Air Conditioning

UNIT – IV

Chapter – 19

AIR CONDITIONING

 History

The art of Air Conditioning developed only gradually from the predecessor arts of cooling, heating and ventilating. While quick developments took place in the manufacture of ice, a few machines appeared, which chilled air by blowing it over brine. In the later half of the 19th century, the developments in the art of humidifying air along with the invention of devices for measuring pressure, temperature and humidity took place.

Societies were formed such as the American Society of Refrigerating Engineers (ASRE) in 1904. In 1911, W.H. Carrier who is known as the Father of Air Conditioning, presented his remarkable paper on Psychrometric Formulae in an ASRE conference. As far as Air Conditioning for human comfort is concerned, it got off the ground in motion-pictures theatres in 1920. In the last 100 years, the industry has grown in leaps and bounds all over the world.