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propane is combined with 50% excess air in a mixer before being fed to a furnace. The propane (C3H5) enter the mixer at 25 degrees celsius at a rate of 300Kg/h and the air enters the mixer at 500 degrees celsius. Heat is lost form the mixer to the surroundeings at a rate of 8.5KW. Given MW(propane= 4.4; Cp(Propane)=0.068032KJ/mol. degrees celsius; Cp(air) =0.0289KJ/mol degrees celsius. Use table 8 for calculation.  a. Calculate the molar flow of air that enters the mixer.

propane is combined with 50% excess air in a mixer before being fed to a furnace. The propane (C3H5) enter the mixer at 25 degrees celsius at a rate of 300Kg/h and the air enters the mixer at 500 degrees celsius. Heat is lost form the mixer to the surroundeings at a rate of 8.5KW. Given MW(propane= 4.4; Cp(Propane)=0.068032KJ/mol. degrees celsius; Cp(air) =0.0289KJ/mol degrees celsius. Use table 8 for calculation.  a. Calculate the molar flow of air that enters the mixer.

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
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propane is combined with 50% excess air in a mixer before being fed to a furnace. The propane (C3H5) enter the mixer at 25 degrees celsius at a rate of 300Kg/h and the air enters the mixer at 500 degrees celsius. Heat is lost form the mixer to the surroundeings at a rate of 8.5KW. Given MW(propane= 4.4; Cp(Propane)=0.068032KJ/mol. degrees celsius; Cp(air) =0.0289KJ/mol degrees celsius. Use table 8 for calculation. 

a. Calculate the molar flow of air that enters the mixer. 

H(kJ/mol) Reference state: Gas, Pref = 1 atm, Tref = 25°C T Air 0₂ N₂ -0.72 -0.73 -0.73 0.00 0.00 0.00 2.19 2.24 2.19 5.31 5.13 300 8.17 8.47 8.12 7.96 8.17 11.58 9.57 0 25 100 200 H₂ со CO2 H2O -0.72 -0.73 -0.92 -0.84 0.00 0.00 2.16 2.19 2.90 5.15 500 5.06 5.16 0.00 7.08 0.00 2.54 6.01 400 11.24 11.72 11.15 10.89 11.25 16.35 13.23 14.37 15.03 14.24 13.83 14.38 21.34 17.01 600 17.55 18.41 17.39 16.81 17.57 26.53 20.91 700 20.80 21.86 20.59 19.81 20.82 31.88 24.92 800 24.10 25.35 23.86 22.85 24.13 37.36 29.05 900 27.46 28.89 27.19 25.93 27.49 42.94 33.32 1000 30.86 32.47 30.56 29.04 30.91 48.60 37.69 1100 34.31 36.07 33.99 32.19 34.37 54.33 42.18 1200 37.81 39.70 37.46 35.39 37.87 60.14 46.78 1300 41.34 43.38 40.97 38.62 41.40 65.98 51.47 1400 44.89 47.07 44.51 41.90 44.95 71.89 56.25 1500 48.45 50.77 48.06 45.22 48.51 77.84 61.09
Transcribed Image Text:H(kJ/mol) Reference state: Gas, Pref = 1 atm, Tref = 25°C T Air 0₂ N₂ -0.72 -0.73 -0.73 0.00 0.00 0.00 2.19 2.24 2.19 5.31 5.13 300 8.17 8.47 8.12 7.96 8.17 11.58 9.57 0 25 100 200 H₂ со CO2 H2O -0.72 -0.73 -0.92 -0.84 0.00 0.00 2.16 2.19 2.90 5.15 500 5.06 5.16 0.00 7.08 0.00 2.54 6.01 400 11.24 11.72 11.15 10.89 11.25 16.35 13.23 14.37 15.03 14.24 13.83 14.38 21.34 17.01 600 17.55 18.41 17.39 16.81 17.57 26.53 20.91 700 20.80 21.86 20.59 19.81 20.82 31.88 24.92 800 24.10 25.35 23.86 22.85 24.13 37.36 29.05 900 27.46 28.89 27.19 25.93 27.49 42.94 33.32 1000 30.86 32.47 30.56 29.04 30.91 48.60 37.69 1100 34.31 36.07 33.99 32.19 34.37 54.33 42.18 1200 37.81 39.70 37.46 35.39 37.87 60.14 46.78 1300 41.34 43.38 40.97 38.62 41.40 65.98 51.47 1400 44.89 47.07 44.51 41.90 44.95 71.89 56.25 1500 48.45 50.77 48.06 45.22 48.51 77.84 61.09
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