Air Conditioning

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In common discussion, when the term cooling is pointed out, individuals automatically take it to suggest cooling room temperature. Technically talking, however, air conditioning is the process of regulating space temperature level with numerous means that entail air flow, cooling and heating. In building and construction, it is described as HVAC.

In 1902, The New York Stock Exchange was the really initial structure to use air conditioning systems that separately cooled down as well as heated the air. Later on that year, Willis Havilland Carrier installed the really initial electrically-run cooling unit at a printing plant. The device not just cooled down the air yet additionally managed the humidity.

 

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In those times, a/c was primarily used in producing centers to boost items by regulating the effects of humidity, thus, raising employee productivity. It was several years later, in the 1950s, that houses as well as vehicles started to be fitted with the air conditioning technology.

An a/c device cools the air via a cooling agent, a compound that changes the temperature level of the air. In the beginning of its advancement, air conditioning devices used unsafe gases such as ammonia and also methyl chloride as cooling agents. They were soon replaced by another kind of chemical, the patented material called Freon.

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Freon is risk-free for human beings. However, it is unsafe to the environment. When launched into the ambience, this chlorofluorocarbon gas is thought to be a contributing factor to the thinning of the ozone layer. A lot of air conditioning units marketed today still utilize this type of gas, especially the HCFC R-22. It is said that conservationists will have to wait until 2010 to see the overall removal of HCFC R-22 in air conditioning untis.

Air conditioning devices have different types of refrigeration cycles. The initial type utilizes a heat pump that drives out hot air from the room as well as blows in cooled down air though a compressor. The 2nd kind pumps in a refrigerant. When the refrigerant evaporates, it takes with it the hot air and leaves cooled down air.