Case study
Strakonice Brewery
Replacement of obsolete and fault-prone refrigeration system
Key information
Client:
Strakonice Brewery
Supplier:
Bohemiachlad spol. s.r.o.
Type of facility:
Dry evaporation system
System start-up:
2002
The Czech Republic’s historic Strakonice brewery, famous for beers such as Nektar and Dudák, needed to replace its obsolete and fault-prone refrigeration system. The contractor Bohemiachlad installed a compression refrigeration system that uses ammonia.
Requirements
The brewery’s refrigeration system was antiquated: It broke down regularly, was difficult to service, and didn’t meet the current safety regulations. A new refrigeration solution was needed, one that would be environmentally friendly and economical to run. The brewery also wished to extend its production of beer, which would increase the demands on the refrigeration system.
Solution
Bohemiachlad built a central ammonia-based compression refrigeration plant. The total refrigerating capacity of the system is 620 kW. A dry evaporation system with tube evaporators is used. The tube evaporators cool brine and ice water in open chillers. The refrigerant volume was reduced to just 90 kg per chiller.
Technical data
Cooling capacity:
620 kW
Refrigerant volume:
90 kg
Secondary refrigerant:
ice water and brine
Main components:
4 screw compressors controlled by frequency converters, evaporative condensers, 2 open chillers for ice water and brine
Special features:
All of the motors are equipped with frequency converters, so that their performance can be adapted to the actual load to cut electricity consumption. The refrigeration system is easily controlled from a control centre.
