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    An air conditioner is basically a refrigerator without the insulated box. It uses the evaporation of a refrigerant, like Freon, to provide cooling. The mechanics of the Freon evaporation cycle are the same in a refrigerator as in an air conditioner.improves in the existing building air-conditioning system automation the aspect.The energy conservation may say is the building character automatic control system starting point and the home to return to. It is well known, in the intelligent construction, HVAC (heating, ventilates and air conditioning) the system consumes to have to occupy the building consumption total energy enormous partial proportions,approximately about 50% ~60%. Specially cold: East the unit, the cooling tower, the circulating water pump and the air conditioning unit, the new atmosphere unit, all are consumes energy the big household. Therefore really has essential develops one effective air-conditioning system energy  21664
    conservation method, especially uses is in When the temperature outside begins to climb, many people seek the cool comfort of
    indoor air conditioning. Like water towers and
    power lines, air conditioners are one of those
    things that we see every day but seldom pay
    much attention to. Wouldn't it be nice to know
    how these indispensable machines work their
    magic? In this article, we will examine air
    conditioners -- from small to huge -- so you
    know more about what you're seeing!
    The Many Faces of Cool
    Air conditioners come in various sizes,
    cooling capacities and prices. One type that we
    see all the time is the window air conditioner.
    Window air conditioners are an easy and
    economical way to cool a small area. Most
    people who live in suburban areas usually have
    one of these in their backyard:
    If you live in an apartment complex, this is
    probably a familiar sight: Most businesses and
    office buildings have condensing units on their
    roofs, and as you fly into any airport you notice
    that warehouses and malls may have 10 or 20
    condensing units hidden on their roofs:
    And then if you go around back at many
    hospitals, universities and office complexes,
    you find large cooling towers that are
    connected to the air conditioning system:Even though each of these machines has a
    pretty distinct look, they all work on the same
    principles. Let's take a closer look.
    The Basic Idea
    An air conditioner is basically a
    refrigerator without the insulated box. It uses
    the evaporation of a refrigerant, like Freon, to
    provide cooling. The mechanics of the Freon
    evaporation cycle are the same in a refrigerator
    as in an air conditioner. According to the
    Merriam-Webster Dictionary Online, the term
    Freon is generically "used for any of various
    conditioner. According to the Merriam-Webster
    Dictionary Online, the term Freon is
    generically "used for any of various
    nonflammable fluorocarbons used as
    refrigerants and as propellants for aerosols."
    This is how the evaporation cycle in an air
    conditioner works (See How Refrigerators
    Work for complete details on this cycle):
    1.The compressor compresses cool Freon
    gas, causing it to become hot, high-pressure
    Freon gas .
    2.This hot gas runs through a set of coils so
    it can dissipate its heat, and it condenses into a
    liquid.
    3.The Freon liquid runs through an
    expansion valve, and in the process it
    evaporates to become cold, low-pressure Freon
    gas .
    4.This cold gas runs through a set of coils
    that allow the gas to absorb heat and cool down
    the air inside the building.
    Mixed in with the Freon is a small amount
    of a light weight oil. This oil lubricates the
    compressor.
    Window Units
    A window air conditioner unit implements
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