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/CH11/EX11.3/ex11_3.sce | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100755 2006/CH11/EX11.3/ex11_3.sce (limited to '2006/CH11/EX11.3/ex11_3.sce') diff --git a/2006/CH11/EX11.3/ex11_3.sce b/2006/CH11/EX11.3/ex11_3.sce new file mode 100755 index 000000000..cf7f84d27 --- /dev/null +++ b/2006/CH11/EX11.3/ex11_3.sce @@ -0,0 +1,28 @@ +clc; +p5=6000; // Pressure of superheated steam in kPa +T5=723.15; // Temperature of superheated steam in kelvin +p1=0.6113; // Pressure at reference state in kPa +T1=273.16; // Temperature at reference state in kelvin +hfg1=2501.3; // Latent heat of vapourization of water at reference state in kJ/kg +R_1=8.3143; // Universal gas constant of air in kJ/kmol K +// The critical state properties of water +pc=2.09; // pressure in MPa +Tc=647.3; // Temperature in kelvin +h1=0; // Reference state in kJ/kg +h2=h1+hfg1; // specific enthalpy in kJ/kg +// At point 2 +p2=p1; T2=T1; +z=0.9986; +r=18.015; +A2=(0.4278/(pc*10^4))*(Tc/T2)^2.5; // Constants +B=(0.0867/(pc*10^4))*(Tc/T2); // Constants +h2_h3=R_1*(T2/r)*(((-3/2)*(A2/B)*log (1+(B*p2/z)))+z-1); // Enthalpy difference between state 2 & 3 +// At point 5 +z1=0.9373; +A2=(0.4278/(pc*10^4))*(Tc/T5)^2.5; // Constants +B=(0.0867/(pc*10^4))*(Tc/T5); // Constants +h5_h4=R_1*(T5/r)*(((-3/2)*(A2/B)*log (1+(B*p5/z1)))+z1-1); // Enthalpy difference between state 5 & 4 +a=1.6198;b=6.6*10^-4; // Constants +h4_h3=a*(T5-T1)+b*(T5^2-T1^2)/2; // Enthalpy difference between state 3 & 4 +h5=h2-h2_h3+h5_h4+h4_h3; // Specific enthalpy at state 5 +disp ("kJ/kg",h5,"Specific enthalpy at state 5 = "); -- cgit