The percentage composition by mass of a certain fuel is given as C 90%, H 3.5%,...

The percentage composition by mass of a certain fuel is given as C 90%, H 3.5%, O 3% and remainder is incombustible. The fuel is burnt in air and the resulting dry analysis gave the following result by volume: CO2 12.7%, O2 7%, N2 remainder.

a. Find the mass of air supplied per kilogram of fuel

b. If the fuel is completely burned with air (there is no unburned fuel in the exhaust gas), what is the expression that describes this situation?

c. Determine the percentage excess air.

Expert Solution

queen_honey_blossom answered 10 months ago

The percentage composition by mass of a certian feul is given as C 90%, H 3.5%,...

The percentage composition by mass of a certian feul is given as C 90%, H 3.5%, O 3% and remainder is incombustible. The fuel is burnt in air and the resulting dry analysis gave the following result by volume: CO2 12.7@, O2 7%, N2 remainder. a) find the mass of air supplied per kilogram of fuel. b) Determine the percentage excess air.

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