Compressed natural gas
Compressed Natural Gasis gas under pressure that is clear, odorless, and non-corrosive. Vehicles can uses natural gas as either liquid or gas.
Produced by natural gas-and-condensate wells, oil wells, and coal bed methane wells. Compresses natural gas is stored in small fueling location on vehicles; CNG is commonly stored in thick-walled steel, aluminum, or tanks.
Positive side to CNG is that it has a very low cost and is cleared burning than gasoline or diesel fuel, when the cars used the compressed natural gas is used I shows an average reduction in ozone-forming emissions of 80 percent compared to gasoline. It cost 40 percent less than gasoline.Compressed natural gas flammable when it mixes with air, only when the mixture is within 5-15 percent natural gas. But when it is lower than 5 percent it is not flammable, when it is more than 15 percent there’s not enough oxygen to allow it to burn its because it is lighter than air it quickly dissipate when release form tanks
Compressed natural gas Availability
CNP is sent throughout the nation an extensive network of pipelines - to have enough to drive a around town. Natural gas has to be compressed to around 200 times atmospheric pressure or even more the tank aboard large bus. Thant amount of compression is found miles under the ocean which require special compressor to be get in the pipeline.
First CNG powered vehicle was brought out during the late 1993, it had to drive 35 miles roundtrip to nearest public refueling station, by 1998 there has been stations added that lets you drive nationwide clean and efficient around the U.S.
Positive side
Is that it is very good on the engine, which gives it longer life and lower maintenance cost. It is the least expensive alternative fuel not counting electricity. You will pay half the price of gasoline for an equivalent amount in CNP. When used natural gas there is only a 10% lower power output than the gasoline version. If by any chance a leak occurs during your driving it has a high likely that CNP will Dissipate harmlessly into the air not having any harm into the ignition or will not cause expulsion