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Q.20 Steam at 45 bar and 450°C (specific volumeVi= 70 liter/Kg, specific internal energy Ui=3006KJ/Kg) enters a turbine at a velocity of 60 m/sec and flow rate of 500 Kg/hr. The steam leaves the turbine at the same level of the inlet point at 1 bar and 100 °C (specific volume V2= 1700 liter/Kg, specific internal energy U2=2506KJ/Kg) and at velocity of 300 m/sec. Heat is lost from the turbine at a rate of 10000Kcal/hr. Calculate: (a) the specific change in enthalpy in KJ/Kg. (b) The shaft work produced from the turbine in KW.

Q.20 Steam at 45 bar and 450°C (specific volumeVi= 70 liter/Kg, specific internal energy Ui=3006KJ/Kg) enters a turbine at a velocity of 60 m/sec and flow rate of 500 Kg/hr. The steam leaves the turbine at the same level of the inlet point at 1 bar and 100 °C (specific volume V2= 1700 liter/Kg, specific internal energy U2=2506KJ/Kg) and at velocity of 300 m/sec. Heat is lost from the turbine at a rate of 10000Kcal/hr. Calculate: (a) the specific change in enthalpy in KJ/Kg. (b) The shaft work produced from the turbine in KW.

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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Q.20 Steam at 45 bar and 450°C (specific volumeVi= 70 liter/Kg, specific internal energy Uj=3006KJ/Kg) enters a turbine at a velocity of 60 m/sec and flow rate of 500 Kg/hr. The steam leaves the turbine at the same level of the inlet point at 1 bar and 100 °C (specific volumeV2= 1700 liter/Kg, specific internal energy U2=2506KJ/Kg) and at velocity of 300 m/sec. Heat is lost from the turbine at a rate of 10000Kcal/hr. Calculate: (a) the specific change in enthalpy in KJ/Kg. (b) The shaft work produced from the turbine in KW.
Transcribed Image Text:Q.20 Steam at 45 bar and 450°C (specific volumeVi= 70 liter/Kg, specific internal energy Uj=3006KJ/Kg) enters a turbine at a velocity of 60 m/sec and flow rate of 500 Kg/hr. The steam leaves the turbine at the same level of the inlet point at 1 bar and 100 °C (specific volumeV2= 1700 liter/Kg, specific internal energy U2=2506KJ/Kg) and at velocity of 300 m/sec. Heat is lost from the turbine at a rate of 10000Kcal/hr. Calculate: (a) the specific change in enthalpy in KJ/Kg. (b) The shaft work produced from the turbine in KW.
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