The System Assessment
Oil & Gas
Metaldyne Performance Group (called MPG in this article) Plant 1 in Columbus, Indiana (formerly known as Impact Forge) has made significant efficiency improvements to their compressed air system. With the help of their service provider, IAC Air Compression, MPG has implemented some innovative control on their existing air compressors, added new air compressors with variable capacity control, and tied everything together with a modern central controller. This installation has been recognized for its wise use of power by their power utility Duke Energy.
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Quite often the typical variability in compressed air flow demand does not proportionately translate into power reductions at the air compressors. This can be a result of numerous problems with the compressed air supply system. It is important to understand the supply-side’s ability to respond to the demand-side of the compressed air system. If the air compressors, on the supply-side, are not able to translate flow reductions into energy savings, implementation of demand reduction projects should be re-evaluated.