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Consider a power plant operating on the standard Rankine cycle (isentropic turbine and pump), where steam enters the turbine at 600 "C and exhausts at 30 kPa. The boiler operates at a pressure of 5000 kPa. You are given the data below for superheated and saturated steam. V (cm³/g) 78.616 V (cm'/g) Liquid 1.022 Superheated steam at 600 °C and 5000 kPa H (kJ kg) 3664.5 Vapour 5255.8 Saturated steam at 30 kPa H (kJ kg) Liquid 288.8 Vapour 2625.2 S (kJ K¹ kg) 7.2578 S (kJ K¹ kg) Liquid 0.9426 Vapour 7.7714 a) Sketch the standard Rankine cycle on a T-S diagram b) Show that the quality of the saturated stream at the turbine outlet is 0.925, hence find Hy (enthalpy at the turbine outlet or condenser inlet) c) Show that the work required by the pump is 5.08 kJ kg¹, hence find H, (enthalpy at the pump exit or boiler inlet)

Consider a power plant operating on the standard Rankine cycle (isentropic turbine and pump), where steam enters the turbine at 600 "C and exhausts at 30 kPa. The boiler operates at a pressure of 5000 kPa. You are given the data below for superheated and saturated steam. V (cm³/g) 78.616 V (cm'/g) Liquid 1.022 Superheated steam at 600 °C and 5000 kPa H (kJ kg) 3664.5 Vapour 5255.8 Saturated steam at 30 kPa H (kJ kg) Liquid 288.8 Vapour 2625.2 S (kJ K¹ kg) 7.2578 S (kJ K¹ kg) Liquid 0.9426 Vapour 7.7714 a) Sketch the standard Rankine cycle on a T-S diagram b) Show that the quality of the saturated stream at the turbine outlet is 0.925, hence find Hy (enthalpy at the turbine outlet or condenser inlet) c) Show that the work required by the pump is 5.08 kJ kg¹, hence find H, (enthalpy at the pump exit or boiler inlet)

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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Consider a power plant operating on the standard Rankine cycle (isentropic turbine and pump), where steam enters the turbing at 600 " and exhausts at 30 kľa. The Bone saturated t a pressure of 5000 kPa. You ars viven the data below for superheated and Superheated steam at 600 °C and 5000 kPa H (kJ kg') S (kJ K' kg') 7.2578 V (cm/g) 78.616 3664.5 V (cm'/g) Vapour 5255.8 Saturated steam at 30 kPa H (kJ kg'') Vapour 2625.2 S (kJ K kg) Liquid 0.9426 Liquid 1.022 Liquid 288.8 Vapour 7.7714 a) Sketch the standard Rankine cycle on a T-S diagram b) Show that the quality of the saturated stream at the turbine outlet is 0.925, hence find H) (enthalpy at the turbine outlet or condenser inlet) c) Show that the work required by the pump is 5.08 kJ kg', hence find H1 (enthalpy at the pump exit or boiler inlet) d) Determinc the thermal efficiency (Nth) of the above power cycle (Don't ignore pump work) c) Determinc the steam rate required for a 50 MW plant f) Determine the heat transfer rates in the boiler.
Transcribed Image Text:Consider a power plant operating on the standard Rankine cycle (isentropic turbine and pump), where steam enters the turbing at 600 " and exhausts at 30 kľa. The Bone saturated t a pressure of 5000 kPa. You ars viven the data below for superheated and Superheated steam at 600 °C and 5000 kPa H (kJ kg') S (kJ K' kg') 7.2578 V (cm/g) 78.616 3664.5 V (cm'/g) Vapour 5255.8 Saturated steam at 30 kPa H (kJ kg'') Vapour 2625.2 S (kJ K kg) Liquid 0.9426 Liquid 1.022 Liquid 288.8 Vapour 7.7714 a) Sketch the standard Rankine cycle on a T-S diagram b) Show that the quality of the saturated stream at the turbine outlet is 0.925, hence find H) (enthalpy at the turbine outlet or condenser inlet) c) Show that the work required by the pump is 5.08 kJ kg', hence find H1 (enthalpy at the pump exit or boiler inlet) d) Determinc the thermal efficiency (Nth) of the above power cycle (Don't ignore pump work) c) Determinc the steam rate required for a 50 MW plant f) Determine the heat transfer rates in the boiler.
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