Air handling units (AHU) ensure optimal temperatures in many fields. They are an important component of engineering education. Prof. Gerhard Fetzer, Dean of the department, at the dedication ceremony: “We now have a laboratory building in which we can provide general conditions for the practical part of the course that make studying and lab work lots of fun!” AHU with sight glasses The housing of the AHU was equipped with extra show glasses for the laboratory to allow students to see processes that are normally invisible. With them, it is possible to observe rotors, filters, heaters and coolers while they are functioning, in addition to the unit’s technological highlights – including fans from ebm-papst. Thank to this air handling unit, the students In Esslingen have the opportunity to get ready for their futures careers based on state-of-the-art technology. The future building services engineers must meet the challenges of heating, air conditioning and ventilation technology and sanitary engineering in addition to those of energy and water supply. More efficient, latest-generation centrifugal fan In AHU, two energy efficient RadiPac centrifugal fans take care of air delivery. One of them is equipped with aluminum airfoil blades. The motor’s position in the impeller achieves a good compromise between overall fan unit compactness and the most aerodynamically beneficial location for the motor. At the impeller exit, the air is guided towards the air conditioner's main current direction, which significantly improves pressure-loss-related flow deflection. Membrane humidifier ensures precision humidification The unit also contains a pioneering AL-KO HYGRO OPT membrane humidifier that humidifies rooms without droplets, precipitation or aerosols. Membrane humidifiers contain desalinated and de-mineralized water in extremely durable membrane pockets that reliably separate the water flow from the air duct. Gaseous water penetrates the membrane adiabatically, ensuring precise humidification. This prevents the formation of Legionella bacteria in the air duct.