Air handling unit working principle

What are air handling units? When operating as an air conditioner , the circulation of air through the cold coils in the unit by the air handler lowers the temperature and reduces the humidity inside the building. Starting with simple typical examples and increasing to more advanced designs.

The basic function of the AHU is take in outside air , condition it and supply fresh air to a building. All exhaust air is discharge which secures an acceptable indoor air quality.

In this article we will be covering this topic to understand the basics of HVAC central plant. The BASIC air handling system offers the greatest flexibility and freedom of choice as a block unit. This is, in practice, often the case when heat recovery by means of a rotary heat exchanger or plate heat exchanger is selected.

The principle involves incorporating the functional sections desired into blocks. The treated air will be carried to respective areas through ducting. A rooftop packaged unit or RTU An air handler , or air handling unit (often abbreviated to AHU), is a device used to regulate and circulate air as part of a heating, ventilating, and air-conditioning ( HVAC ) system. In a simple form, an AHU will use a fan to suck in fresh ambient outside air which will then pass through some filters to remove any dirt and dust.

This is achieved by cooling, heating and ventilating the units.

The system that ensures the thermal comfort. These units must be used in perfect condition and within their field of application. The air handling units are designed in compliance with recognised safety rules.

Only qualified technicians may work on the machine. Most air conditioners operate on the principle of gas compression and expansion. This gas is known in the air conditioning and refrigeration industry as a refrigerant. When this refrigerant is compresse it becomes quite cold.

This refrigerant is then sprayed into the heat exchanger using some sort of expansion valve. There are basically two types of air handling unit that are in used and they are the Draw-Through or Blow-Through. In the Draw-Through type, the fan pulls the air through the mixing box, filters and cooling coil before discharging it from the fan outlet to the space to be conditioned or to the ducting network. The design can be vertical or horizontal.

All type air handling devices and components Industrial Equipment company promoter website. The purpose of this equipment is to collect and mix outdoor air with that returning from the building space. The fresh air handling unit offered by our company performs excellent and serves the clients in the best way. Air Handling Units are often called AHU.

As AHU is only part of HVAC, it can be hard to make out a difference between the two.

As the name suggests air handling unit is the box type of unit that handles the room air. Not every HVAC system is created equal. Get the most out of your HVAC system, work with the industry’s leading HVAC company. Some air handling units do not have any heat source inside them at all but have remote heat for zoning.

Working Principle : Outdoor air is filtered and cooled to become fresh and cool air , and then delivered indoor. At the same time, the indoor turbid hot air is exhausted outside. FAHU is the abbreviation used for FRESH AIR HANDLING UNIT. These are usually centralized units employed to induce fresh air quantities to the confines spaces.

They come into picture wherever there are limitations to fresh air intake either directly or through AHUs. Air - handling system is a device used to condition and circulate air as a part of heating, ventilation and air conditioning (HVAC) system. It discusses about the construction of air - handling unit.