Thermodynamics article. Reducing the cost of compressed air

Reducing the cost of compressed air

Compressed air at gage pressures of 550 to 1000 kPa (80 to 150 psig) is

commonly used in industrial facilities to perform a wide variety of tasks

such as cleaning, operating pneumatic equipment, and even refrigeration.

It is often referred to as the fourth utility after electricity, water, and

natural gas or oil. In production facilities, there is a widespread waste

of energy associated with compressed-air systems and a general lack of

awareness about the opportunities to conserve energy. A considerable

portion of the energy waste associated with compressed-air systems can

be avoided by following some commonsense measures. In this section

we discuss the energy losses associated with compressed-air systems and

their costs to manufacturers. We also show how to reduce the cost of

compressed air in existing facilities by making some modifications with

attractive payback periods. With the exception of a few compressors that

are driven by natural gas engines, all compressors are driven by electric

motors

Kejuruteraan Kimia Kejuruteraan Elektrik Kejuruteraan Kejuruteraan Mekanikal Fizik

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