Example 8-10: Type LEP - 8 - 10

 

Example 8-10 type LEP_8_10

% "LEP_8_10" % % % % % % %

m-file to solve example 8-10 x(1)=fa x(2)=fb x(3)=fc x(4)=T xdot(1)=d(fa)/dv, xdot(2)=d(fb)/dv, xdot(3)=d(fc)/dv, etc.

function xdot=LEP_8_10(v,x) ft=x(1)+x(2)+x(3); k1a=10*exp(4000*(1/300-1/x(4))); k2a=.09*exp(9000*(1/300-1/x(4))); Cto=.1; Ca=Cto*x(1)/ft; Cb=Cto*x(2)/ft; Cc=Cto*x(3)/ft; r1a=-k1a*Ca; r2a=-k2a*Ca^2; xdot(1,:)=r1a+r2a; xdot(2,:)=-r1a; xdot(3,:)=-r2a/2; xdot(4,:)=(4000*(373-x(4))+(-r1a)*20000+(-r2a)*60000)/ (90*x(1)+90*x(2)+180*x(3));

ic=[100;0;0;423]; vspan=[0 1]; [v,x]=ode45('LEP_8_10',vspan,ic); T=x(:, 4);  plot(v,T);title('Example 8-10');xlabel('volume');yla 8-10');xlabel('volume');ylabel('T') bel('T')

 

Example 8.11 900 850 800 750 700       T650

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  title('Example 'Example 8-10');xlabel('volume'); 8-10');xlabel('volu me');  plot(v,x(:,1:3)); title( ylabel('fa,fb,fc');

 

Example 8.11 100

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