A steam generator delivers steam at 140 bar and \(500^{\circ} \mathrm{C}\). The feed water inlet temperature \(=170^{\circ} \mathrm{C}\). The steam generation rate is \(110,000 \mathrm{~kg} / \mathrm{h}\), and thermal efficiency of steam generator is \(90 \%\).

Calculate

(a) the rate of fuel burnt if the calorific value of fuel is \(22 \mathrm{MJ} / \mathrm{kg}\), and

(b) the percentages of total heat absorbed in economiser, evaporator and superheater.

Assume that only latent heat is absorbed in the evaporator.