AIR HANDLING UNITS IN DOHA QATAR

Air Handling Units Description: An Air Handling Unit (AHU) is used to re-condition and circulate air as part of a heating, ventilating and air-conditioning system. The basic function of the AHU is to take in outside air, re-condition it and supply it as fresh air to a building. All exhaust air is removed, which creates an acceptable indoor air quality. Depending on the required temperature of the re-conditioned air, the fresh air is either heated by a recovery unit or heating coil or cooled by a cooling coil.So where do we find AIR HANDLING UNITS ?Air handling units, which usually have the acronym of A.H.U are found in medium to large commercial and industrial buildings. They are usually located in the basement, on the roof or on the floors of a building. AHU’s will serve a specified area or zone within a building such as the east side, or floors 1 – 10 or perhaps a single purpose such as just the buildings toilets. Therefore, it’s very common to find multiple AHU’s around a building.Some buildings, particularly old high rise building, will have just one large AHU, usually located on the roof. These will supply the entire building. They might not have a return duct, some older designs rely on the air just leaking out of the building. This design isn’t so common anymore in new buildings because it’s very inefficient, now its most common to have multiple smaller AHU’s supplying different zones. The buildings are also more air tight so we need to have a return duct to regulate the pressure inside the buildi... Read More...

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