Lesson 8 - Refrigeration Technology
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To do: Go through the activity to the end
This lesson takes a closer look at refrigeration technology. It reviews the different primary and secondary refrigerants and explores the technology required to deliver primary refrigeration to the brewery. It concludes by looking at how refrigeration is used within the brewery.
Secondary Refrigerant Circuits
Secondary refrigerants are used to limit the amount of primary refrigerant in use, and also to reduce the risk of contamination through leaks.
Secondary refrigerants are pumped around the brewery, carrying the cooling from the refrigeration system to the processes which require cooling. The figure below shows an example of how this can be integrated into the primary refrigerant circuit.
Figure: Typical secondary refrigeration circuit