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+clc;clear;
+//Example 10.9
+
+//given data
+P1=5;
+P2=7000;
+P3=P2;
+T3=500;
+P4=P1;
+
+//gas cycle from Ex9-6
+//d stands for '
+h4d=880.36;
+T4d=853;
+qin=790.58;
+wnetg=210.41;
+nth=0.266
+h5d=451.80;
+//steam cycle
+h2=144.78;
+T2=33;
+h3=3411.4;
+T3=500;
+wnets=1331.4;
+nth=0.408;
+
+//calculations
+//Ein = Eout
+//y is the ratio of ms/mg
+y=(h4d-h5d)/(h3-h2);
+disp(y,'the ratio of the mass flow rates of the steam and the combustion gases');
+wnet=wnetg+y*wnets
+nth=wnet/qin;
+disp(nth,'the thermal efficiency of the combined cycle')