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at 311 K of a 20 wt % solution or heating is at 399.3 K. The press kPa abs. The overall coefficient is for of th

at 311 K of a 20 wt % solution or heating is at 399.3 K. The press kPa abs. The overall coefficient is for of th

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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8.4-9. Throughput of a Single-Effect Evaporator. An evaporator is concentrating F kg/h at 311 K of a 20 wt % solution of NaOH to 50%. The saturated steam used for heating is at 399.3 K. The pressure in the vapor space of the evaporator is 13.3 kPa abs. The overall coefficient is 1420 W/m² K and the area is 86.4m?. Calculate the feed rate F of the evaporator. Ans. F = 9072 kg/h
Transcribed Image Text:8.4-9. Throughput of a Single-Effect Evaporator. An evaporator is concentrating F kg/h at 311 K of a 20 wt % solution of NaOH to 50%. The saturated steam used for heating is at 399.3 K. The pressure in the vapor space of the evaporator is 13.3 kPa abs. The overall coefficient is 1420 W/m² K and the area is 86.4m?. Calculate the feed rate F of the evaporator. Ans. F = 9072 kg/h
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