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Methane gas is compressed to 40 bar and precooled to 280 K. The expander and throttle exhaust to a pressure of 1 bar. Recycle methane at this pressure leaves the exchanger system. Assume no heat leaks into the system from the surroundings, an expander efficiency of 75%, and an expander exhaust of saturated vapor. For a draw-off to the expander of 25% of the methane entering the exchanger system (x = 0.25, what fraction z of the methane is liquefied, and what is the temperature of the high-pressure stream entering the throttle valve? Use 9th edition handbook, Section 2, find the thermodynamic properties of methane. Use 2 decimal points. 8. T5 (K) 9. z 10. Name of the process: C...

Methane gas is compressed to 40 bar and precooled to 280 K. The expander and throttle exhaust to a pressure of 1 bar. Recycle methane at this pressure leaves the exchanger system. Assume no heat leaks into the system from the surroundings, an expander efficiency of 75%, and an expander exhaust of saturated vapor. For a draw-off to the expander of 25% of the methane entering the exchanger system (x = 0.25, what fraction z of the methane is liquefied, and what is the temperature of the high-pressure stream entering the throttle valve? Use 9th edition handbook, Section 2, find the thermodynamic properties of methane. Use 2 decimal points. 8. T5 (K) 9. z 10. Name of the process: C...

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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Methane gas is compressed to 40 bar and precooled to 280 K. The expander and throttle exhaust to a pressure of 1 bar. Recycle methane at this pressure leaves the exchanger system. Assume no heat leaks into the system from the surroundings, an expander efficiency of 75%, and an expander exhaust of saturated vapor. For a draw-off to the expander of 25% of the methane entering the exchanger system (x = 0.25, what fraction z of the methane is liquefied, and what is the temperature of the high-pressure stream entering the throttle valve? Use 9th edition handbook, Section 2, find the thermodynamic properties of methane. Use 2 decimal points. 8. T5 (K) 9. z 10. Name of the process: C...
Transcribed Image Text:Methane gas is compressed to 40 bar and precooled to 280 K. The expander and throttle exhaust to a pressure of 1 bar. Recycle methane at this pressure leaves the exchanger system. Assume no heat leaks into the system from the surroundings, an expander efficiency of 75%, and an expander exhaust of saturated vapor. For a draw-off to the expander of 25% of the methane entering the exchanger system (x = 0.25, what fraction z of the methane is liquefied, and what is the temperature of the high-pressure stream entering the throttle valve? Use 9th edition handbook, Section 2, find the thermodynamic properties of methane. Use 2 decimal points. 8. T5 (K) 9. z 10. Name of the process: C...
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