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| A split-type Air Conditioner. (Picture from: http://bit.ly/1heFwtT) |
For
added comfort while indoors, where AC (Air Conditioner) plays an
important role. As early as Roman times, air conditioning systems have
been found, although very simple. How, by making the reservoir water
flowing inside the walls of the home thereby lowering the temperature of
the room.
At
that time only certain people can get the luxury of air conditioning
systems. Because construction costs are very expensive. Of course, due
to the abundant availability of water required and the unusual shape of
the building.
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| Three-quarters scale model of Gorrie's ice machine. (Picture from: http://bit.ly/1g2UxTY) |
The
use of air conditioning started to find the technology in 1820 when
British scientist named Michael Faraday discovered a new way to cool the
air by using ammonia gas. Then, in 1842, a doctor found a way to cool
the room at the Apalachicole Hospital, in Florida, United States. He is
Dr. John Gorrie to discovery the idea of air conditioning systems.
Unfortunately, he has not had time to realized his invention, he passed
away in 1855.
An
engineer from the United States, Willis Haviland Carrier was the one
who perfected the Dr. John Gorrie air conditioning systems concept.
Initially, the forerunner of the air conditioner is used not for the
benefit of human comfort, but for the purposes of printing and industry.
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| Willis Haviland Carrier. (Picture from: http://bit.ly/1g2UxTY) |
Indeed,
the use of air conditioning for household developed around 1927 and
used for the first time in a house in Mineapolis, Minnesota. Since then,
the use of air conditioning started to bloom presented in the home or
office building. Moreover, in areas with higher temperature.
If
the air conditioner simplified way of working is functioning set of
tools with the aim of lowering the temperature of the room, such as the
compressor, condenser, orifice tube, evaporator, expansion valve and
evaporator.
While
the main function keys of AC is refrigerant usually a fluorocarbon
(freon). Cooling begins with the entry of air into the refrigerant
compressor, and compressed and then discharged in the condenser. In the
condenser, the refrigerant will change from vapor phase to liquid. From
here, heat of vaporization of refrigerant is passed through an expansion
valve and turned again into the vapor phase, and then flowed into the
evaporator to pick up the energy of the substance so that the enthalpy
down. This process is repeated continuously until the temperature of the
cooling occurs as desired.
Air
conditioning technology also evolve with the changing times. Judging
from the shape, the type of air conditioning can be divided into several
types, namely split wall or mounted on a wall, cassette, split duct,
portable, and floor standing. While the technology can be classified in
AC inverter, standard, low voltage, and AC VRV. *** [EKA | FROM VARIOUS SOURCES | PIKIRAN RAKYAT 22052014]
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