An air conditioner is a system or a machine that treats air in a defined, usually enclosed area via a refrigeration cycle in which warm air is removed and replaced with cooler and more humid air. Whether in homes, offices or vehicles, its purpose is to provide comfort by altering the properties of the air, usually by airplane allergies to air conditioner the air inside.
The main function of air conditioner is to change adverse temperature. The 19th century British scientist and inventor Michael Faraday discovered that compressing and liquefying ammonia could chill air when the liquefied ammonia was allowed to evaporate. InPhilippines physician Dr. John Gorrie used compressor technology to create icewhich he used to cool air for his patients.
Air conditioning engineers broadly divide air conditioning applications into comfort and process. Comfort applications aim to provide an indoor environment that remains relatively constant in a range preferred by humans despite changes in external weather conditions or in internal heat loads.
Process applications aim to provide a suitable environment for an industrial or a commercial process, regardless of internal heat loads and external weather conditions.
In both comfort and process applications, the objective is not only to control temperature although in some comfort applications this is all that is controlled but also factors like humidityair movement and air quality. In the refrigeration cyclea pump transfers heat from a lower temperature source into a higher temperature heat sink. Heat will naturally flow in the opposite direction, airplane allergies to air conditioner. This is the most common type of air conditioning. The most common refrigeration cycle uses an electric motor to drive a compressor.
Since evaporation occurs when heat is absorbed, and condensation occurs when heat is released, air conditioners are designed to use a compressor to cause pressure changes between two compartments, and actively pump a coolant around an enclosed system. The cooling liquid, or refrigerant is pumped into the cooled airplane allergies to air conditioner the evaporator coil. Low pressure then causes the refrigerant to evaporate taking the heat with it.
In the other compartment the condenserthe refrigerant vapour is compressed and forced through another heat exchange coil, condensed into a liquid which then rejects the heat previously absorbed from airplane allergies to air conditioner cooled space, airplane allergies to air conditioner.