HW%2012%20solution - I...“ .. HAG l1 Sblu'ilC/w P9-8 (a)...

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Unformatted text preview: I...“ .. HAG l1 Sblu'ilC/w P9-8 (a) Use Polymath to solve the differential equations developed from the unsteady state heat and mass balances. See Polymath program P9-8-a.pol POLYMATfl Resglts No Title 08-11-2005, Rcv5.l.233 Calculated values of the DEQ variables Variable initial value minimal value maximal value final value t 0 0 300 300 Cc 0.1 0.1 205.63558 205.63558 Cs 300 43.080524 300 43.080524 T 27B 27B 333.55016 333.55016 Iprime 0.0866522 6.499E—04 0.3593146 6.499E-04 Km 5 5 5 5 mulmax 0.5 0.5 0.5 0.5 Yes 0.8 0.3 0.8 0.8 mu 0.0426159 2.912E—04 0.1725264 2.912E-04 Q 0 0 0 0 Cps 74 74 74 74 ern —2.0E+04 —2.0E+04 -2.0E+04 —2.0E+04 V 25 25 25 25 rho 1000 1000 1000 1000 rg 0.0042616 0.0042616 24.727101 0.0598648 Cpc 74 74 74 74 re -0.005327 w30.908876 —0.005327 —0.074831 ODE Regort [STIFFI Differential equations as entered by the user [1] d(Cc)ld(t) = rg [2] d(Cs)/d(t) = -rngcs [3] d(T)/d(t) = (Q+(-ern)*(rg))i'(rho*Cps) Explicit equations as entered by the user [1] Iprime = (0.0038‘T‘exp(21.6-6700fl'))l(1+exp(153-48000/T)) {2] Km = 5.0 [3] mu1max = 0.5 [41 Yes = 0.8 [5] mu = mu1max*lprime*(Csl(Km+Cs)) [6] Q = 0 [7] Cps = 74 [a] ern = -20000 [9] V = 25 [10] rho =1000 [11] rg = mu“Cc I12] Cpc = 74 [13] rs = -rlecs Pub-~41 340 326 312 298 284 0 60 120 180 240 300 040 0.32 0.24 lZl 0.16 0.08 own 60 120 180 240 300 P9—8 (b) When we change the initial temperature we find that the outlet concentration of species C has a maximum at T0 = 300 80 64 4s 32 16 280 290 300 To 310 320 330 q”%C -- S21 Solution TBA-.5 ‘ . 51M 1L= USMfl #12:, . C, k. PI C, =__ «:3 . 73% + s. .‘I @195. k. CI.S_ : E} CM : C’rem; K1731» Pun—C CV +.C-D$ wad + lD-L’L r Ramp-tron: I-i-‘Ud 1-?- a) 97—4—5 “'6 11-5 V9" 5 ‘5“. m S [I] K: P]; CV Kw: ‘l “'1 MM KTBA': k3 T“; r” Ci: \ k2. k—z. ‘. m4}; Q, a“ 3‘!“ I V "gal-r £29.; tr + W awn—«5H All-” “A” .._V. fl .4 A . 1‘s. Hm «Asa/ma) k3“; CI-s .. w-rtk $3411) (I) ‘r 0+) .. i . - K: P: - or __ _ ‘4‘“ Km. DT— + Ker' pTSA- M 1 k’ Pa P: xv K1 9: + Km-k Pm \1— m: + Lnkvm, Q STE-f _51.v~.u¢ Chunk («chm/b), ...Ii4l.|; 1:1‘ .filal [211* EC ...
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HW%2012%20solution - I...“ .. HAG l1 Sblu'ilC/w P9-8 (a)...

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