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+//Harriot P., 2003, Chemical Reactor Design (I-Edition), Marcel Dekker, Inc., USA, pp 436.
+//Chapter-10 Ex10.1 Pg No. 408
+//Title:Fraction unconverted naphthalene based on model II
+//===========================================================================================================
+clear
+clc
+//INPUT
+T_ref=273;//Reference Temperature
+T_feed=300+T_ref;//Temperature in (K)
+SV_STP=[60000 120000];//Space velocity(Hr-1)
+t_cell=0.04;//Thickness(cm)
+cell_unit_area=100/(2.54^2);//No of cells per unit area(cells/cm2)
+L_inch=6;// Length of monolithic converter (Inches)
+Epsilon=0.68;//Porosity
+myu=0.0284*(10^-2);//Viscosity of air(Poise)
+rho=6.17*10^(-4);//Density of air (g/cm3)
+
+
+//CALCULATION
+d=sqrt(1/cell_unit_area)- t_cell;
+Epsilon=(d^2/(d+t_cell)^2);
+
+//Assume the wash coating lowers d to 0.21 cm and Epsilon to 0.68:
+d_new=0.21;
+Epsilon_new =0.68
+a=4*Epsilon_new/d_new;
+SV=SV_STP.*(T_feed/(T_ref*3600));//Refer equation 10.13
+L_cm=L_inch*2.54;
+u0=SV.*(L_cm);
+u=u0.*(1/Epsilon);
+Nu=myu/rho;//Kinematic viscosity
+D_CO_N2_1=0.192;//Diffusion coefficients for binary gas mixtures(cm2/sec) at 288K
+D_CO_N2_2=D_CO_N2_1*(T_feed/288)^(1.7);////Diffusion coefficients for binary gas mixtures(cm2/sec) at 573K
+Sc=Nu/D_CO_N2_2;
+for i=1:2
+Re(i)=d_new*u(i)/Nu;
+Re_Sc_d_by_L(i)=Re(i)*Sc*(d_new/L_cm);
+Sh(i) = 3.66 *(1+0.095*Re_Sc_d_by_L(i))^(0.45);//Refer equation 10.7
+k_c(i)=Sh(i)*D_CO_N2_2/d_new;
+X(i)=1-exp((-k_c(i)*a*L_cm*u0(i)^(-1)));//Refer equation10.12
+Percent_X(i)=X(i)*100;
+end
+
+//OUTPUT
+mprintf('\n The Conversion expected for the given space velocities ');
+mprintf(' \n Space Velocity (hr-1)\t \t Conversion (%%)');
+mprintf('\n ======================================================');
+for i=1:2
+    mprintf('\n %.0f \t \t \t \t %.1f',SV_STP(i),Percent_X(i));
+end
+
+//FILE OUTPUT
+fid= mopen('.\Chapter10-Ex1-Output.txt','w');
+mfprintf(fid,'\n The Conversion expected for the given space velocities ');
+mfprintf(fid,' \n Space Velocity (hr-1)\t \t Conversion (%%)');
+mfprintf(fid,'\n ======================================================');
+for i=1:2
+    mfprintf(fid,'\n %.0f \t \t \t \t %.1f',SV_STP(i),Percent_X(i));
+end
+mclose(fid);
+
+
+//================================================END OF PROGRAM=========================================================
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