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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /479/CH12/EX12.4 | |
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| -rwxr-xr-x | 479/CH12/EX12.4/Example_12_4.sce | 22 |
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diff --git a/479/CH12/EX12.4/Example_12_4.sce b/479/CH12/EX12.4/Example_12_4.sce new file mode 100755 index 000000000..cb7e915e7 --- /dev/null +++ b/479/CH12/EX12.4/Example_12_4.sce @@ -0,0 +1,22 @@ +//Chemical Engineering Thermodynamics
+//Chapter 12
+//Refrigeration
+
+//Example 12.4
+clear;
+clc;
+
+//Given
+//Water at 20 deg cel is chilled to 10 deg cel by flash evaporation
+Pv = 0.012;//Vapour pressure of water at 10 deg celsius in Kgf/sq.cm
+H1 = 20.03;//Enthalpy of liquid water at 20 deg cel in Kcal/Kg
+H2 = 10.4;//Enthalpy of liquid water at 10 deg cel in Kcal/Kg
+Hv = 601.6;//Enthalpy of saturated vapour at 10 deg cel in Kcal/kg
+
+//To calculate the pressure in the tank and the amount of make up water required
+P = Pv;//pressure in the tank = vapour pressure of water
+mprintf('The pressure in the tank is %f Kgf/sq.cm',P);
+//From equation 12.8 (page no 234)
+x = (H1-H2)/(Hv-H2);
+mprintf('\n The amount of make up water required is %f Kg',x);
+//end
\ No newline at end of file |