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(b) A continuous single effect evaporator is to be fed with 5000 kg/hr. of solution having I wt% solute. The feed is at a temperature of 303K. It is to be concentrated to a solution of 2 wt% solute. The evaporation operating at a pressure of 101.3 kPa in the vapor space. Saturated steam is supplied at 143.3 kPa for heating. Calculate the weight of the vapor produced, and the weight of the steam required. Also calculate the necessary heating surface. [Note: The solution is so dilute that its specific heat, latent heat and boiling point may be assumed to be the same as those of water] h= 125.79 kJ/kg, h= 419.04 kJ/kg. H,=2676.1 kJ/kg, H,= 2691.5 kJ/kg, h,= 461.30 kJ/kg

(b) A continuous single effect evaporator is to be fed with 5000 kg/hr. of solution having I wt% solute. The feed is at a temperature of 303K. It is to be concentrated to a solution of 2 wt% solute. The evaporation operating at a pressure of 101.3 kPa in the vapor space. Saturated steam is supplied at 143.3 kPa for heating. Calculate the weight of the vapor produced, and the weight of the steam required. Also calculate the necessary heating surface. [Note: The solution is so dilute that its specific heat, latent heat and boiling point may be assumed to be the same as those of water] h= 125.79 kJ/kg, h= 419.04 kJ/kg. H,=2676.1 kJ/kg, H,= 2691.5 kJ/kg, h,= 461.30 kJ/kg

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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(b) A continuous single effect evaporator is to be fed with 5000 kg/hr. of solution having 1 wt% solute. The feed is at a temperature of 303K. It is to be concentrated to a solution of 2 wt% solute. The evaporation operating at a pressure of 101.3 kPa in the vapor space. Saturated steam is supplied at 143.3 kPa for heating. Calculate the weight of the vapor produced, and the weight of the steam required. Also calculate the necessary heating surface. [Note: The solution is so dilute that its specific heat, latent heat and boiling point may be assumed to be the same as those of water] h= 125.79 kJ/kg, h̟= 419.04 kJ/kg, H,=2676.1 kJ/kg, H,= 2691.5 kJ/kg, h,= 461.30 kJ/kg
Transcribed Image Text:(b) A continuous single effect evaporator is to be fed with 5000 kg/hr. of solution having 1 wt% solute. The feed is at a temperature of 303K. It is to be concentrated to a solution of 2 wt% solute. The evaporation operating at a pressure of 101.3 kPa in the vapor space. Saturated steam is supplied at 143.3 kPa for heating. Calculate the weight of the vapor produced, and the weight of the steam required. Also calculate the necessary heating surface. [Note: The solution is so dilute that its specific heat, latent heat and boiling point may be assumed to be the same as those of water] h= 125.79 kJ/kg, h̟= 419.04 kJ/kg, H,=2676.1 kJ/kg, H,= 2691.5 kJ/kg, h,= 461.30 kJ/kg
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