Microfans of radial construction for sensor technology

A roof fan can be the same name referring to two different types of fans. On the one hand, it is the classic fan that is mounted indoors in homes and spins around to create an air flow in a room (these are also called HVLS fans (High-Volume Low-Speed)). And partly it is the type of fans that we work with – i.e. fans that are mounted outdoors on roofs belonging to e.g. apartment buildings, schools or industrial premises. A roof fan is a fan that is part of the ventilation system and has the task of extracting hot air, moisture and pollution from the indoor space and blowing them outside. The fans are usually designed to be robust and weather resistant as they are mounted on the roof. Of course, there are a variety of material designs adapted to the application needs.

High flow wall fans for extraction and/or ventilation This type of fans provide significant air flows for the extraction and/or ventilation of industrial, livestock or agricultural premises. Main features - Air flow from 21,000 m3/h to 39,800 m3/h - Structure and overpressure slats in galvanized steel to avoid premature corrosion. - Propellers made of AISI 430 BA stainless steel. - High quality bearings. - IP-55 three-phase electric motor - V-belts. - Transmission pulleys made of magnesium aluminum. - Engine support with tensioner. - Side inserts for easy transport.

In the fluid dynamics laboratory of our Wasserburg competence centre, we design new fan wheels and turbines and optimise existing systems for performance, energy efficiency and noise emissions. We also develop complete systems of wheels with power units. Our range of tests includes suction operation, pressure operation and also unpressurised measurements. Revolutions up to 40,000 r/min and diameters of up to 250mm are possible. In our prototype department, we are able to simulate or modify the environmental circumstances of the fan wheels or turbines, thus achieving optimal operational conditions. Furthermore, we carry out mould-flow analysis, use ANSYS from external partners for the flow simulation and establish the fault probability and fault effect with FPFEs. New: Development of blower systems and optimization of ventilation systems.