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History of Air Conditioning |
It seems that people have always wanted to be cool in the hot weather. Those ancient Romans who were rich enough, circulated water through their house walls. Persians went a step further by using wind tunnels to direct air onto water-filled ground-level cisterns in their courtyards.
In more modern days - if you can call the 1800's modern - Michael Faraday, a British scientist discovered the basics of refrigerative cooling. John Gorrie, a physician invented an ice machine to cool off his patients. He probably had lots of patients but not much success with commercialising his invention because his financial backer died. After these visionaries died it took another 50 years before air conditioning was invented for factories.
Both printing plants and fabric manufacturing needed temperature and humidity controls to work successfully, and Willis Haviland Carrier invented the first commercial air conditioning plant in 1902. These first units used dangerous chemicals that could be fatal to humans when leaks occurred. While safer chemicals were eventually found and used, it was not realized for some time that they had an adverse effect on the ozone layer. Soon other chemicals, safe for the ozone layer, were being used.
Improvements are still happening and it is planned that by 2020 all air-conditioning chemicals will be completely safe for both humans and our environment. | | Author Info: Find out more about air conditioners and home climate control benefits at Advantage Air (http://www.advantageair.com.au). |
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