(a) A closed feedwater heater with U = 1986 W/m2•C uses condensing steam at T = 109•C for heating 38,548 kg/h of water (C, = 4186 J/kg °C) from 15.55°C to 101.6°C. What is the heating surface area in m? (b) After some fouling of the tubes, the exit temperature of feedwater becomes 97.7 C, find U

Elements Of Electromagnetics
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2. (a) A closed feedwater heater with U = 1986 W/m2•C uses condensing steam at Tw = 109°C for heating 38,548
kg/h of water (C, = 4186 J/kg °C) from 15.55°C to 101.6°C. What is the heating surface area in m??
(b) After some fouling of the tubes, the exit temperature of feedwater becomes 97.7°C, find U
Transcribed Image Text:2. (a) A closed feedwater heater with U = 1986 W/m2•C uses condensing steam at Tw = 109°C for heating 38,548 kg/h of water (C, = 4186 J/kg °C) from 15.55°C to 101.6°C. What is the heating surface area in m?? (b) After some fouling of the tubes, the exit temperature of feedwater becomes 97.7°C, find U
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