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a. The Area of evaporator tube? (Ans: 0.342m²) b. Heat required per kg of feed for evaporation? (Ans: 1.34x106 J) c. Rate of evaporation? (Ans: 360 kg/hr)

a. The Area of evaporator tube? (Ans: 0.342m²) b. Heat required per kg of feed for evaporation? (Ans: 1.34x106 J) c. Rate of evaporation? (Ans: 360 kg/hr)

Introduction to Chemical Engineering Thermodynamics
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
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Tomato juice is to be concentrated from 12% solids to 28% solids in a climbing film evaporator, 3 m high and 4 cm diameter. The maximum allowable temperature for tomato juice is 57°C. The juice is fed to the evaporator at 57°C and at this temperature the latent heat of vaporization is 2366 kJ kg-1. Steam is used in the jacket of the evaporator at a pressure of 170 kPa (abs). If the overall heat-transfer coefficient is 6000 J m-2 s-1 °C-1, estimate the quantity of tomato juice feed per hour. Take heating surface as 3 m long x 0.04 m diameter. a. The Area of evaporator tube? (Ans: 0.342m²) b. Heat required per kg of feed for evaporation? (Ans: 1.34x106 J) c. Rate of evaporation? (Ans: 360 kg/hr)
Transcribed Image Text:Tomato juice is to be concentrated from 12% solids to 28% solids in a climbing film evaporator, 3 m high and 4 cm diameter. The maximum allowable temperature for tomato juice is 57°C. The juice is fed to the evaporator at 57°C and at this temperature the latent heat of vaporization is 2366 kJ kg-1. Steam is used in the jacket of the evaporator at a pressure of 170 kPa (abs). If the overall heat-transfer coefficient is 6000 J m-2 s-1 °C-1, estimate the quantity of tomato juice feed per hour. Take heating surface as 3 m long x 0.04 m diameter. a. The Area of evaporator tube? (Ans: 0.342m²) b. Heat required per kg of feed for evaporation? (Ans: 1.34x106 J) c. Rate of evaporation? (Ans: 360 kg/hr)
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