Humidity control and cost reductions
”When the absolute air humidity is low, then influenza viruses are living longer and are also easier transmitted between human beings.”
Jeffrey Shaman, Atmospheric Sciences, Oregon State University
This new research underlines the fact that correctly humidified air can result in fewer days lost through illness, which means huge savings for the company.
Non-dripping nozzles and Legionella safe system design
Atomization nozzles in open-ended systems are often installed in areas where water dripping from the nozzles while not in operation is not permitted, ie over machinery or goods in storage. Nozzles used for such application are usually equipped with a check valve inside the nozzle body closing when no pressure is applied to the nozzle. To make the check valve close immediately after taking the nozzles out of operation, pressure has to be relieved from the nozzle line. The figure below shows the Danfoss 3/2-way valve principle. As the valve stays open to the atmosphere when not energized, water can be completely drained from the nozzle line. In such case the valve must be installed at a lower position than the line, and an automatic venting valve is added at the end of the line. Draining the system from standing water prevents Legionella bacteria from growing in the line during longer periods of shutdown. In case the water is to be kept in the line to resume immediate spraying after shutdown, the valve must be placed at a higher position than the line, or a check valve must be added to the valve drain