calculate the feed rate (lb / hr), the speed of the heating steam (lb / hr) and the system economy

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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A fruit juice sample that enters the single effect evaporator at 110F temperature and contains 15% dry matter is concentrated to a concentration of 45%. The pressure of the heating vapor is 103 psia, the pressure of the water vapor leaving the product is 3.72 psia, the total heat transfer coefficient is 400 Btu / (h.ft2.F) and the total surface area is 500 ft2. Assuming that the juice sample behaves like a NaOH solution (temperature changes are not negligible) calculate the feed rate (lb / hr), the speed of the heating steam (lb / hr) and the system economy.

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