PROJECT
INCORPORATING COLD CHAIN
5
4
for this site was adjudicated to be the
ACF. Blast freezing and plate freezing
were also considered as options initially.
The ACF supplier designed the
evaporators to defrost by way of water
but due to the water scarcity in South
Africa, an alternative solution had to be
put in place. As the refrigeration plant
is running in any event, WSP designed
the system in such a way that the ACF
Throughout the
project, the team had to
ensure the best possible
technology
was selected.
evaporators are defrosted with hot
gas, which in turn is how the rest of the
evaporators in the facility are defrosted.
The last hurdle to overcome was the
plant control philosophy. A decision
between an electromechanical, black
box controller/PLC or a bespoke PLC-
driven plant had to be made. With
WSP’s extensive experience on bespoke
PLCs and the benefits it offers in terms
of flexibility, reliability, expandability,
and maintenance, a Siemens PLC with
bespoke software was recommended
and implemented.
Throughout the project, the team had
to ensure the best possible technology
was selected, which also correlates
directly with Karan Beef’s slogan: “Now
quality has a name”. It was made very
clear at the start of the project that only
the best would be acceptable. CLA
LIST OF PROFESSIONALS
Owner Karan Beef Architect / Designer Mike Paterson Associates CC Mike Paterson and Shivaan Sarawan
Electrical Smart Systems Brian Manderson
Mechanical WSP David Brouwer (project director); William Gent
(director); Wian De Kock (mechanical engineer);
and Darren Beddow (senior draughtsman)
Automation Key Automation James Smith
Civil and structural BSM Baker Brian Mclintock
Fire Devotec Phillip de Vos
Lund & Reed Derek Harveson
Main building GCP Projects Rodney van der Walt
Refrigeration Euro Industrial Johnny Jardim, Miguel Jardim
Product Supplier Consultant
QuadCore insulated
panels (supplier) Kingspan -
QuadCore insulated
panels (installer) ACW Louis Vermaak, Peter Bezuidenhout
Compressors FES Gerhard Neumann
PLC controls Siemens -
Evaporative condensers
and coils BAC Mischa Tessendorf
Racking systems Ulma Igor Artiguez
Danfoss valves and
instrumentation Metraclark Zayd Fredericks
Valves and actuators Pleix-Quip Jimmy Short
Fire prevention Wagner Ralph Glaner
Hermetic ammonia
pumps ASW Engineering Michael Stolpe
MCCs LV Panels Keith Dale
Automatic carton
freezer NH3 Refrigeration Johnathan Ball
Pressure vessels Ilva Engineering Lauro Lambardi
Consulting
engineers
Quantity surveyor
Contractors
Product suppliers
COLD LINK AFRICA • November/December 2018
www.coldlinkafrica.co.za
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