As part of an upgrade at its plant, the Milchhof Vipiteno dairy at Vipiteno in South Tyrol, Italy, has fitted out its yogurt production system and stockroom with Lowara pumps. For many dairy plants, Lowara pumps play a role in the production of ice for cooling milk.
The dairy cooperative is one of the oldest in South Tyrol and a leading
supplier on the Italian yogurt market. Every day, the company processes 34,342
gal of milk, 80 percent of which is made into yogurt, butter, milk, cream and
cheese, while 20 percent leaves the dairy as fresh milk.
To manage the daily delivery of milk from about 470 dairy farmers, the South
Tyroleans have invested in a new ice-production plant for cooling milk at time
of delivery and then, after pasteurization, cooling it again and keeping it
chilled until the next process.
Because the energy consumption by a milk processing company reaches its peak
in the summer months due to the greater demand for milk and the higher outdoor
temperatures. More cold is required to cool more milk. At Milchhof Vipiteno, due
to the thermal storage capacity of the ice water system, the dairy can take advantage
of lower overnight rates and reduce electric energy consumption during the day,
when the energy rates are higher. In managing the system, the South Tyrol
dairies can benefit further by using frequency-controlled pumps made by ITT
Lowara of Grossostheim, Germany. The SHS 50-160/55 pumps have a cold conductor
and Hydrovar control device to convey the ice from the respective storage tank
into seven consumer circuits. The dairy now achieves additional electric savings
of as much as 70 percent during pump operation.
Ice Water System Pumps Up Frequency Control
November 22, 2011