed leaf to the OTTC
copper tree. CLA
1. Isolde Döbelin (left) introducing the latest OTTC lecturer: an old student, Martin Mc Eneaney-Nel.
2. Isolde Döbelin (left) gives Piet Mamabolo his ammonia diploma. He was a petrol attendant
before with no experience in the industry and now has a bright future ahead of him.
3. As usual, a German feast was awaiting all in attendance.