Energy-efficient according to VDI 2083: How modern droplet separators optimize cleanrooms

View of a droplet separator element with integrated cyclotop. Compared to conventional systems, the modern droplet separator solution not only saves energy but also extends the lifespan of the fans and reduces operating costs. ©Richard Tscherwitschke GmbH

The flow-optimized geometry with helix-shaped channels deflects the pollutant-laden droplets of the process exhaust by more than 360 degrees. The droplets are efficiently separated by centrifugal forces without significantly impeding the airflow. ©Richard Tscherwitschke GmbH

The low pressure drop in the cyclotop separator package reduces the overall pressure loss in the entire module and thus significantly decreases the energy consumption of the fans compared to conventional droplet separators. With multiple systems or higher volumetric flows, the savings increase accordingly. ©Richard Tscherwitschke GmbH

The Cyclotop drop separator is used in vertically standing exhaust washers like the Airtop. ©Richard Tscherwitschke GmbH

The new VDI guideline 2083 highlights the high energy consumption in cleanrooms. One way to save energy here is by reducing the fan power in the exhaust air cleaning process. To this end, Richard Tscherwitschke GmbH has developed the Cyclotop Drop Separator, a solution that specifically contributes to the energetic optimization of exhaust air cleaning in cleanroom systems.

The Cyclotop is used in vertically standing exhaust air washers such as the Airtop and is characterized by a flow-optimized geometry. This allows for highly efficient separation of water droplets, which become laden with pollutants from the contaminated exhaust air during the cleaning process.

The droplet separation is the final step in the exhaust air cleaning process. The flow-optimized geometry with helix-shaped channels directs the droplets more than 360 degrees around. The droplets are efficiently separated by centrifugal forces without significantly impeding the airflow.

The low pressure drop of only 55 Pa – based on the pure flow resistance in the Cyclotop separator package – significantly reduces the energy demand of the fans compared to conventional droplet separators. For example, lamella separators have a pressure loss that is many times higher depending on design and airflow direction.

The channels of the Cyclotop are designed so that they do not create sudden constrictions, which typically lead to pressure loss. The separated droplets are quickly drained, preventing re-mixing with the gas phase, which also reduces pressure loss. The separation efficiency reaches up to 99% at air velocities of 4.5 to 5.0 m/s. Even the smallest particles up to 24 µm are reliably removed.

The technology meets the requirements of current VDI recommendations and is suitable for use in cleanrooms with high demands on air purity and energy efficiency. Richard Tscherwitschke GmbH offers individual consulting for planning suitable exhaust air cleaning concepts.