Why is bio gas considered an excellent fuel ?
class 10th case
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It is an excellent fuel because: It doesn't lead to air pollution since combustion of biogas is smoke free. It is a clean fuel, since it doesn't leave any residues. It produces a large amount of heat per unit mass and therefore, has high calorific value.
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Biogas is a well-established fuel for cooking and lighting in a number of countries. This is known as an excellent fuel because it is a mixture of about 50-70% methane and 25-45% C02 and traces of other gases. The gas is created from anaerobically decaying organic mater, such as manure and plant material.
Biogas is considered an ideal fuel because of the following reasons: (i) Biogas does not cause air pollution as the combustion process is smoke free. (ii) Biogas produces a large amount of heat per unit mass and thus has high calorific value. (iii) Biogas does not leave any residue on burning and is thus a clean fuel.
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