Fresh orange juice contains 12.0 wt% solids. Initially a single evaporation process was used for the concentration to 45%, but volatile constituents of the juice escaped with the water, leaving the concentration with a flat taste. The present process overcomes this problem by passing the evaporator with a fraction of the fresh juice; the juice that enters the evaporator is concentrated to 58% solids, the product is mixed with the bypassed fresh juice to achieve the desired final concentration of solids. Calculate the fraction of the feed that by passed the evaporator.

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
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Fresh orange juice contains 12.0 wt% solids. Initially a single evaporation process was used for the concentration to 45%, but volatile constituents of the juice escaped with the water, leaving the concentration with a flat taste. The present process overcomes this problem by passing the evaporator with a fraction of the fresh juice; the juice that enters the evaporator is concentrated to 58% solids, the product is mixed with the bypassed fresh juice to achieve the desired final concentration of solids. Calculate the fraction of the feed that by passed the evaporator.

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