Tomato pulp (40% solids content) is heated by flowing it into a steam injection heater at a rate of 500 kg / hour. 85% quality steam under 180 kPa is supplied to the heater at a rate of 40 kg / hour. If it is assumed that the heat exchanger efficiency is 85% and the initial slurry specific heat is 3.2 kJ / (kg K), the slurry specific heat during the heating process corresponds to the function Cp = Cpw (water fraction) + Cps (solids fraction). a. Determine the temperature of the product leaving the heater when the initial temperature is 35 ° C. =....° C. b. Determine the total solids fraction of the product after heating. = ...%

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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Tomato pulp (40% solids content) is heated by flowing it into a steam injection heater at a rate of 500 kg / hour. 85% quality steam under 180 kPa is supplied to the heater at a rate of 40 kg / hour. If it is assumed that the heat exchanger efficiency is 85% and the initial slurry specific heat is 3.2 kJ / (kg K), the slurry specific heat during the heating process corresponds to the function Cp = Cpw (water fraction) + Cps (solids fraction). a. Determine the temperature of the product leaving the heater when the initial temperature is 35 ° C. =....° C. b. Determine the total solids fraction of the product after heating. = ...%
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