A forced-circulation triple-effect evaporator using forward feed is to be used to concentrate a 10 wt % NaOH solution entering at 37.8°C to 50%. The steam used enters at 58.6 kPa gage. The absolute pressure in the vapor space of the third effect is 6.76 kPa The feed rate is 13 608 kg/h. The heat-transfer coefficients are U 6246, U2 3407, and U 2271 W/m K. All effects have the same area. Calculate the surface area and steam consumption. Assume: No BPR at 1st and 2nd effect
A forced-circulation triple-effect evaporator using forward feed is to be used to concentrate a 10 wt % NaOH solution entering at 37.8°C to 50%. The steam used enters at 58.6 kPa gage. The absolute pressure in the vapor space of the third effect is 6.76 kPa The feed rate is 13 608 kg/h. The heat-transfer coefficients are U 6246, U2 3407, and U 2271 W/m K. All effects have the same area. Calculate the surface area and steam consumption. Assume: No BPR at 1st and 2nd effect
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 forced-circulation triple-effect evaporator using forward feed is to be used to concentrate a 10 wt % NaOH solution entering at 37.8°C to 50%. The steam used enters at 58.6 kPa gage. The absolute pressure in the vapor space of the third effect is 6.76 kPa The feed rate is 13 608 kg/h. The heat-transfer coefficients are U 6246, U2 3407, and U 2271 W/m K. All effects have the same area. Calculate the surface area and steam consumption.
Assume: No BPR at 1st and 2nd effect
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