The Types of Centrifugal Fans for HVAC & Performance Requirements

The heating ventilation and air conditioning systems play an integral role in both industrial and domestic applications. Their efficiency and reliability is determined by the types of fans, which have been installed in their systems.

Both fans and blowers can be used in the HVAC to move air. This air can be of different pressure depending on the cooling requirements a particular system should achieve. Without these two components, then the air handling equipment that draws or brings fresh air in the building.

The use of centrifugal fans for HVAC is common in most of these systems. Normally, the fans are installed on the exterior section of the ventilation unit. Alternatively, they can be installed above the ceiling where they can be used as part of the duct system. The exact position where any of these components can be installed will be determined by their designs.

In the air handling systems, depending with the situation at hand, the heated or cooled air is subjected to a unidirectional flow, which can be achieved by the centrifugal fans for HVAC.

There are very many types of fans that are used in the HVAC systems and they include: ventilation, plenum, duct, roof, exhaust, inline, tube axial and vena axial fans. The choice of a particular fan will depend on their efficiency and cost effectiveness. It will depend on the operational factors the end user consider to be scares and should be conserved.

The performance specifications

This is crucial aspect in the analysis of the centrifugal fans for HVAC. The fans listed above differ in very many aspects such as construction and drive options. This crucial feature is analyzed based on the key fundamental factors that affect a fans performance and these include air flow rate, media temperature and static pressure. Some of the key factors to consider include:

1. The is flow rate; this is the rate at which air moves within the HVAC system
2. Static pressure; this is the pressure that is equal to the quantity of air supplied to and removed from the space
3. The media temperature, which is expressed as a range
4. The diameter of the fan

The most common styles of centrifugal fans for HVAC systems that are commonly used in these applications include the following

1. The forced draft; this is basically the movement of air under pressure
2. The induced draft; this is the movement of air by induced partial vacuum.

With all these facts in mind, it will be easier to choose and equipment that can fulfill the requirements of your HVAC systems.