Atlas Copco ER energy recovery systems

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The Atlas Copco ER range of energy recovery systems can recover up to 94% of the electrical energy used by an air or gas compressor. This means users are able to use their compressor energy more than once.

When users compress air, they generate a lot of heat. The major portion of this heat - up to 94% - remains in the compressed air and lubricating oil; the remaining 6% is lost to the environment through radiation losses. The design of Atlas Copco screw compressors, coupled with their ER energy recovery system, fully captures all the available heat generated during the compression process.

The recoverable heat can be used in a variety of ways to offset general industrial heating requirements. This recovered energy can be used to preheat water feed to boilers or steam generators; other applications include space heating and even the heating of water for washing hands and for showers. Recovered heat reduces the amount of energy required from traditional energy sources which, in turn, reduces CO₂ emissions.

Atlas Copco screw compressors from 30 to 900 kW can be ordered with the option of a factory-fitted ER energy recovery system. Additionally, energy recovery systems can be retrofitted to the company’s existing compressors and other brands of screw compressor in the 11 to 355 kW range. Atlas Copco compressors fitted with ER energy recovery systems are said to be twice as efficient.