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Fresh orange juice with 12% soluble solids content is concentrated to 60% in a multiple effect evaporator (Control surface I). To improve the quality of the final product, concentrated juice (X) is mixed (Control surface I) with an amount of fresh juice so that the concentration of the mixture is 42% (Control surface II). Considering the overall mass balance and the component mass balance calculate: a) How much water must be evaporated per hour (W)? b) How much fresh juice must be added back per hour (F)? c) How much final product (Y) will be produced per hour, if the inlet feed flow rate is 10,000 kg/h fresh juice? Assume the steady state. The process diagram is show below

Fresh orange juice with 12% soluble solids content is concentrated to 60% in a multiple effect evaporator (Control surface I). To improve the quality of the final product, concentrated juice (X) is mixed (Control surface I) with an amount of fresh juice so that the concentration of the mixture is 42% (Control surface II). Considering the overall mass balance and the component mass balance calculate: a) How much water must be evaporated per hour (W)? b) How much fresh juice must be added back per hour (F)? c) How much final product (Y) will be produced per hour, if the inlet feed flow rate is 10,000 kg/h fresh juice? Assume the steady state. The process diagram is show below

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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Fresh orange juice with 12% soluble solids content is concentrated to 60% in a multiple effect evaporator (Control surface I). To improve the quality of the final product, concentrated juice (X) is mixed (Control surface I) with an amount of fresh juice so that the concentration of the mixture is 42% (Control surface II).

Considering the overall mass balance and the component mass balance calculate:

a) How much water must be evaporated per hour (W)?

b) How much fresh juice must be added back per hour (F)?

c) How much final product (Y) will be produced per hour, if the inlet feed flow rate is 10,000 kg/h fresh juice?

Assume the steady state. The process diagram is show below.

Assume the steady state. The process diagram is show below. 10000 kg/h 12% W I EVAPORATION X 60% MIXING 12% F II Y 42%
Transcribed Image Text:Assume the steady state. The process diagram is show below. 10000 kg/h 12% W I EVAPORATION X 60% MIXING 12% F II Y 42%
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