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  2. Automotive air conditioning - Wikipedia

    en.wikipedia.org/wiki/Automotive_air_conditioning

    R-12 was used in automotive air conditioning systems until the mid-90s when production was banned by the government and replaced with a new refrigerant, R-134a. R-12 can still be bought and sold but is no longer produced. This makes R-12 very expensive and hard to find. [41] R-12’s global warming potential number is very large at about 11,000 ...

  3. Scroll compressor - Wikipedia

    en.wikipedia.org/wiki/Scroll_compressor

    It is used in air conditioning equipment, as an automobile supercharger (where it is known as a scroll-type supercharger) and as a vacuum pump. Many residential central heat pump and air conditioning systems and a few automotive air conditioning systems employ a scroll compressor instead of the more traditional rotary , reciprocating , and ...

  4. Compressed-air car - Wikipedia

    en.wikipedia.org/wiki/Compressed-air_car

    Compressed air cars are emission free. They also do not require a connection to the electric grid. A wind turbine or other renewable energy source can directly drive an air compressor or hydraulic pump. Compressed air cars do not rely on petrol stations or an electric grid. While centralized infrastructure might not be needed, it is an option.

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  6. Crankcase heater - Wikipedia

    en.wikipedia.org/wiki/Crankcase_heater

    Some air conditioning equipment manufacturers install crankcase heaters either in the compressor (insertion type), or mount them externally around the base of the compressor (bellyband type). The two wires of the heater are wired directly to the input side of the contact from the main power supply, and power is always supplied to the heater.

  7. Air conditioning - Wikipedia

    en.wikipedia.org/wiki/Air_conditioning

    The units went on sale in 1932 at US$10,000 to $50,000 (the equivalent of $200,000 to $1,100,000 in 2023.) [20] A year later, the first air conditioning systems for cars were offered for sale. [34] Chrysler Motors introduced the first practical semi-portable air conditioning unit in 1935, [ 35 ] and Packard became the first automobile ...