‘Air in Motion’ makes and sells solutions to separate temperature and moisture to and from cold stores and freezers using air. “They’re all customer-specific solutions with sustainability being the main focus,” Kris van de Rijt explains. “With this solution, we supply energy savings and comfort. The other advantages are mainly a nice bonus.”
Reducing energy loss and keeping moisture out
In order to reduce loss of energy as much as possible, freezers and ante-rooms need to be separated well from each other. “The ideal situation is a fully closed-off door, because loss always occurs when the door opens. With our air doors, we can reduce this loss by 80%. Especially with passages where there’s a lot of transport and so a lot of loss occurs, savings are high.” An AFIM air door consists of an air jet (or multiple air jets) from top to bottom, causing an efficient separation to be created in a passage, for instance from a -25 degrees Celsius freezer to a +4 degrees Celsius room. “On the one hand the high temperature is kept out, and on the other hand the low temperature is kept in. The moisture is also kept out of the freezer with an air door,” Kris says. “Moisture always accompanies the transport, really. This is completely unwanted. We can also stop moisture by about 80%.”
Kris says this solution is mainly useful for companies where products have a short throughput rate. “For instance, companies with a lot of transport between a conditioned ante-room and a cold store. The doors are almost always open in such a company. With an air door, it’s possible to control the conditioned zone. The air door starts working as soon as the door opens, and stops when it is closed again. There are even companies that don’t even have a normal door anymore, where the air door is always in operation.” In addition to the energy savings, the long lifespan of an air door is a big advantage, he says. “It lasts for about 35,000 operational hours, an average of 10 to 15 years. That means the air door does better than the speed door and strip curtain.”
More information:
Air in Motion
Kris van de Rijt
