Q20:- Ethylene is fed to a heat exchanger at a rate of 10 molefsec so that it is heated from 40°C to 100°C by a hot hydrocarbon fluid which lows counter current at a rate of 300 gm/sec with inlet temperature of 150°C. Calculate the outlet temperature of the hydrocarbon fluid assuming no change of its phase. Given that: Cpm of hydrocarbon fluid = 2.15 J/gm.C Cp of ethylene = 40.75+0.115T- 6.9x10-ST2 whereCr in J/mole.'C & T in 'C Hot hydrocarbon 300 gm'see T-150°C Ethylene (CaH) 10 mole'sec T-40"C Heat Exchanger T=100°C T-?
Q20:- Ethylene is fed to a heat exchanger at a rate of 10 molefsec so that it is heated from 40°C to 100°C by a hot hydrocarbon fluid which lows counter current at a rate of 300 gm/sec with inlet temperature of 150°C. Calculate the outlet temperature of the hydrocarbon fluid assuming no change of its phase. Given that: Cpm of hydrocarbon fluid = 2.15 J/gm.C Cp of ethylene = 40.75+0.115T- 6.9x10-ST2 whereCr in J/mole.'C & T in 'C Hot hydrocarbon 300 gm'see T-150°C Ethylene (CaH) 10 mole'sec T-40"C Heat Exchanger T=100°C T-?
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:Q20:- Ethylene is fed to a heat exchanger at a rate of 10 mole'sec so that it is heated from 40°C to
100°C by a hot hydrocarbon fluid which lows counter current at a rate of 300 gm/sec with
inlet temperature of 150°C. Calculate the outlet temperature of the hydrocarbon fluid
assuming no change of its phase.
Given that: Cpm of hydrocarbon fluid 2.15 J/gm.C
Cp of ethylene = 40.75+0.115T- 6.9x10-ST2 whereCr in J/mole.'C & T in 'C
Hot hydrocarbon
300 gm'see
T-150°C
Ethylene (CaH)
10 mole'sec
T-40"C
Heat Exchanger
T=190°C
T-?
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