Steam is generated at 12 bar and (250^{circ} mathrm{C}). The feed water temperature is (30^{circ} mathrm{C}). The

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Steam is generated at 12 bar and \(250^{\circ} \mathrm{C}\). The feed water temperature is \(30^{\circ} \mathrm{C}\). The calorific value of coal is \(34 \mathrm{MJ} / \mathrm{kg}\). Steam generated per \(\mathrm{kg}\) of coal burnt is \(10 \mathrm{~kg}\). Find

(a) equivalent evaporation, and

(b) boiler power if \(250 \mathrm{~kg} / \mathrm{h}\) of coal is burnt.

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