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Use of blowers in the drying stage/packaging

In soft drinks manufacturing sites, the compressed air system supplies compressed air for multiple uses and equipment in a very variable range of pressure requirements.

In the drying of cans/bottles or rinsing bottles with ionised air, a low pressure (around 0.2 bar) and high speed air streams are required. The relative power consumption of compressed air for drying is estimated approximately 20-30% of the total compressed air produced.

The efficiency of the air compressors, the ration of energy input to energy output at the point of use can be as low as 8-10% in many compressed air systems. Additionally, the delivery of compressed air systems involves costly systems with frequent maintenance requirements given that in soft drink industries the compressed air must be dry and lubricant free.

In the soft drinks industries the drying step is typically carried out after bottle washing, package or after cold filling where condensations are formed on the bottles. Significant energy savings can be achieved by using well designed high-velocity small blowers that produce the same amount of airflow and pressure with much higher energy efficiency, instead of compressed air for drying bottles and cans.

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