In glass packaging plants, compressed air is a key utility for the production of virtually any type of glass container. In a typical glass packaging plant the demand for compressed air can easily exceed 30,000 to 35,000 Nm3/hr. At 1 to 2 cents per Nm3, and given the fact that most plants operate 24/7, this results in an annual energy bill of €3 to 6 million(1). With these figures, every percentage counts, and proper management of compressed air pays off rapidly.
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