A few years ago, we were asked by a Flemish brewery to cool yeast tanks by means of an ice-water machine from Delta-Temp.
We immediately proposea a tailor-made solution. An important point of attention was that a glycol mixture had to be used since the machine had to be installed outside, but also because it had to be cooled to a temperature of 1 °C.
By placing an air-cooled chiller of 400kW, this brewery was able to cool its fermentation tanks. For safety reasons, we placed a physical partition, namely a heat exchanger between the glycol mixture and the cooling water that directly cools the yeast tanks. In the primary circuit of the chiller, the cooled glycol mixture flowed at 0 °C and in the secondary circuit the water to directly cool the yeast tanks (at 1 °C). We have also protected our heat exchanger against freezing by means of a temperature-controlled modular 2/3 way valve.
This installation was in use by this customer for a year and was from the first day an immediate added value for reliable and efficient production.
