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Franco is being drawn to design an evaporator that would remove water in an aqueous sodium hydroxide. He proposes a triple effect evaporator with a forward feed flow mechanism. He wants to achieve a 50% wt per wt of sodium hydroxide from a 5% wt per wt of original solution. The temperature of the feed solution was found to be 15.56 °C. The steam is available based on the instruction above with an ejector capable of maintaining a pressure of 1 psia is planned to be used. One particular assumption he set is the three evaporators has the same heating area and big enough to produce a 2.52kg /s of thick liquor. His problem are the following, the heating area, amount of steam consumed and the steam economy. The overall coefficients are the following based in the order 800, 500 and 300 Btu/hr-ft2 -F. Used an steam pressure equal to 9.18621 atm.

Franco is being drawn to design an evaporator that would remove water in an aqueous sodium hydroxide. He proposes a triple effect evaporator with a forward feed flow mechanism. He wants to achieve a 50% wt per wt of sodium hydroxide from a 5% wt per wt of original solution. The temperature of the feed solution was found to be 15.56 °C. The steam is available based on the instruction above with an ejector capable of maintaining a pressure of 1 psia is planned to be used. One particular assumption he set is the three evaporators has the same heating area and big enough to produce a 2.52kg /s of thick liquor. His problem are the following, the heating area, amount of steam consumed and the steam economy. The overall coefficients are the following based in the order 800, 500 and 300 Btu/hr-ft2 -F. Used an steam pressure equal to 9.18621 atm.

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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Franco is being drawn to design an evaporator that would remove water in an aqueous sodium hydroxide. He proposes a triple effect evaporator with a forward feed flow mechanism. He wants to achieve a 50% wt per wt of sodium hydroxide from a 5% wt per wt of original solution. The temperature of the feed solution was found to be 15.56 •C. The steam is available based on the instruction above with an ejector capable of maintaining a pressure of 1 psia is planned to be used. One particular assumption he set is the three evaporators has the same heating area and big enough to produce a 2.52kg /s of thick liquor. His problem are the following, the heating area, amount of steam consumed and the steam economy. The overall coefficients are the following based in the order 800, 500 and 300 Btu/hr-ft? •F. Used an steam pressure equal to 9.18621 atm.
Transcribed Image Text:Franco is being drawn to design an evaporator that would remove water in an aqueous sodium hydroxide. He proposes a triple effect evaporator with a forward feed flow mechanism. He wants to achieve a 50% wt per wt of sodium hydroxide from a 5% wt per wt of original solution. The temperature of the feed solution was found to be 15.56 •C. The steam is available based on the instruction above with an ejector capable of maintaining a pressure of 1 psia is planned to be used. One particular assumption he set is the three evaporators has the same heating area and big enough to produce a 2.52kg /s of thick liquor. His problem are the following, the heating area, amount of steam consumed and the steam economy. The overall coefficients are the following based in the order 800, 500 and 300 Btu/hr-ft? •F. Used an steam pressure equal to 9.18621 atm.
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