From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001
From: priyanka
Date: Wed, 24 Jun 2015 15:03:17 +0530
Subject: initial commit / add all books

---
 2006/CH3/EX3.7/ex3_7.sce | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
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(limited to '2006/CH3/EX3.7/ex3_7.sce')

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+clc;
+p=6000; // Pressure of nitrogen gas in kPa
+T=150; // Temperature of nitrogen gas in kelvin
+V=250; // Volume of tank in litres
+R_1=8.3143; // Universal gas constant in kJ/kmol K
+M=28.1013; // Molecular mass
+// (a).Beattie - Bridgeman equation of state
+// Constants for nitrogen gas
+c=4.2*10^4; Ao=136.2315; a=0.02617; Bo=0.05046; b=-0.00691;
+// By substituting these values in the following equation 
+// p=(R_1*T/v^2)*(1-(c/(vT^3)))*(v+Bo*(1-(b/v)))-(Ao/v^2*(1-(a/v)))
+// By trial and error we get
+v=0.1222; // specific volume in m^3/kmol
+m=(M*V/1000)/v; // Mass of nitrogen gas
+disp ("m^3/kmol",v,"specific volume of nitrogen gas = ","kg",m,"Mass of nitrogen gas = ","(a).Beattie - Bridgeman equation of state");
+// (b).Nitrogen tables
+// From property table of nitrogen fas
+v=0.004413;  // specific volume in m^3/kg
+m=(V/1000)/v; //  Mass of nitrogen gas
+disp ("m^3/kg",v,"specific volume of nitrogen gas = ","kg",m,"Mass of nitrogen gas = ","(b).Nitrogen tables");
+// (c).Ideal gas equation of state
+m=(p*V/1000)/(R_1*T/M); //Mass of nitrogen gas
+disp ("kg",m,"Mass of nitrogen gas = ","(c).Ideal gas equation of state");
+// (d).Generalized compressibility chart
+// The crictical properties for nitrogen gas 
+Tc=126.2; // Temperature in kelvin
+Pc=3.349; // Pressure in MPa
+// Reduced properties are
+Pr=p/Pc; Tr=T/Tc;
+z=0.6; // From chart
+m=(p*V/1000)/(z*R_1*T/M); //Mass of nitrogen gas
+disp ("kg",m,"Mass of nitrogen gas = ","(d).Generalized compressibility chart");
+disp ("Ideal gas equation of state","Generalized compressibility chart","Beattie - Bridgeman equation of state","Nitrogen tables"," (e).Arrangement the methods in order of percentage error : ");
-- 
cgit