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Your A/C system may seem complicated, and it is, but it's also easy to understand, and has some parts that you can service yourself.How it Works, Basically Any system that lowers temperature operates in similar fashion.This ozone blocks harmful ultraviolet rays from reaching the Earth.While the Earth’s atmosphere protects and defends against extreme temperatures like those on the Moon, Earth’s heating and air conditioning systems create an even more comfortable atmosphere indoors.Technology is applied in other sectors, such as commercial and industrial refrigeration, heat pumps for water heating etc., it may even save up to 3% of the world’s greenhouse gases.

Examples include rear reversing cameras, air conditioning, navigation systems, and in car entertainment.The Alliance for CO Butane and propane are very flammable petroleum products; they are used as fuels for gas barbecue grills, disposable lighters, etc.Like gasoline, to which it chemically is closely related, propane has a tendency to explode if mixed with oxygen and ignited in an enclosed container.(It would take much less time to design merely a new air conditioning system to install in a new version of an existing model.) The current total value of the car air conditioning market is estimated to be .5 billion in 2007.Technology requires the design of completely new high-pressure systems whereas so-called "drop-in solutions" (the adaptation of current systems to new substances) are potentially more cost-efficient.First you take a gas, like Freon, and place it in a sealed system. As it's pressurized, it gets hot by absorbing the heat around it.This hot gas is then circulated through a series of tubes that dissipate the heat.The use of highly flammable hydrocarbon gases such as butane and propane as automotive refrigerants raises serious safety concerns.The EPA, in evaluating motor vehicle air conditioning substitutes for CFC-12 (Freon, or R-12) under its SNAP program, has classified as "Unacceptable Substitutes" other "Flammable blend[s] of hydrocarbons" by reason of "insufficient data to demonstrate safety." The EPA defines "Unacceptable" in this context as "illegal for use as a CFC-12 substitute in motor vehicle air conditioners".Cars came into global use during the 20th century, and developed economies depend on them.The year 1886 is regarded as the birth year of the modern car, when German inventor Karl Benz built his Benz Patent-Motorwagen.Without this effect, Earth would probably be too cold for life to exist.Another helpful feature of the Earth’s atmosphere exists about 30 miles above the surface, where ultraviolet light from the Sun strikes oxygen molecules to create a gas called ozone.A car (or automobile) is a wheeled motor vehicle used for transportation.Most definitions of car say they run primarily on roads, seat one to eight people, have four tires, and mainly transport people rather than goods.

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