Friday 16 November 2012

Air Compressor Displacement


Many compressors use feedback control systems to either throttle the amount of intake air supplied to the compressor (known as modulating system control or throttling), or to reduce the compressor displacement/speed to accommodate for system load ( known as variable displacement/variable speed control, respectively).
These optional control systems can save energy costs by responding in real time to the needs of the system.  For example, if a compressed air flow of 100 SCFM at 80 PSIG is required for 2 hours of the workday and after this initial use only 50 SCFM at 80 PSIG is required, a variable speed compressor can accommodate for this change by adjusting the speed of the electric motor driving the compressor.  In this example the motor speed will lessen and the required electrical demand to product the required compressed air will lessen as well.  All the while, maintaining adequate compressed air pressure and flow.

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