Ventilation of large objects, such as production buildings and constructions, office centers and housing complexes, is connected with movement of considerable volumes of air. Neither ordinary conditioners, nor, especially, household fans will cope with this task. Here the special powerful equipment designed and placed in a special way is necessary.
Industrial ventilation can be both all-exchange, and local. In the first case the system services the room in general, and in the second only its specific places. Also it should be noted that though ventilation can be as stitched (to the room clean air moves), and exhaust(respectively the contaminated air is removed), as a rule in practice the mixed type, i.e. forced-air and exhaust is used.
The problem of industrial ventilation consists in supporting the structure and condition of air meeting hygienic requirements in the production room. Except hygienic, requirements following from features of the production technology, from product storage conditions, and also safety of the equipment and building constructions can be imposed.
Calculation of industrial ventilation is made at stage of preparation of basic data for the project.