Question 2. [5 marks]

A coal-burning steam power plant produces a net

power of 300 MW with an overall thermal efficiency

of 32 percent. The actual gravimetric air-fuel ratio in

the furnace is calculated to be 12 kg air/kg fuel. The

heating value of the coal is 28,000 kJ/kg. Determine

(a) the amount of coal consumed during a 24-hour

period and (b) the rate of air flowing through the

furnace