PROJECT
INCORPORATING COLD CHAIN
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3
2
1. +2°C cascade chillers and accumulator vessels.
2. A look inside the impressive Sagamu Brewery.
3. Condenser area.
List of professionals
Owner AB InBev
Developer AB InBev
Architect / Designer PPS Architects
Project manager Royal Haskoning DHV
Electrical WSP Group Africa
Mechanical WSP Group Africa
Wet services WSP Group Africa
Structural Aurecon
Refrigeration plant Alectia
Main building Vita Construction
HVAC&R Emtech
MV Electrical WSP Group Africa
Refrigeration WSP Group Africa
NH 3 compressors GEA Africa
Chiller plate heat exchanger GEA Africa
NH 3 vessels D&D Fabrication
Glycol pumps Grundfoss
Condensers BAC
NH 3 valves Hansen, Danfoss
Air purger Hansen
Variable speed drives (VSD) Danfoss
the system rapidly so as to not affect PLC Siemens
the beer quality. Ammonia skid manufacture MRE Industrial Refrigeration
Glycol skid manufacture Charlson Pumps
Consulting engineer
The swing/backup compressor was tight and was further affected by
installed to ensure that the plant does the civil delays on site. To limit the
not loose capacity should one of the time required on site, the various
compressors fail or need to undergo refrigeration packages were pre-
maintenance. manufactured in South Africa by local
Contractors
contractors MRE Industrial Refrigeration
Condenser plant and Charlson Pumps and then shipped
The condenser plant comprised four as complete skid packages.
evaporative condensers from BAC, a
Due to various delays, the time
liquid receiver, mechanical auto purger, allocated for commissioning was
and an automatic water dosing system. very limited and as a result, various
Each of the condensers’ four fans was parts of the system were only
fitted with variable speed drives, which commissioned during the first brew
were controlled by means of the plant’s process, putting a huge amount
condensing pressure to minimise the of pressure on the commissioning
electrical usage of the plant. engineers to resolve problems with
CHALLENGES
Like with most construction projects,
the timeline for the build was extremely
But in the end, it all came together.
CLA
Suppliers
COLD LINK AFRICA • January/February 2019
www.coldlinkafrica.co.za
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