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What is necessary for complete combustion of fuels?

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in Energy Engineering by (91.0k points)
What is necessary for complete combustion of fuels?

(a) There should be no water content in the fuel

(b) Sufficient amount of air is required

(c) High quantity of fuel

(d) Open space to burn easily

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Question is taken from Combustion of Fuels in chapter Steam Power Plant of Energy Engineering

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Correct choice is (b) Sufficient amount of air is required

Easy explanation: For complete combustion of fuels, it is necessary to supply sufficient amount of air. If air supplied is not sufficient then combustion will be incomplete. This means carbon in the fuel burns to produce carbon monoxide (CO) instead of carbon dioxide (CO2), and thus reducing the amount of oxygen required and amount of heat generated.

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