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1 | using "types"; |
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2 | |
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3 | FlowSheet cstr_ode |
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4 | |
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5 | PARAMETERS |
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6 | fi as Real; |
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7 | beta as Real; |
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8 | delta as Real; |
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9 | q as Real; |
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10 | alfa as Real; |
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11 | S as Real; |
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12 | csi as Real; |
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13 | delta1 as Real; |
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14 | delta2 as Real; |
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15 | gama as Real; |
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16 | x1f as Real; |
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17 | x2f as Real; |
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18 | x3f as Real; |
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19 | x4f as Real; |
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20 | qc as Real (Lower=-1,Upper=20); |
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21 | |
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22 | VARIABLES |
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23 | u1 as Real (Lower=0,Upper=1); |
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24 | u2 as Real (Lower=0,Upper=1); |
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25 | u3 as Real (Lower=0,Upper=20); |
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26 | u4 as Real (Lower=0,Upper=20); |
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27 | |
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28 | SET |
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29 | |
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30 | fi = 0.133; |
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31 | beta = 8; |
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32 | delta = 1; |
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33 | q = 1; |
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34 | alfa = 1; |
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35 | S = 0.01; |
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36 | csi = 1; |
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37 | delta1 = 10; |
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38 | delta2 = 1; |
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39 | gama = 1000; |
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40 | x1f = 1; |
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41 | x2f = 0; |
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42 | x3f = 0; |
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43 | x4f = -1; |
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44 | qc = 0; |
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45 | |
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46 | EQUATIONS |
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47 | |
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48 | |
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49 | q*(x1f-u1)-u1*exp(u3/(1+(u3/gama)))*fi - diff(u1)*'s' = 0; |
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50 | |
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51 | q*(x2f-u2)-u2*fi*S*exp(csi*u3/(1+(u3/gama)))+u1*fi*exp(u3/(1+(u3/gama))) - diff(u2)*'s' = 0; |
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52 | |
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53 | q*(x3f-u3)+delta*(u4-u3)+beta*fi*(u1*exp(u3/(1+(u3/gama)))+alfa*u2*exp(csi*u3/(1+(u3/gama)))*S) - diff(u3)*'s' = 0; |
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54 | |
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55 | delta1*(qc*(x4f-u4)+delta*delta2*(u3-u4)) - diff(u4)*'s' = 0; |
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56 | |
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57 | GUESS |
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58 | u1 = 0; |
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59 | u2 = 0; |
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60 | u3 = 16; |
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61 | u4 = 16; |
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62 | |
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63 | |
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64 | INITIAL |
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65 | u1 = 0.6; |
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66 | u2 = 0.3; |
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67 | u3 = 3; |
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68 | u4 = 3; |
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69 | |
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70 | |
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71 | OPTIONS |
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72 | TimeEnd = 10; |
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73 | TimeStep = 0.2; |
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74 | Dynamic = false; |
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75 | end |
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