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 heat 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 ?

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 heat 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 ?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter18: Heat Engines, Entropy, And The Second Law Of Thermodynamics

Section: Chapter Questions

Problem 61P

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