A compressed air system normally includes air compressor sets, pipe line, air treatment instrument and air consumption facilities. As a important power system and a main electricity consuming system in industry, it means 20% electricity consumption in metal industries and over 40% in textile industry. There is a lot can be done to improve the power efficiency of a compressed air system to save energy and cut down the facility’s total cost. A powerful evaluation system to monitor the flow rate, pressure, power consumption of the compressed air system is important for working out useful means to improve the general efficiency, and further to save energy and cost. |