A junior chemical engineer designs a project to compress ethylene adiabatically from 20 and 1 bar to 200 °C and 5 bar. The flow rate of ethylene is 5 mol/s. The work supplied in the compressor is entirely produced by a turbine, in which air expands adiabatically from 4 °C and 4 bar to 1 bar. The turbine efficiency is 0.7 and the flow rate of air is 4 mol/s. Assur
A junior chemical engineer designs a project to compress ethylene adiabatically from 20 and 1 bar to 200 °C and 5 bar. The flow rate of ethylene is 5 mol/s. The work supplied in the compressor is entirely produced by a turbine, in which air expands adiabatically from 4 °C and 4 bar to 1 bar. The turbine efficiency is 0.7 and the flow rate of air is 4 mol/s. Assur
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 junior chemical engineer designs a project to compress ethylene adiabatically from 20 °C
and 1 bar to 200 °C and 5 bar. The flow rate of ethylene is 5 mol/s. The work supplied into
the compressor is entirely produced by a turbine, in which air expands adiabatically from 400
°C and 4 bar to 1 bar. The turbine efficiency is 0.7 and the flow rate of air is 4 mol/s. Assume
that both ethylene and air have ideal gas behavior with the same heat capacity Cp = 3R.
Determine
(a) The work produced by the turbine and the temperature of air leaving the turbine.
(b) Use thermodynamic laws to determine whether the designed project is possible to
compress ethylene?
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Step 1: The Steady Flow Energy Balance Equation(SFEBE)
VIEWStep 2: The Steady Flow Energy Balance Equation(SFEBE) applied to the adiabatic turbine
VIEWStep 3: (a) The exit temperature of the air from the turbine
VIEWStep 4: (a) Work produced by the turbine
VIEWStep 5: Work consumed(required) by the compressor
VIEWStep 6: (b) Feasibility of the designed project
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