Question:

How does the air conditioner work?.....can anyone help me...what exactly is the working of a compressor...?

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please help me....thnx a ton

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  1. By the Ideal Gas Law, when a gas is compressed it heats up in order to maintain its internal energy (the number of collisions between molecules increase, and so does the temperature). This work is done by the compressor. The hot fluid runs through a heat exchanger, which dumps the heat outside and cools the high pressure gas to about the exterior temperature. Then the fluid goes through an expansion valve and depressurizes, which (again by the ideal gas law) makes it very cold. (You can feel this effect by spraying a can of compressed air for cleaning computers, it gets really cold.) Then the cold low pressure gas feeds through another heat exchanger, cooling the air entering the room; after that it reenters the compressor and the cycle starts again.

    So, quite cleverly, an A/C unit makes things cold by making them hot! Likewise, a dehumidifier works by ADDING moisture to air and then decompressing it to wring the water out. These were both the innovations of Mr. Carrier, whose firm remains one of the major players in climate control to this day.


  2. Just l.ike your refrig. & the huge Freezers and coolers I design.

    The refigrant, usually r-22 is under pressure and it is a liquid.

    When it goes through a small opening, it flashes to vapor which picks up heat. ( like sweating does to you.)

    the main heat is latent.

    Now that  it is a vapor, the compressor compresses it until it is hotter than the air around the condensor.

    It then turns back to a liquid under that pressure and cooling effect and remains hot until it expands and vaproizes the next

    time and the next,,,etc.

  3. An air conditioner cools/ heats the air in an enclosure. To cool, it uses a coolant which gets vaporized easily by heating and can be converted to its original liquid form by compression. This liquid coolant is circulated through copper pipes around the object to be cooled and gets vaporized by extracting heat from the surrounding. The vapor goes to a compressor where it is pressurized to the liquid form and recirculated. This cycle continues till the required degree of cooling (temperature set) is achieved. When heating is needed, a separate heater is started.

  4. An air conditioner has a long winding tube filled with a refrigerant.  A compressor is basically a pump for the refrigerant.  By pumping it, it increases its pressure.  As it expands, it absorbs heat from warm air passing over the pipes.  Once it has expanded, it needs to be compressed again, so it is returned to the pump.

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