VSD compressors improve flow and energy savings

Atlas Copco has added three models to its range of oil-injected rotary screw compressors to give larger industrial air users a 20% average improvement in free air delivery and energy savings of up to 35%. Complementing the existing fixed speed GA160+-315 range, the new VSD additions comprise the GA200VSD, GA250VSD and an upgraded version of the GA315VSD, with three pressure variants from 8.5 to 14 bar developed to match operators’ needs.

The adoption of smart design principles has improved airflow, measured as free air delivered (FAD), says the company. Operators can now select smaller compressors for the same applications, saving money and energy. Atlas Copco’s improvements such as the new generation asymmetric compression element incorporated in these machines, has increased FAD by an average of 20% across the range, says the company.

With the use of variable speed drive technology, energy savings of up to 35% are achievable by automatically adjusting the motor speed to match the air demand. Additionally, the optional energy recovery system can recoup up to 75% of the compressor’s shaft power as hot water, which can be re-used for process operations or premises heating applications.

Specific Energy Requirement (SER) is a measure of how  efficiently electrical power is used to produce your compressed air. The new compressors’ combination of a high efficiency IP55 motor and optimised, gear-driven transmission system contributes to increased energy efficiency and results in an overall improvement in SER of 11% on comparable compressors.



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