Supermarket chain Carrefour considers a pleasant indoor climate one of the cornerstones to optimize the shopping experience of customers. Prihoda fabric ducts were installed in the Koksijde Carrefour. Below is an excerpt from a press article about this project.
Cooling and heating with a single duct
Wesley Verlez is sales manager at Xilio, the distributor of Prihoda. He explains the technique: ‘Prihoda’s membrane channels combine two techniques. The upper side of the channel has microperforations to distribute the cold air through displacement during cooling. Larger perforations were made in the underside, which heat through induction. Internally, in the middle of the air duct, there is an impermeable flap which always covers one-half of the duct. At the beginning of the installation, this flap is connected to a servomotor controlled by the air group. If the sensor decides to cool, the arm lowers the flap, forcing the air downward and distributing it via displacement through the micro-perforations. If the air group decides to heat, the reverse happens, and the flap is brought upward. The warm air now quickly heats the room via the larger perforations at the bottom. The result is draft-free operation in cooling and heating, leading to an energy advantage in heating, particularly, because less stratification occurs. In addition, air speeds can be higher in fabric ducts, allowing smaller duct diameters.’
‘Working with fabric ducts is also very useful for us as installers. They are very compact to transport, and their low weight makes on-site installation a breeze. Setting is very simple, and no time-consuming grid assembly is required. This saves many man hours. Maintenance is also easy for the customer. Even in polluting industrial conditions, they only need to be removed and cleaned occasionally. And in supermarkets, even this is not necessary.’
‘Important for customers and personnel’
For Hypermarket Carrefour, there are several factors that play a role in the choice of fabric ducts. Jan Geeraerts, technical manager, explains: ‘We do not just want a pleasant indoor climate for our customers, but it is also important that personnel can do their work in an optimal atmosphere. In addition, fabric ducts are also visually attractive; they don’t have that cold industrial appearance.’