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TECHNICAL DESCRIPTION AIR CONDITIONER Air conditioning is the conditioning of air within a defined space usually a residence or a place of business Conditioning usually involves heating or cooling humidifying or dehumidifying and filtering or cleaning air If you have a central air conditioner your system cools and dehumidifies the defined space Following some background this technical description provides details about three main parts of the air conditioning unit Cooling Tower Compressor Chilled Water System Background An air conditioner is basically a refrigerator without the insulated box A typical air conditioner is doing exactly the same thing in exactly the same way You can see a typical air conditioner with this diagram Figure1 air conditioner diagram Source YorkFigure 2 air conditioner Source Author Cooling Tower In air conditioning systems air is used to dissipate the heat from the outside coil In some systems the efficiency can be improved significantly by using a cooling tower The cooling tower creates a stream of lower-temperature water This water runs through a heat exchanger and cools the hot coils of the air conditioner unit It costs more to buy the system initially but the energy savings can be significant especially in areas with low humidity over time and the system pays for itself fairly quickly Cooling towers come in all shapes and sizes Figure 3 cooling towerFigure 4 cooling tower Source AuthorSource How stuff works However they all work on the same principle A cooling tower blows air through a stream of water so that some of the water evaporates Generally the water trickles through a thick sheet of an open plastic mesh and air blows through the mesh at right angles to the water flow The evaporation cools the stream of water Because some of the water is lost to evaporation the cooling tower constantly adds water to the system
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