A solution of organic colloids is to be concentrated from 15% to 50% solids in a vertical tube evaporator. The solution has a negligible elevation in boiling point and the specific heat of the feed is 0.93. Saturated steam is available at 0.8 atm abs and the pressure in the condenser is 100 mmHg abs. The feed enters at 15°C. The overall heat transfer coefficient is 1700 W/m?.°C. The evaporator must evaporate 25000 kg of water per hour. How many square meters of surface are required and what is the steam consumption in kg/hr?
A solution of organic colloids is to be concentrated from 15% to 50% solids in a vertical tube evaporator. The solution has a negligible elevation in boiling point and the specific heat of the feed is 0.93. Saturated steam is available at 0.8 atm abs and the pressure in the condenser is 100 mmHg abs. The feed enters at 15°C. The overall heat transfer coefficient is 1700 W/m?.°C. The evaporator must evaporate 25000 kg of water per hour. How many square meters of surface are required and what is the steam consumption in kg/hr?
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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Transcribed Image Text:A solution of organic colloids is to be concentrated from
15% to 50% solids in a vertical tube evaporator. The solution
has a negligible elevation in boiling point and the specific
heat of the feed is 0.93. Saturated steam is available at 0.8
atm abs and the pressure in the condenser is 100 mmHg abs.
The feed enters at 15°C. The overall heat transfer coefficient
is 1700 W/m².°C. The evaporator must evaporate 25000 kg
of water per hour. How many square meters of surface are
required and what is the steam consumption in kg/hr?
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