Every commercial space, industrial setup, factory complex need to have a ventilation system in place as an outlet for all the dust particles and strong odour generated from the manufacturing process. Also, it is necessary to vent out the excess heat generated by the complex is very important. The industries have traditionally used mechanical systems including large blowers and fans. These are considerably costly and noisy mode of ventilation. With the increasing prices and the shortage of energy required to operate these systems, new alternatives need to be explored. That's how the invention of natural ventilation systems which is a green, energy-saving alternative came into being. A well-known name in this domain, airocle specialise in industrial ventilation. There are other companies also entering into this market; you can review their product range at www.consumersearch.com.
The natural ventilators work on the principle of the tendency of hot air to rise which creates an updraft, and the colder air stays down. As the warm air rises, ventilator in the ceiling provides a vent to hot stale air to escape outside. To fill in up the vacuum created, ventilator automatically draws cooler and cleaner air from the ground. And the best part of it all is, this procedure does not require any power to operate. It is low in maintenance and keeps the atmosphere cooler and healthy for the workforce working there. These options are less costly and generate less noise making it an ideal choice for industrial setups. There are two types of natural ventilator,
Wind-driven ventilator The blowing air around the building hits the windward wall creating a positive pressure. As the wind circulates the building, it creates a sucking effect on the opposite side wall. With the opening in the wall or ceiling of the windward wall, the fresh air gets into the room and exits from the opening in the smooth wall, creating a balanced atmosphere inside. Certain pre-requisites for a building using wind driven ventilator are: • Location which should be located in a windy area • Building form and dimensions, the walls should not be very deep and dense, as this would avoid evenly distributing the fresh air in all parts of the building. • Window and inlet type, size and shape • Construction method.
Stack ventilation There are two deciding factors in this sort of ventilation option – temperature difference and humidity difference. This temperature difference is created by the heat generated by the occupants and the machinery inside. As it's the natural tendency of hot air to rise, the cooler air is sucked in from the opening below.
The basic requirement of stack ventilator includes: • The inlet should be located lower and the outlet at a height. • The distance between the vents should be enough to let the stack effect happen • Ridge and skylight vents should be used for these ventilators.
Certain advantages of industrial natural ventilators are: It keeps the air circulating inside the facility, making the atmosphere comfortable inside. There is minimal maintenance required, hence it is a cost-efficient option. There is no dependency on power to operate these ventilators, therefore operate round the clock, day or night, rainy day or sunshine. These are self-operational and does not require anyone to handle it dedicatedly.