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| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /1040/CH6/EX6.3/Chapter6_Ex3.sce | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
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diff --git a/1040/CH6/EX6.3/Chapter6_Ex3.sce b/1040/CH6/EX6.3/Chapter6_Ex3.sce new file mode 100644 index 000000000..e84f6ca10 --- /dev/null +++ b/1040/CH6/EX6.3/Chapter6_Ex3.sce @@ -0,0 +1,59 @@ +//Harriot P., 2003, Chemical Reactor Design (I-Edition), Marcel Dekker, Inc., USA, pp 436.
+//Chapter-6 Ex6.3 Pg No. 248
+//Title:Effect of Axial dispersion and length on conversion
+//====================================================================================================================
+clear
+clc
+// COMMON INPUT
+u=1;//Superficial velocity (cm/s)
+D=2*10^(-5)//Molecular Diffusivity(cm2/s)
+Re=30;//Reynolds No.
+Pe_a=0.25;//Peclet No. corresponding Re No. from Fig 6.10
+dp=3*(10^-1);//Particle Size (cm)
+L=48;//Length of the bed (cm)
+X_A=0.93;//Conversion
+L_old=48;// Old bed length (cm)
+L_new=L_old/2;//New bed length (cm)
+
+
+
+//CALCULATION (Ex6.3.a)
+Pe_dash=Pe_a*L/dp;//Refer Pg.No.247
+one_minus_X_A=(1-X_A);
+k_rho_L_by_u1=2.65;//From Fig6.12 for given Pe_dash
+X_A1=1-exp(-k_rho_L_by_u1);
+//To increase the conversion more catalyst is needed
+k_rho_L_by_u2=2.85;//From Fig6.12
+X_A2=1-exp(-k_rho_L_by_u2);
+Percentage_excess_cat_a=((k_rho_L_by_u2-k_rho_L_by_u1)/k_rho_L_by_u1)*100;
+
+//CALCULATION(Ex6.3.b)
+k_rho_L_by_u_new=k_rho_L_by_u1/2;
+X_A_cal=(1-exp(-k_rho_L_by_u_new));//Calculated conversion
+Pe_dash_new=Pe_dash/2;
+k_rho_L_by_u_graph=1.3992;//Value obtained from Figure6.12 for the calculated conversion
+Percentage_excess_cat_b=((k_rho_L_by_u_graph-k_rho_L_by_u_new)/k_rho_L_by_u_new)*100;
+
+//OUTPUT(Ex6.3.a)
+mprintf('\n OUTPUT Ex6.3.a');
+mprintf('\n==========================================================');
+mprintf('\n The effect of axial dispersion is significant and the percentage excess of catalyst = %.0f%%',Percentage_excess_cat_a );
+
+//OUTPUT (Ex6.3.b)
+mprintf('\n\n\n OUTPUT Ex6.3.b');
+mprintf('\n==========================================================');
+mprintf('\n The effect of axial dispersion is less on reducing the bed length \n The percentage excess of catalyst = %.0f%%',Percentage_excess_cat_b );
+
+//FILE OUTPUT
+fid= mopen('.\Chapter6-Ex3-Output.txt','w');
+mfprintf(fid,'\n OUTPUT Ex6.3.a');
+mfprintf(fid,'\n==========================================================');
+mfprintf(fid,'\n The effect of axial dispersion is significant and the percentage excess of catalyst = %.0f%%',Percentage_excess_cat_a );
+mfprintf(fid,'\n\n\n OUTPUT Ex6.3.b');
+mfprintf(fid,'\n==========================================================');
+mfprintf(fid,'\n The effect of axial dispersion is less on reducing the bed length \n The percentage excess of catalyst = %.0f%%',Percentage_excess_cat_b );
+mclose(fid);
+//==============================================END OF PROGRAM=========================================================
+
+
+
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