INDUSTRIAL VENTILATION

General industrial ventilation reduces the concentration of the air contaminants, or controls the amount of heat that accumulates in hot industrial environments, by mixing (diluting) the contaminated air with fresh, clean, uncontaminated air. This ventilation system is also known as dilution ventilation. In industries there is a need to change the indoor contaminated air to make the environment more healthier and comfortable to work. Ventilation is a process of taking the indoor stale air out from that area and insert fresh outdoor air inside the area. The outdoor air can be inserted in that area with filtration and cooling the air or we can insert the air as it is which depends on industry requirement and temperature of air outside. Pressure fans are used to circulate the air from outside to inside and to exit from inside to the outer environment. Level of filtration required is again depend of industry requirement. Filtration requirement is different in hospital than in a chemical industry. So calculations of air changes required will be as per the industry.