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4- Figure shows prechilled seawater is sprayed into a vacuum at a low pressure. The cooling required to freeze some of the feed seawater comes from evaporation of a fraction of the water entering the chamber. The concentration of the brine stream, B, is 4.8% salt. The pure salt-free water vapor is compressed and fed to a melter at a higher pressure, where the heat of condensation of the vapor is removed through the heat of fusion of the ice, which contains no salt. As a result, pure cold water and concentrated brine (6.9 %) leave the process as products. a.Determine the flow rates of streams W and D if the feed is 1000 kg/hr. b. Determine the flow rates of streams C, B, andA per hour. a schematic for making freshwater from seawater by freezing. The PURE WATER COMPRESSOR VAPOR, A PURE FRESH CHILLED WATER, W MELTER CHILLED SEA WATER, FLASH FREEZER 3.45 % NaCi PURE ICE, C ICE+BRINE, B CHILLED BRINE, D 6.9 % Naci FILTER 4.8 % NaCl

4- Figure shows prechilled seawater is sprayed into a vacuum at a low pressure. The cooling required to freeze some of the feed seawater comes from evaporation of a fraction of the water entering the chamber. The concentration of the brine stream, B, is 4.8% salt. The pure salt-free water vapor is compressed and fed to a melter at a higher pressure, where the heat of condensation of the vapor is removed through the heat of fusion of the ice, which contains no salt. As a result, pure cold water and concentrated brine (6.9 %) leave the process as products. a.Determine the flow rates of streams W and D if the feed is 1000 kg/hr. b. Determine the flow rates of streams C, B, andA per hour. a schematic for making freshwater from seawater by freezing. The PURE WATER COMPRESSOR VAPOR, A PURE FRESH CHILLED WATER, W MELTER CHILLED SEA WATER, FLASH FREEZER 3.45 % NaCi PURE ICE, C ICE+BRINE, B CHILLED BRINE, D 6.9 % Naci FILTER 4.8 % NaCl

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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a. Determine the flow rates of streams D and W if the feed is 1000kg/h

b. Determine the flow of streams C, B, A per hour.

 

4- Figure shows a prechilled seawater is sprayed into a vacuum at a low pressure. The cooling required to freeze some of the feed seawater comes from evaporation of a fraction of the water entering the chamber. The concentration of the brine stream, B, is 4.8% salt. The pure salt-free water vapor is compressed and fed to a melter at a higher pressure, where the heat of condensation of the vapor is removed through the heat of fusion of the ice, which contains no salt. As a result, pure cold water and concentrated brine (6.9%) leave the process as schematic for making freshwater from seawater by freezing. The products. a.Determine the flow rates of streams W and D if the feed is 1000 kg/hr. b. Determine the flow rates of streams C, B, andA per hour. PURE WATER COMPRESSOR VAPOR, A PURE FRESH CHILLED WATER, W MELTER CHILLED SEA WATER FLASH FREEZER 3.45 % Naci PURE ICE, C CHILLED BRINE, D ICE+BRINE, B 4.8 % Naci FILTER 6.9 % Naci
Transcribed Image Text:4- Figure shows a prechilled seawater is sprayed into a vacuum at a low pressure. The cooling required to freeze some of the feed seawater comes from evaporation of a fraction of the water entering the chamber. The concentration of the brine stream, B, is 4.8% salt. The pure salt-free water vapor is compressed and fed to a melter at a higher pressure, where the heat of condensation of the vapor is removed through the heat of fusion of the ice, which contains no salt. As a result, pure cold water and concentrated brine (6.9%) leave the process as schematic for making freshwater from seawater by freezing. The products. a.Determine the flow rates of streams W and D if the feed is 1000 kg/hr. b. Determine the flow rates of streams C, B, andA per hour. PURE WATER COMPRESSOR VAPOR, A PURE FRESH CHILLED WATER, W MELTER CHILLED SEA WATER FLASH FREEZER 3.45 % Naci PURE ICE, C CHILLED BRINE, D ICE+BRINE, B 4.8 % Naci FILTER 6.9 % Naci
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