Essay on Renewable and Clean Energy

Essay on Renewable and Clean Energy

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As these days global warming, pollutions and fuel shortages are getting more and more serious through time, renewable and clean energy is increasingly the ideal solution to energy related problems we have to solve one way or another. Biofuel is currently one of the mainstream and highly supported solutions, an idea to make renewable fuel by living organisms such as fiber, corn, vegetable oil or sugarcane. Biofuels, unlike nonrenewable fossil fuels over extracted by people, contains the potential to tackle most of the problems people encounter when using fossil fuels. This makes renewable fuels making it a cleaner source of energy, and a better option than fossil fuels that will ran out shortly sooner or later.

The two main categories in fuels are gasoline (ethanol), a flammable and explosive liquid used mostly to power automobiles, and diesel, a relatively settled fuel used in diesel engines. This also applies to the world of biofuels. While diesel made from renewable resources is called biodiesel, gasoline made from living organisms is mainly ethanol fuel (Gupta, p60). Ethanol fuel is one of the most widely used biofuels in the world, as its market share in the United States grew to 10 percent in the 2010s while Brazil exports over 3 billion liters of ethanol a year (Gupta, p73). However, ethanol at the current stage only serves as a fuel additive/ fuel extender of fossil gasoline.

Corn ethanol refers to the renewable energy made by corn, which is using corn as the feedstock for ethanol production (Seifried, p45). The feature of corn to produce ethanol is because of its large quantity of sugars, particularly starch, exist in corn. Starch might be slightly effectively organized to separate itself into basic sugars, which can ...

... middle of paper ...

...d restrictions corn ethanol in practical usage. The last part compares corn ethanol with three different energy sources that also had the potential to compete for ‘the future fuel’. Solar power, algae biofuel and hydrogen power are all alternatives to fossil fuel, which they are all introduced and compared to corn ethanol, giving advantages, disadvantages and limits to the audience.

To conclude all the questions, investigations and answers discussed throughout this essay, there is only one thing for sure: fossil fuel will certainly be the major source of energy in the future, as ‘future fuel’ candidates are generally still not ready to replace the largest type of fuel used currently in the world. Unless a breakthrough happens in the future, fossil fuel will continue to be the major source of energy used in the world, towards the day when it completely runs out.

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