Q11:- Two streams of water are mixed to form the feed to a boiler. Process data are as follows: Feed stream 1 120 kg/min 30 C° Feed stream 2 175 kg/min 65 C° Boiler pressure 17 bar (absolute) Calculate the required heat input to the boiler in kilojoules per minute if the emerging steam is saturated at the boiler pressure. Neglect the kinetic energies of the liquid inlet streams. 120 kg HC min 30°c. fî = 125.7 KJ/kg BOILER 295 kg H2C(v¥min 17 bar, saturated (204°C) A 175 kg H20 fmin 65°C, i - 271.9 kJ/kg = 2793 k/kg 6 cm ID pipe Heat dlimini Soecific volume - 0.1166 m /kg

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