b) Air Requirement and Gas analysis [30 Marks] The ultimate coal sample analysis is given below, For the given fuel, answer the following C=61%; H₂=3%; S=0.5%; Ash = 14.5%; N2=1.5%; O₂=19.5% (i) Calculate Theoretical oxygen requirement per kg of coal (10 Marks) (!!) (iii) Calculate Theoretical dry air requirement per kg of coal (5 Marks) Find Orsat Analysis of flue gas when coal burned with 90% excess dry air (15 Marks)

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