Use the information below to answer the questions that follow: A boiler that supplies the steam turbine of a Carnot cycle must raise the temperature of 20 m³ water from the 35°C through a physical change of phase, into steam at 175°C. The carnot engine is 40% efficient. a) Calculate the mass of the water at 35°C and the mass of steam generated. b) Determine the total heat energy (in kJ) that must be supplied to the boiler to generate the steam c) If the heal supplied to the boiler is 60,000 kJ: determine the work output from the cycle. d) The pressure of steam at 175 C is 9 bars. If the pressure is reduced isothermally to 7 bars, what will be the phase ?
Use the information below to answer the questions that follow: A boiler that supplies the steam turbine of a Carnot cycle must raise the temperature of 20 m³ water from the 35°C through a physical change of phase, into steam at 175°C. The carnot engine is 40% efficient. a) Calculate the mass of the water at 35°C and the mass of steam generated. b) Determine the total heat energy (in kJ) that must be supplied to the boiler to generate the steam c) If the heal supplied to the boiler is 60,000 kJ: determine the work output from the cycle. d) The pressure of steam at 175 C is 9 bars. If the pressure is reduced isothermally to 7 bars, what will be the phase ?
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:Use the information below to answer the questions that follow:
A boiler that supplies the steam turbine of a Carnot cycle must raise the temperature of
20 m³ water from the 35°C through a physical change of phase, into steam at 175°C.
The carnot engine is 40% efficient.
a) Calculate the mass of the water at 35°C and the mass of steam generated.
b) Determine the total heat energy (in kJ) that must be supplied to the boiler to generate the
steam
c) If the heal supplied to the boiler is 60,000 kJ: determine the work output from the cycle.
d) The pressure of steam at 175 C is 9 bars. If the pressure is reduced isothermally to 7 bars,
what will be the phase ?
Expert Solution
Given
(a) Mass of water and steam
T-S diagram for heating of (Water at 35°C to steam at 175°C) at 1 atm pressure
(b) Total heat energy supplied to the boiler to generate steam
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