The cafe ventilation project should be carried out taking into account the following features: both the room for visitors and the kitchen should be ventilated, smoking and a large flow of visitors are allowed in the room. If ventilation is installed in a cafe in a residential building, the designer will have to take care of the quiet operation of the equipment and the most aesthetic outlet of the ventilation pipes. The ventilation system must comply with applicable sanitary regulations.
What equipment to choose for ventilation of a cafe
The ventilation system in the cafe should provide optimal conditions for the stay of visitors. So, a special hood is installed in the kitchen, preventing the spread of odors into the hall, and in the hall there is another hood that catches the smells of cigarette smoke. The ventilation system in the cafe should not spoil the interior; it should be harmoniously integrated into the design of the hall or hidden with boxes. Supply and exhaust systems with heat recovery are often installed in modern cafes.
According to the technical standards, the exhaust pipes for ventilation of a cafe in a residential building must be brought to the roof level of the building.
Such a solution can disfigure the facade of the building, and it is quite expensive. When calculating the ventilation of a cafe, you can include in the project the filtration of the air blown out of the cafe. Then the pipe outlet does not need to be lifted. But silencers are certainly mounted on duct fans. Otherwise, the noise from their work will disturb the residents of the house.
When installing the ventilation of a cafe in a residential building, you should avoid bulky powerful fans of the "snail" type, which make noise and vibrate, causing discontent among residents.
Cafe ventilation calculation
When calculating the ventilation of a cafe, the following indicators are taken into account:
- Room area;
- Estimated number of visitors;
- Availability of equipment.
The ventilation design for cafes is different from that of large restaurants. So, if the area of the cafe is small, it is quite enough to install a powerful air flow supplied to all rooms at the same time. This will significantly save on equipment and future operation. It is possible to further reduce the cost of installing a ventilation system in a cafe by combining air conditioning and ventilation in one system.
Cafe ventilation requirements
When calculating the ventilation of a cafe in a residential building, the following indicators are taken into account:
- All fans are installed in soundproof boxes and equipped with mufflers;
- Radial exhaust systems with external powerful motors are not used. Fans are mounted directly into the ventilation duct or under the ceiling of the hall;
- Ventilation ducts for air outflow and air inflow are equipped with different, air jets do not mix in them. The output of the channels is brought to the roof of the house. The seams are hermetically closed so that odors do not penetrate the windows of the inhabitants of the house, and water does not penetrate into the ventilation duct during rain or snow.
