A fuel is a vital element that is burnt or exploited in order to make the vehicles moving. The type of the fuel used in the automobile depends upon factors like the engine type of the car. Majority of the cars today is powered by gasoline and diesel. This is because most of the automobiles today are designed with internal combustion engines. Moreover there are some other sources of fuel as well that are also used in automobiles like ethanol, bio diesel, propane, C N G, solar power, and hydrogen.
The selection of the fuel is made primarily on few main concerns like cost/benefit ratio; the lower the ratio the more advantage car users can make. Also the selection criterion is based on the availability issue of the fuel and how much it can be exploited; for the same fact solar cars have not yet hit the main market, it is due to the reason the whole surface area of the solar car even with the perfect material absorber can not yet deliver such power which is normally needed by the consumers. This is the reason solar energy can not be used solely alone to drive the vehicle instead some other fueling source like external electric power is also embedded with the solar mechanism to deliver energy to the car.
Gasoline is consumed in high volumes all over especially western countries. USA is considered to exploit the gasoline at maximum level. Gasoline is usually added with other substances to reduce its knocking so to improve its quality. Gasoline dynamic and efficiency all over it is very dangerous to human health, furthermore few fire accidents had been the result of gasoline because it quickly mixes and diffuses in air and is highly inflammable.
Diesel is also used as a cheap liquid fuel for diesel engines in cars. Cars powered by diesel are very economical to maintain as compared to gasoline. It is due to the reason that diesel fuel generates more energy in per liter with improved efficiency. The main disadvantage of diesel over gasoline is that it produces N O x emissions which are harmful for the environment. Although it produces less green house gases as compared to gasoline.
An alternative to gasoline and diesel is C N G (Compressed Natural Gas). It is a very environmental friendly fuel as compared to the above discussed fuels. C N G can be consumed by the same gasoline engine all that is required is a C N G cylinder that is embedded in the car easily. Modern diesel engines can also be modified with the C N G. In addition to the positive effect on atmosphere C N G is also very economical against the two fuels. Cars are being modified to C N G in Asian region more rapidly than the Western regions.
Other fuels that can be potentially used in the cars are not yet been adopted vitally, there are many reasons and constraints using those fuels as discussed. More research should be initiated to make cars more fuel efficient and the chief concern should be how to produce such fuels that are both cost effective and good for environment.
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