Ventilation is the process of replacing as well as exchanging air in any room or space to provide clean air. Rooms and buildings require indoor quality air thus, ventilation has to be a key factor for consideration during construction. Among the various methods of ventilation and air conditioning, the most used are the fans and blowers. The 19th Century brought with it some of the topmost sources of ventilation equipment which include roof fans, supply fans, chimney exhaust, kitchen fans, ceiling fans, centrifugal blowers, inline fans as well as utility sets.
Vane axial, propeller tube-axial and centrifugal are the classifications of fans used for air conditioning.
The practice of providing quality ventilation since the early 19th Century has largely been done by Brooklyn Fans and Blower Sales Company. When it comes to the functioning of a fan, its output can be defined in various ways. These include Air per unit of time, static pressure, full of pressure, speed and power of the input signal. Fans which are recommended and suited for high usage applications needing high capacity are better classified as commercial exhaust fans. Usage of the Commercial Exhaust fan can be extended to industrial sites as well as domestically if the situation and its requirements demands so.
Manufacture of industrial and commercial ventilation products as well as the appropriate software that help in the running and maintenance of ventilation products have been attributed to Penbarry.
Besides other functions, exhaust fans function to remove any unwanted heat as well as humidity from any enclosed space. Factors that one considers when purchasing and installing an exhaust fan depends on the volume of space, environmental factors such as fume levels and humidity, as well as how the space is being used. A buyer is required to know the cubic feet per minute(CFM) requirements for the particular application. As compared to residential exhaust fans, commercial exhaust fans are highly recommended as they have a higher CFM rating.
The main difference between a fan and a blower therefore is that a fan moves huge amounts of gas with a low increase in pressure while a blower is a machine that moves gas with a moderate increase in pressure. Electric motors, hydraulic motors, internal combustion engines and handcranks among many other methods, are some of the commonly used ones in powering of fans. Fans may becomes ineffective in cooling of the body if the surrounding air is near body temperature and contains high humidity, hence it is not recommended for use during periods of very high heat and humidity. This is because, contrary to popular beliefs, fans do not actually cool people but work by evaporating cooling of sweat and increased heat convection into the surrounding air due to the airflow from the fans.