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27 Nov 2017

OPTIMIZING COMPRESSED AIR SYSTEM

Compressed air is a critical energy source for many industrial applications, providing mechanical motion, cooling, pressurization and other functions for such equipment as air powered hand tools, actuators, and sophisticated pneumatics robotics. Although it is often viewed as an essentially free resource, Compressed air is anything but free. In fact in many industrial plants, air Compressors consumes more energy than any other single end use. And the energy consumption of compressed air doesn’t stop at the compressor. Once air is compressed to the desired pressure, it often has to be dried and cooled before it is sent through the distribution system to the end use, requiring even more energy.

Reduce system pressure :

Operating your compressed air system above the minimum necessary pressure is wasteful for three reasons. First, it takes more compressor energy to pump air to higher pressure. Second, for compressed air end uses without regulating devices, the volume of air consumed is highly dependent upon the air pressure, the higher the pressure, the more air consumed. Third, leaks can be considered as unregulated end uses and the higher the system pressure, the more air is driven through the leaks.

Identify and Eliminate Inappropriate uses of compressed air:

Inappropriate Application Description Alternative
Open Blowing Used for Cleaning, drying, clean up and other purpose. Low pressure Blowers or fans.
Sparing Aerating, Agitating, oxygenating or percolating liquid with Compressed air.
Aspirating Using Compressed air to induce the flow of another.
Atomizing Using Compressed air to deliver a liquid to a process as an aerosol.
Dilute Phase Transport Using Compressed air to transport solids, such as powdered material, in a diluted format.
Personnel cooling Using Compressed air to cool personnel Fans
Vacuum Generation Applications that use Compressed air with a educator or ejector to create a vacuum Vacuum Pumps
Diaphragm Pumps Often Installed without a shut off valve or regulator Mechanical pumps
Cabinet Cooling Open blowing and air bars (tubes with holes drilled into them) sometime used for cabinet cooling. Fans or dedicated cabinet coolers