Air conditioning is the cooling and air for comfort, the term can refer to any form of cooling, heating or ventilation that modifies the condition of air. An air conditioner is an instrument, system, or machinery designed to calm down the air temperature and humidity within an region, typically using a refrigeration cycle but sometimes using evaporation, commonly for comfort cooling in buildings and motor vehicles.


In ancient Rome the concept of conditioning of air is known to them, where channel of water was circulated through the walls of certain houses to cool them. During the 19th century the advances in chemistry let to development of modern air conditioning, and the first large-scale electrical air conditioning was invented and used in 1902 by Willis Haviland Carrier.

Humidity control

Air conditioning tools usually reduces the humidity of the air. From the processed air the coil evaporator condenses the water vapor, (much like an ice-cold drink will condense water on the outside of a glass), sending the water to a drain and removing water vapor from the cooled space and reducing the relative humidity. Since the human perspire to make himself cool by the evaporation of perspiration from the skin, drier air (up to a point) improves the comfort provided. The comfort air conditioner is designed to create a 40% to 60% relative humidity in the occupied space.

Air conditioners automobiles

Air conditioner systems are designed in a way that the driver and or passengers get to feel more comfortable during uncomfortably warm humid or hot trips in a vehicle. Often air conditioners are fitted in cars in hot climate. There has been much debate and discussion on what the usage of an air conditioner does to the fuel efficiency of a vehicle. Wind resistance and engine power and weight are the factors that have to be factored into finding the true variance between using the air conditioning system and not using it when figuring out difference in actual gas mileage. Other factors on the impact on the engine and an overall engine heat increase can have an impact on the cooling system of the vehicle.

Air conditioning applications

Air conditioning applications are based on what one wants- process or comfort.

(a) Comfort applications provide a building indoor environment that remains relatively constant in a range preferred by humans despite changes in external weather conditions or in internal heat loads.

(b) Process applications offer a suitable atmosphere to carry out the process, regardless of internal heat and humidity loads and external weather conditions. Although often in the comfort range, it is the needs of the process that determine conditions, not human preference. Process applications include these:

Portable air conditioners

A portable air conditioner is one on wheels that can be easily transported inside a home or office. Presently you can get them with capacities of about 6,000 to 60,000 BTU/h (1,800 to 18,000 watts output) and with and without electric resistance heaters. Portable true air conditioners are available in two patterns, split and hose. Evaporative coolers are also portable.

Does not matter which ac compressor you choose to get your purpose fulfilled the only thing to be considered is that you must get the best priced ac condenser .And always consult various sites and other users before buying.