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Diffstat (limited to '3821/CH10/EX10.21')
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diff --git a/3821/CH10/EX10.21/Example10_21.sce b/3821/CH10/EX10.21/Example10_21.sce new file mode 100644 index 000000000..53df24b39 --- /dev/null +++ b/3821/CH10/EX10.21/Example10_21.sce @@ -0,0 +1,29 @@ +/////////Chapter 10 Properties Of Steam
+///Example 10.21 Page No:201
+/// Find Final enthalpy of steam
+//Input data
+clc;
+clear;
+m=4; //Steam in Kg
+P=13; //Absolute pressure in bar
+tsup1=450; //Absolute temp in degree celsius
+deltaH=2.8*10^3;
+Cps=2.3; //loses in MJ
+//from steam table at 13 bar
+ts=191.6; //In degree celsius
+Vg=0.1511; //In m^3/Kg
+hf=814.7; //In m^3/Kg
+hfg=1970.7; //In KJ/Kg
+hg=2785.4; //In KJ/Kg
+
+///Calculation
+h1=hg+Cps*(tsup1-ts); //Initial enthalpy of steam in KJ/Kg
+Deltah=deltaH/m; //Change in enthalpy/unit mass in KJ/Kg
+h2=h1-Deltah; //Final enthalpy of steam in KJ/Kg
+x2=(h2-hf)/hfg; //wet & dryness fraction
+
+//Output
+printf('Initial enthalpy of steam=%f Kj/Kg \n ',h1);
+printf('Change in enthalpy/unit mass=%f Kj/Kg \n ',Deltah);
+printf('Final enthalpy of steam= %f KJ/Kg \n',h2);
+printf('wet & dryness fraction=%f \n',x2);
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