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Saturated steam (p = P"Mwt/RT) at a gauge pressure of 2.0 atm and T=120°C is to ed to heat a stream of ethane. The ethane (Mwt=30kg/kgmole) enters a heat exchanger C and 1.5 atm gauge at a rate of 795 m/min and is heated at constant pressure to The steam condenses and leaves the exchanger as a liquid at 27C. The specific Ipy of ethane at the given pressure is 941 kJ/kg at 16 °C and 1073 kJ/kg at 93°C. How energy (kW) must be transferred to the ethane to heat it from 16"C to 93°C? ning that all the energy transferred from the steam goes to heat the ethane, at what n m/s must steam be supplied to the exchanger? Given that Cpsteam= 5.980 KJ/ kg."c, of Lqukl water 4.205 KJ/ kg.°c, Awater=2257 K.J/Kg, R (Gas constant = 8.314 atm. ol.K). %3D

Saturated steam (p = P"Mwt/RT) at a gauge pressure of 2.0 atm and T=120°C is to ed to heat a stream of ethane. The ethane (Mwt=30kg/kgmole) enters a heat exchanger C and 1.5 atm gauge at a rate of 795 m/min and is heated at constant pressure to The steam condenses and leaves the exchanger as a liquid at 27C. The specific Ipy of ethane at the given pressure is 941 kJ/kg at 16 °C and 1073 kJ/kg at 93°C. How energy (kW) must be transferred to the ethane to heat it from 16"C to 93°C? ning that all the energy transferred from the steam goes to heat the ethane, at what n m/s must steam be supplied to the exchanger? Given that Cpsteam= 5.980 KJ/ kg."c, of Lqukl water 4.205 KJ/ kg.°c, Awater=2257 K.J/Kg, R (Gas constant = 8.314 atm. ol.K). %3D

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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Q14:- Saturated steam (p = P*Mwt/RT) at a gauge pressure of 2.0 atm and T=1 20°C is to be used to heat a stream of ethane. The ethane (Mwt%=30kg/kgmole) enters a heat exchanger at 16'C and 1.5 atm gauge at a rate of 795 m/min and is heated at constant pressure to 93°C. The steam condenses and leaves the exchanger as a liquid at 27°C. The specific enthalpy of ethane at the given pressure is 941 kJ/kg at 16 °C and 1073 kJ/kg at 93°C. How much energy (kW) must be transferred to the ethane to heat it from 16°C to 93°C? Assuming that all the energy transferred from the steam goes to heat the ethane, at what rate in m'/s must steam be supplied to the exchanger? Given that Cpsicam= 5.980 KJ/ kg."c, Cpm of Lquid water=4.205 KJ/ kg.'c, Awater=2257 KJ/Kg, R (Gas constant = 8.314 atm. m/mol.K).
Transcribed Image Text:Q14:- Saturated steam (p = P*Mwt/RT) at a gauge pressure of 2.0 atm and T=1 20°C is to be used to heat a stream of ethane. The ethane (Mwt%=30kg/kgmole) enters a heat exchanger at 16'C and 1.5 atm gauge at a rate of 795 m/min and is heated at constant pressure to 93°C. The steam condenses and leaves the exchanger as a liquid at 27°C. The specific enthalpy of ethane at the given pressure is 941 kJ/kg at 16 °C and 1073 kJ/kg at 93°C. How much energy (kW) must be transferred to the ethane to heat it from 16°C to 93°C? Assuming that all the energy transferred from the steam goes to heat the ethane, at what rate in m'/s must steam be supplied to the exchanger? Given that Cpsicam= 5.980 KJ/ kg."c, Cpm of Lquid water=4.205 KJ/ kg.'c, Awater=2257 KJ/Kg, R (Gas constant = 8.314 atm. m/mol.K).
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