Ultrasonic humidifier function principle
Ultrasonic humidifiers operate according to the principle of "ultrasonic atomization".
A transformer converts a high-frequency electronic signal to a high-frequency mechanical oscillation.
The surface of the oscillator vibrates at such high speed that the water can no longer follow the movement due to its inertia, producing a column of water. A vacuum is created during the negative amplitude of the oscillator. Cavitation gives rise to bubbles which are "catapulted" to the edge of the water column during the positive amplitude, where they collide with each another. Water particles are atomized at the edge of the water column, forming a mist that is assimilated in the airflow.
Reducing energy costs with ultrasonic humidification
The STULZ CyberSonic humidifier cabinet evaporates up to 42 kg of water an hour with minimal energy expenditure, producing a cooling effect of up to 24 kW. In a Data Center with a heat load of 500 kW in which DX A/C units are used, ultrasonic humidification enables compressor running times to be reduced by 4 %. Together with the savings made compared with conventional steam humidifiers, the overall running costs of the air conditioning can be cut by around 20%.
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