A steam power plant operates on an ideal reheat Rankine cycle between the pressure limits of 15 MPa and 10 kPa. The mass flow rate of steam through the cycle is 12 kg/s. Steam enters both stages of the turbine at 500°C. If the moisture content of the steam at the exit of the low-pressure turbine is not to exceed 10 per cent, show the cycle on a T-s diagram with respect to saturation lines. Determine, (a)the pressure at which reheating takes place, (b)the total rate of heat input in the boiler, and (c)the thermal efficiency of the cycle.
A steam power plant operates on an ideal reheat Rankine cycle between the pressure limits of 15 MPa and 10 kPa. The mass flow rate of steam through the cycle is 12 kg/s. Steam enters both stages of the turbine at 500°C. If the moisture content of the steam at the exit of the low-pressure turbine is not to exceed 10 per cent, show the cycle on a T-s diagram with respect to saturation lines. Determine, (a)the pressure at which reheating takes place, (b)the total rate of heat input in the boiler, and (c)the thermal efficiency of the cycle.
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:A steam power plant operates on an ideal reheat Rankine
cycle between the pressure limits of 15 MPa and 10 kPa. The
mass flow rate of steam through the cycle is 12 kg/s. Steam
enters both stages of the turbine at 500°C. If the moisture
content of the steam at the exit of the low-pressure turbine
is not to exceed 10 per cent, show the cycle on a T-s diagram
with respect to saturation lines. Determine,
(a)the pressure at which reheating takes place,
(b)the total rate of heat input in the boiler, and
(c)the thermal efficiency of the cycle.
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