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Problem 2: Consider ethane combustion with air in a well-stirred reactor, with Af = 4.24*108 (kg/m3)0755-1, n=1.75, p = 1 atm, T = 15100K. Assume
Problem 2: Consider ethane combustion with air in a well-stirred reactor, with Af = 4.24*108 (kg/m3)0755-1, n=1.75, p = 1 atm, T = 15100K. Assume Cp to be equal and constant for all species at 2 KJ/kg-K. Using the approach as developed in class: A. Plot reactor Temperature and fuel mass fraction vs normalized Mass flow rate, (in kg/m3-s) until blowout as in Fig 6.7 in Turns. Assume To=600K. B. Produce a plot of To vs normalized mass flow rate at the blowout condition (in kg/m3-s), similar to fig 6.8 in Turns. Take the range of To to be 450K-800K. You may use equation 8.1.94 (from uploaded chapter notes) Table 5.1 Single-step reaction rate parameters for use with Egn. 5.2 (Adapted from Ref. 1918 Fuel w N CH CH . Pre-exponential Factor, A 13.10 83.10 1.1.100 86. 10" 7.4.10 6.4.10 5.7. 1041 5.1.10 -0.3 -0.3 0.1 01 1.3 1.65 1.65 0.15 0.25 0.23 0.25 1.6 1.5 1.5 15 CH CH CH CH CH4 CH4 CH CH, CH OH CHOH . CH . . CH Activation Temperature E/R. (K) 21.35 15.098 15.098 15.098 15.098 15.098 15.098 15.098 15.098 20.131 15,098 15.098 15.098 15.098 15.098 15.098 15.09 15.098 15.09 4.6.10 7.2.10 4.2.10 38.00 3.2.10 15.104 20.10 16-10-1 2010 42-10 65.30 1.5 15 13 1.5 0.25 0.25 0.25 0.25 0.25 0.15 -0.1 -0.1 0.1 -0.1 OS 15 1.6 1XS 18S 1.65 INS 1.25 Unds of Aere consistent with concentrations in Egn. 5.2 expressed in units of gmol/em!, ...., A-1 lomolons "E,-48.4 kcal/gmal "E-30 o/gmol "E-40 kcal/mol
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