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Diffstat (limited to '2870/CH10/EX10.8/Ex10_8.sce')
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1 files changed, 49 insertions, 0 deletions
diff --git a/2870/CH10/EX10.8/Ex10_8.sce b/2870/CH10/EX10.8/Ex10_8.sce new file mode 100755 index 000000000..852646366 --- /dev/null +++ b/2870/CH10/EX10.8/Ex10_8.sce @@ -0,0 +1,49 @@ +clc;clear;
+//Example 10.8
+
+//given data
+m1=15;
+P1=7000;
+P2=P1;
+P3=P1;
+P4=500;
+P5=P4;
+P6=5;
+P7=500;
+P8=5;
+P9=7000;
+P10=7000;
+
+//from steam tables
+v7=0.001005;
+v8=0.001093;
+h1=3411.4;
+h2=h1;
+h3=h1;
+h4=h1;
+h5=2739.3;
+h6=2073.0;
+h7=640.09;
+h8=137.75;
+h11=144.78;
+
+//calculations
+wIin=v8*(P9-P8);
+wIIin=v7*(P10-P7);
+h9=h8+wIin;
+h10=h7+wIIin;
+Qmax=m1*(h1-h7);
+disp(Qmax,'the maximum rate in kW');
+Wtout=m1*(h3-h6);//turbine
+Wpin=m1*wIin;//pump
+Wnet=Wtout-Wpin;
+disp(round(Wnet/1000),'the power produced in MW');
+Qp=0;
+Qin=m1*(h1-h11);
+Eu=(Wnet+Qp)/Qin;
+disp(Eu,'the utilization factor');
+m4=0.1*m1;
+m5=0.7*m1;
+m7=m4+m5;
+Qout=m4*h4+m5*h5-m7*h7;
+disp(Qout/1000,'the rate of process heat supply in MW')
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