Ventilation
Topic -Ventilation It is a process in which air is replaced or exchanged for a particular area to control moisture, odours, smoke, heat, dust airborne bacteria, carbon-di-oxide and maintaining oxygen level. It has two types first one is 1)natural ventilation in which air is exchanged naturally, no external machine is used 2) the second one is forced Ventilation (Mechanical Ventilation) in which air is exchanged forcefully by means of fans. Ex. Kitchens exhaust, Basement (car park) exhaust. Types of ventilation Fan mostly used 1) Wall Mounted Propeller fan In this type of fan air flows in parallel to the shaft. A wall-mounted fan is a machine used to create flow within a system, typically a gas like air. It consists of a rotating arrangement of vanes or blade which act on the fluid. Usually, it is contained within some form of housing or case. This may direct the airflow or increase safety by preventing the object from contacting the fan blades. Mostly thes...