BARS AND BREWERIES
An ammonia-based upgrade at Wadworth brewery
W
adworth brewery bosses are toasting a refrigeration upgrade which will cut running costs and lead to a
smaller carbon footprint. J&E Hall has installed a new ammonia-based system at the brewery in Devizes, Wiltshire.
This serves a transfer beer chiller, a cask room, three cold rooms and tanks involved in conditioning and refining processes where temperature levels are key.
New compressor packages supplied by J&E Hall were teamed with Leroy Somer motors. Wadworth brewery operates more than 240 pubs in south-west England. Brewery chiefs turned to J&E Hall’s expertise after deciding it made economic sense to replace an old ammonia-based system, which was running on compressors and motors first installed in the 1950s, and control panels that were modified in the 1980s.
Robert Tyre, chief engineer at Wadworth, said the decision to upgrade was taken after weighing up maintenance and servicing costs against the price of a new system. “It was time to move into the 21st Century,” he explained. It was out with the old and in with the
new as a four Veebloc reciprocating compressor set-up of two Halls V127s and two Halls V92s made way for an Hallscrew HSO 3221 on fixed speed with slide valve control and an Hallscrew HSO 3216 on a variable speed drive, running between 1250 rpm and 2500 rpm to match the production loads.
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Av December 2016 47
J&E Hall Fridgewatch controllers were used to control the new compressors and the inverter. These were connected to new control panels which were manufactured and installed within the project.
The existing evaporator and condenser set-up was kept.
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