Understanding How Air Conditioning Works
Air conditioning is the process of cooling air and removing humidity from a room or a confined space. Its usage can be in a domestic environment like in homes in a room or in a commercial one such as in a business. Air conditioning is used to cool and dehumidify the surrounding in rooms filled with electronic devices that produce a lot of heat. To achieve a more comfortable interior environment this process is used.
To distribute air in a room or a car they use fans. A refrigeration process is used to achieve cooling but at other times evaporation or free cooling can do. Also desiccants can be used which are chemicals used to remove moisture from the air. Referred to as air conditioning is any form of conditioning may it be cooling, dehumidifying or heating a room. Refrigeration air conditioning equipments reduce the humidity of the air that is processed by the system in humidity control.
Water vapor is removed from the cooled air because the relatively cold evaporator coil condenses water vapor from the processed air. In this way lowering of the relative humidity of a room is done. For dehumidification only, there is also a specialized air conditioner.
The refrigeration cycle consists of heat transportation from a colder location to a hotter one.
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Refrigerant is used as the medium that removes heat from places that are to be cooled and rejects it elsewhere. By using a fan warm air is blown into the interior which is supposed to be cooled across an evaporator. This causes the liquid part of the cold refrigerant to evaporate as well therefore causing the temperatures to be further lowered. Modern air conditioners are designed to recirculate cold air in the interior. The others draw air into the room but these do not.
The heat pump unit is a conditioner in which the cycle of refrigeration can be reversed causing heat increase instead of cooling the surroundings.
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Normally they are also referred to as reverse cycle air conditioners. It is significantly more energy efficient than electric resistance heating. More popular in milder winter climates are heat pumps. Another more conventional mode of heating such as natural gas or oil furnace is used with yet the heat pumps since during the winter the icing problems is much more severe. During harsher winter temperatures, these are usually used instead of heat pumps.
Evaporative cooling is the other type of air conditioning and are mostly used in very dry climates. Also they are referred to as desert coolers or swamp coolers. Through a wet pad maybe soaked in water, it draws outside air. The other type is free cooling and it uses pumps to circulate coolants such as water or glycol mix.