Cold Link Africa May 2018 | Page 18

PROJECT INCORPORATING COLD CHAIN Inside the chiller plant room. backup is vital; the risk is simply too high,” says Baring Richardson. They even have a backup generator that can run one of the chillers in case of a power cut. The chillers both run on R134a refrigerant and provide 680kW of cooling each. The WF model is a standard water-cooled screw chiller that can only operate with a maximum condensing water temperature of 50°C. While the HWF model is a high- temperature water-cooled chiller that can operate with condensing water up to 60°C; therefore, they can be used to produce hot water for domestic applications. WATER MATTERS The farm uses minimal water for farming and none of it leaves the property. Every drop is getting used, sometimes twice (or even three times). They are very aware of the water crisis in the Western Cape and do everything they can to save (and reuse water). Their Theewaterskloof Dam water allocation has recently been cut by 70% so they have had to take extreme measures to ensure their water needs are taken care of. They rely heavi