One thousand liters of a 95 wt% glycerol-5% water solution is to be diluted to 60% glycerol by adding a 35% solution pumped from a large storage tank through a 5-cm ID pipe at a steady rate. The pipe discharges at a point 23m higher than the liquid surface in the storage tank. The operation is carried out isothermally and takes 13 min to complete. The friction loss is 50 J/kg. Calculate the final solution volume and the shaft work in kW that the pump must deliver, assuming that the surface of the stored solution and the pipe outlet are both at 1 atm. PH20 = 1.00 kg/L, Pgly = 1.26 kg/L. Use to estimate solution densities.
One thousand liters of a 95 wt% glycerol-5% water solution is to be diluted to 60% glycerol by adding a 35% solution pumped from a large storage tank through a 5-cm ID pipe at a steady rate. The pipe discharges at a point 23m higher than the liquid surface in the storage tank. The operation is carried out isothermally and takes 13 min to complete. The friction loss is 50 J/kg. Calculate the final solution volume and the shaft work in kW that the pump must deliver, assuming that the surface of the stored solution and the pipe outlet are both at 1 atm. PH20 = 1.00 kg/L, Pgly = 1.26 kg/L. Use to estimate solution densities.
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:One thousand liters of a 95 wt% glycerol-5% water solution is to be diluted to 60% glycerol by
adding a 35% solution pumped from a large storage tank through a 5-cm ID pipe at a steady rate.
The pipe discharges at a point 23m higher than the liquid surface in the storage tank. The operation
is carried out isothermally and takes 13 min to complete. The friction loss is 50 J/kg. Calculate the
final solution volume and the shaft work in kW that the pump must deliver, assuming that the
surface of the stored solution and the pipe outlet are both at 1 atm. PH20 = 1.00 kg/L, Pgly = 1.26
kg/L. Use to estimate solution densities.
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