Energair Cuts Compressed Air Energy Bill Gelpack Industrial has made an annual saving of more than 45 per cent on energy used to generate compressed air using a retro-fit variable speed drive package from Energair. A compressed air audit conducted at Gelpack Industrial revealed that 40.189 per cent of the input energy used to power the compressors was not productive, and that the system pressure was kept above what was required. This was due to the inefficient operation of two fixed-speed, 75kW, Worthington Rollair compressors, which were used on a rotating system to provide compressed air to the factory. The audit highlighted the potential savings that could be made by retro fitting a variable speed drive (VSD) package to reduce offload running and match air generation more closely to system demand. One area that can use a lot of non-productive energy is compressed air generation. Many companies are still unwittingly operating systems inefficiently through excessive compressors id...
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