1. Coal (C135H96O9NS) is combusted in a furnace at atmospheric pressure. Calculate:
I. Stoichiometric A/F ratio using the A/F s law.
II. Write the fuel stoichiometric reaction mole and mass.
III. Write the full reaction for actual combustion with 20% excess air. IV. Greenhouse emissions.
V. Water vapor mass and dewpoint.
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v> An unknown fuel (CnHmSp) is combusted in a furnace. Dry exhaust volumetric analysis show CO2%= 16%; CO% = 1%; SO2% = 0.5%; O2% = 3% and the balance in N2. Calculate: I. The chemical formula for the fuel. II. Greenhouse emissions. III. Actual A/F ratio. IV. Excess air %.
Note: Do not use any HHV values listed in a table. Calculate
your own value but feel free to use a listed value as a sanity
check!
Please show all work and use the tables provided
2) (14 pts) Write the balanced reaction equation for the stoichiometric, complete combustion of propane, C3H8, in air. Determine (a) the mass and mole fractions of fuel, oxygen, and nitrogen in the reactants, (b) the mass and mole fractions of carbon dioxide, water vapor,...
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a) Explain the reason why heat is released when a hydrocarbon fuel is burned in a combustion chamber.b) Why excess air is necessary to use in an actual combustion? Explain.c) \(n\) - Dodecane \(\left(C_{12} H_{26}\right)\) in gas form is burned in a combustion chamber with \(150 \%\) excess air.Determine the following:i) the chemical reaction equation showing all reactants and products.ii) the required air to fuel ratio by mass, \(A F_{m}\left(\frac{k g \text { air }}{k g \text { fuel }}\right)\),iii)...
a) A Coal from Indonesia which has an ultimate analysis (by mass) as 67.40 % C. 5.31 % H2, 15.11 % O2, 1.44 % N2, 2.36 % S. and 8.38 % ash (non-combustibles) The coal is burned with 30% excess air. Determine: i) The mole fractions of each component of the coal [10 Marks] ii) The combustion equation [14 Marks] iii) The mass of air required per unit mass of coal burned [7 Marks] iv) The total mole number of...
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i Propane (C3H8) is combusted in a furnace. Dry exhaust volumetric analysis show CO2%= 16%; CO% = 1%; SO2% = 0.5%; O2% = 3% and the balance in N2. Calculate: I. Actual and stoichiometric A/F ratios. II. Equivalence ratio (Φ)