save fuel writing 300 word
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Answer:
Fuels are of various types and are used for different purposes. While some of these are used in the process of production, others are used for the purpose transportation. Man relies on fuels for almost all his tasks. Just as every other thing on earth, fuels offer both advantages and disadvantages.
Main Types of Fuels
Fuels have mainly been divided into three different categories. Here is a brief look at these categories:
Solid Fuels
These refer to the solid substances that generate heat and light energy by the process of combustion. There are various solid fuels that are put to different uses. These include firewood, pellets, charcoal, peat, coal, biomass, municipal waste and coke. Most of the solid fuels are more readily available as compared to liquid and gaseous fuels. These are thus cheaper than the other two forms.
On the downside, solid fuels are heavier and thus difficult to transport. They require a good amount of air for proper combustion. The thermal energy of solid fuels is low.
Liquid Fuels
These are combustible molecules that are brought together to generate mechanical energy. Some of the examples of liquid fuels include gasoline, diesel, liquefied petroleum gas and compressed natural gases. Since liquid takes the form of any object it is filled in, liquid fuels are comparatively easier to transport. There is no dust or ash formation on burning these fuels. These are used as internal combustion fuels.
On the downside, liquid fuels are quite expensive. Most of these are highly inflammable and thus the risk involved in storing the same is quite high. They are also known for bad odours.
Gaseous Fuels
These are the fuels available in the gaseous forms. While some of these fuels are freely available in nature such as the natural gases other are derived from different substances. Gaseous fuels generated from solid fuels such as coal and biomass are termed as coal gas and biomass gas. Gases generated from liquid fuel such as petroleum include refinery gases and liquefied petroleum gas.
Gaseous fuels can easily be transferred through pipelines. Unlike liquid and solid fuels, the gaseous fuels do not produce any smoke. These are comparatively cleaner when it comes to handling. They can be burned even with slight air supply.
On the downside these are highly inflammable and hence storing these involves risk. These are quite expensive and also require huge tanks for storage.
Conclusion
While some of the fuels are renewable others are non-renewable yet others take hundreds of years to renew. Thus, we must use these resources carefully. We must avoid wastage of any kind.
Answer
Fuel shortages keep occurring in the world from time to time. Most countries have to import fuel to meet their needs. The countries which export fuel are the OPEC nations (those in the Middle East) Venezuela, Russia, etc. Apart from shortages, the price of fuels also fluctuates wildly depending on availability. In India and the US, fuel is sold at subsidized rates. They are heavily dependent on OPEC nations for supply. OPEC nations reduce fuel production to shore up their profits whenever supply exceeds demand and prices fall.
On such occasions, oil dependent countries are badly affected. In 2008, a similar scenario arose and prices shot up so much that it created a panic. Long queues were seen outside petrol bunks and there were fewer vehicles on the roads because there was no fuel to tank up on. In a way it was a good thing because there was less pollution and traffic jams.
But the real danger in consuming fuel thoughtlessly is that it dries up the earth’s resources. Fossil fuels like coal and oil and gas are non-renewable resources. In other words, increasing usage depletes their presence within the earth. So there will come a time when they will no longer be available. The answer is to develop alternative and renewable sources..
This is why many countries have turned to ethanol, a kind of fuel which is made from corn kernels. Another option is to use hybrid cars which run both on gas and electricity. Big gas-guzzling vehicles like Hummers and SUVs should be exchanged for smaller, fuel-efficient cars. Electric cars like the Indian Reva are also good options.
Fuels like petrol and diesel are also not clean fuels. They cause pollution and increase C02 emissions. This leads to global warming which is one of the biggest challenges the earth is facing. Saving fuel for the future is therefore an urgent necessity.