It is proposed to use a geothermal hot water supply to run a turbine at water vapor, using the device outlined in Figure 01. High pressure water, 1.5 MPa and 180 ºC, is strangled, in an adiabatic instant evaporator, in order to obtain liquid and steam at a pressure of 400 kPa. The saturated liquid exits through the bottom of the evaporator, while the saturated steam is removed to feed the turbine. Steam comes out of turbine at 10 kPa and with a titer equal to 90%. Knowing that the turbine produces a power of 1 MW, determine: a) The hot water flow (1), in kg / h, which must be provided by the geothermal source. b) What is the temperature at point 2?
It is proposed to use a geothermal hot water supply to run a turbine at water vapor, using the device outlined in Figure 01. High pressure water, 1.5 MPa and 180 ºC, is strangled, in an adiabatic instant evaporator, in order to obtain liquid and steam at a pressure of 400 kPa. The saturated liquid exits through the bottom of the evaporator, while the saturated steam is removed to feed the turbine. Steam comes out of turbine at 10 kPa and with a titer equal to 90%. Knowing that the turbine produces a power of 1 MW, determine: a) The hot water flow (1), in kg / h, which must be provided by the geothermal source. b) What is the temperature at point 2?
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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It is proposed to use a geothermal hot water supply to run a turbine at water vapor, using the device outlined in Figure 01. High pressure water, 1.5 MPa and 180 ºC, is strangled, in an adiabatic instant evaporator, in order to obtain liquid and steam at a pressure of 400 kPa. The saturated liquid exits through the bottom of the evaporator, while the saturated steam is removed to feed the turbine. Steam comes out of turbine at 10 kPa and with a titer equal to 90%. Knowing that the turbine produces a power of 1 MW, determine:
a) The hot water flow (1), in kg / h, which must be provided by the geothermal source.
b) What is the temperature at point 2?
Transcribed Image Text:Hot water
saturated
2
steam outlet
turbine
3
output
saturated
liquid outlet
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