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Carbon-zero air compressors

ATLAS Copco’s oil-free air division says its new ZR series of water-cooled oil-free air compressors with built-in energy recovery systems is the first in the world to be T&UV certified for net zero energy consumption at specific design conditions.

According to the division, 100% of the electrical power input can be recovered in the form of hot water.

With these ‘carbon zero’ compressors, industries using a great deal of hot water and steam can dramatically cut down on their energy bills.

The company points out that energy savings in compressed air systems are very important as energy consumption typically represents over 80% of a compressor’s lifecycle cost.

While compressed air systems on average account for about 10% of industrial electricity consumption, it can be as high as 40% of a plant’s electricity bill.

The built-in energy recovery system circulates cooling water through the compression elements, the oil cooler, intercooler and aftercooler and as a result of the heat transfer, yields hot water at up to 90°C.

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