EC medium pressure axial fans
A new dimension in GreenTech EC technology:

Infinitely economical

Adaptation of the air flow to actual requirements is a crucial factor with regard to the energy consumption of a system. With AC fans, this is often achieved by switching individual fans on and off. By contrast, GreenTech EC fans feature integrated, infinitely variable speed control enabling the air volume to be adjusted as needed. The power consumption Pe drops drastically (P~n³) on reducing the speed n.

The enormous potential for savings is illustrated by a simple calculation example: In nominal operation, an installation with four fans arranged in parallel has a power consumption of 40 kW. If, on an annual average, this installation is operated at the design point for 50% of the time and at half the rated air flow for 50% of the time, energy savings of 65 MWh per year can be obtained.

In an efficiency class of their own

Energy efficiency legislation is becoming ever more stringent. In Europe, the ecodesign regulation for motors (EU 640/2009) currently sets down IE2 as minimum efficiency class. With effect from 2015, the requirements of efficiency class IE3 have to be satisfied. Similar regulations apply in other countries – efficiency class IE3 is already mandatory in the USA, for example. The good news: GreenTech EC motors from ebm-papst already surpass the standards stipulated for efficiency class IE4, which means that you will be able to plan with more certainty well into the future.

And efficient does, of course, also mean economical. On top of that, demand-based speed adjustment ensures that energy consumption never exceeds what is actually required.