A GEA solution for Delta Beverages’ Sorghum Brewery in Zimbabwe
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Delta Beverages’ Fairbridge Brewery in Bulawayo has undergone an extensive upgrade to turn it into a modern facility with state of the art brewing and packaging technologies. Delta wanted to offer their customers the new and improved type of Sorghum or Chibuku Beer called Chibuku Super, which uses new technologies that dramatically extend the product shelf life from only a few days to a couple of weeks.
This new technology required a chiller plant firstly to cool the secondary refrigerant, glycol, which cools product coming into the bottle filling machines and secondly, to cool chilled water being circulated in the cooling jackets of the fermenting vessels.
GEA Sales Engineer Mike Maccallum offered two GEA Grasso Duo chiller packages, models FX GC VP SA1050. The units were fitted with GEA Grasso V600 compressors, and condensers were supplied by Evapco of Johannesburg. These chillers, which use ammonia as the refrigerant, not only have the highest efficiency but this refrigerant is also the greenest, having global warming potentials and ozone depletion potentials of zero. Furthermore, unlike many synthetic refrigerants, it is not subject to phase-down or out in the future.
The project planning was done to maximise offsite fabrication and minimise the installation time on site. This saved an estimated 50-60% of the site and accommodation costs. The chillers and pump skids were manufactured at the GEA Cape Town workshop.
Pipe route planning, equipment layouts and pipe prefabrication drawings were done using a new Autodesk Inventor plant design package. “From a project manager’s perspective it was brilliant working with the 3D models. We could eliminate most of the onsite issues”, says Maccallum.
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