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clc
clear
Ms=20; //in kg
Mw=2; //in kg
Cps=2.1; //in kJ/kg K
x1=Ms/(Ms+Mw); //Dryness fraction
//At 12 bar pressure
Hf1=798.6; //in kJ/kg
Hfg1=1986.2; //in kJ/kg
//At 1 bar pressure
Hg2=2675.5; //in kJ/kg
Tsup=110+273; //in K
Tsat=99+273; //in K
//For throttling, H1=H2
H2=Hg2+(Cps*(Tsup-Tsat));
x2=(H2-Hf1)/Hfg1;
x=x1*x2;
printf('Dryness fraction of steam: %2.4f kJ',x);
printf('\n');
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