Water is stored in an elevated reservoir. To generate power, water flows from this reservoir down through a large conduit to a turbine and then through a similar-sized conduit. At a point in the conduit 89.5 m above the turbine, the pressure is 172.4 kPa and at a level 5 m below the turbine, the pressure is 89.6 kPa. The water flow rate is 0.800ms. The output of the shaft the turbine is 658 kW. The water density is 1000 kg m. If the efficiency of the turbine in converting the mechanical energy given up by the fluid to the turbine shaft is 89 % (n = 0.89). a) Draw a schematic diagram for the process b) Calculate the frictional loss in the turbine in J kg %3D
Water is stored in an elevated reservoir. To generate power, water flows from this reservoir down through a large conduit to a turbine and then through a similar-sized conduit. At a point in the conduit 89.5 m above the turbine, the pressure is 172.4 kPa and at a level 5 m below the turbine, the pressure is 89.6 kPa. The water flow rate is 0.800ms. The output of the shaft the turbine is 658 kW. The water density is 1000 kg m. If the efficiency of the turbine in converting the mechanical energy given up by the fluid to the turbine shaft is 89 % (n = 0.89). a) Draw a schematic diagram for the process b) Calculate the frictional loss in the turbine in J kg %3D
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:Water is stored in an elevated reservoir. To generate power, water flows from this
reservoir down through a large conduit to a turbine and then through a similar-sized
conduit. At a point in the conduit 89.5 m above the turbine, the pressure is 172.4 kPa and
at a level 5 m below the turbine, the pressure is 89.6 kPa. The water flow rate is
0.800ms. The output of the shaft the turbine is 658 kW. The water density is 1000
kg m. If the efficiency of the turbine in converting the mechanical energy given up by
the fluid to the turbine shaft is 89 % (n = 0.89).
a) Draw a schematic diagram for the process
b) Calculate the frictional loss in the turbine in J kg
%3D
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