BARS AND BREWERIES
supporting tubes whereby additional plates are incorporated.
Green beer coolers – thermowave has been playing an important role at all the sites of the brewing company Kompania Piwowarska ever since it renovated its refrigeration systems. The c entral ammonia refrigeration system provides -3,5 °C/-4,9 °C cold which is directly used to cool the beer. thermowave TL 250 TCGL and TL 500 TCGL plate heat exchangers and three thermowave TL 850 KCIL PHEs supplied in 2018 form the interface in each case between the circuits for ammonia and green beer. The green b eer is cooled from 6 °C to -2 °C by a heat exchanger capacity of approx. 560 kW per unit. Water treatment – Kompania Piwowarska also relies on thermowave’s know-how for degassing water and, as such, has installed a thermowave TL 500 FBGV plate heat exchanger w ith three sections. The brewing liquor is first heated here then driven against the incoming fresh water before being cooled down again in the PHE’s third zone. It is not until then that it is pumped into the brewing process. The heat transfer capacity of this specially designed thermowave construction is approximately 5MW.
Demineralised water is used to force remnants o f dissolved oxygen out of the fresh water. This water is treated using a special system with the help of optimised heat exchangers and a special degassing column.
CO2 savings
A new, economical CO 2 refrigeration system was incorporated into the brewing process as part of the overall modernisation of the Poznań and Tychy sites. The ammonia/glycol/CO 2 systems at both sites were equipped with thermowave plate h eat exchangers which together provide a heat transfer capacity of 4,500 kW.
Firstly, the CO 2 is evaporated in two
thermowave TL 500 TDGL units with the warm propylene glycol from the secondary refrigeration circuit. Secondly, propylene glycol subcools the liquid ammonia via two thermowave TL 250 TDGL units.
As a result, the water consumption of the two b reweries has been reduced to around one third of what it was previously. As such, correspondingly less water now needs to be made the right temperature and, according to the company, every year approx. 816.6 tonnes of CO2 equivalent are saved.
White energy-
saving certificates in Poland
W hite energy-sa aving certificates
were introduced in Poland as part of the transposition of the
Directive on Energy End-Use Efficiency and Energy Services in order to improve overall energy efficiency in Poland which was set out as a national target.
The certificates are only awarded as part of a public bidding process and confirm that energy consumption has been significantly reduced. Companies and private individuals benefit in equal measu re. The supported projects range from industrial plants and the retrofitting of buildings right through to combined cooling, heating and power generation and the replacement of units for domestic use.
TEV
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