1) A fruit juice (density 1050 kg/m3, Cp = 4 kJ/kg/C) is heated from 25C to...

 

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1) A fruit juice (density 1050 kg/m3, Cp = 4 kJ/kg/C) is heated from 25C to 65C in a heat exchanger. The heating fluid is 400 kg/h of saturated vapour at 100C that exits from the heat exchanger as condensate at 80C. Calculate flow rate of fruit juice. 2) 12 kg saturated vapour at 180 kPa condensates inside the jacket of a boiler, releasing only its latent heat. a) Which is the vapour temperature? b) How much energy is produced by the process? c) This energy is used to heat 110 kg of a food (Cp 3.6 kJ/kgC). Calculate the temperature increase that the food undergoes and that the food would undergo if the condensate (from the vapour) left at 95C? 1) A fruit juice (density 1050 kg/m3, Cp = 4 kJ/kg/C) is heated from 25C to 65C in a heat exchanger. The heating fluid is 400 kg/h of saturated vapour at 100C that exits from the heat exchanger as condensate at 80C. Calculate flow rate of fruit juice. 2) 12 kg saturated vapour at 180 kPa condensates inside the jacket of a boiler, releasing only its latent heat. a) Which is the vapour temperature? b) How much energy is produced by the process? c) This energy is used to heat 110 kg of a food (Cp 3.6 kJ/kgC). Calculate the temperature increase that the food undergoes and that the food would undergo if the condensate (from the vapour) left at 95C?