/////////Chapter 10 Properties Of Steam ///Example 10.9 Page No:190 ////Find Volume of wet steam //Input data clc; clear; P=12*10^5; //Absolute pressure //From steam table (pressure basis at 12 bar) ts=188+273; //In degree celsius vf=0.001139; //In m**3/Kg vg=0.1632; //In m**3/Kg hf=798.4; //In KJ/Kg hfg=1984.3; //In KJ/Kg hg=2782.7; //In KJ/Kg x=0.94; Cps=2.3; tsup=350+273; //In degree celsius //Calcuation h=hf+x*hfg; //Enthalpy of wet steam in KJ/Kg v=(1-x)*vf+x*vg; //Volume of wet steam m**3/Kg u=h-((P*v)/10^3); //Internal Energy in KJ/Kg hg=2782.7; //Enthalpy of dry & saturated steam in KJ/Kg v1=vg; //Volume of dry & saturated steam m**3/Kg u1=hg-((P*vg)/10^3); //Internal Energy in KJ/Kg h1=hg+Cps*(tsup-ts); //Enthalpy of superheated steam in KJ/Kg vsup=vg*(tsup/ts); //Volume of superheated steam in m**3/Kg u2=h1-((P*v)/10**3); //Internal Energy in KJ/Kg ///Output printf('Enthalpy of wet steam=%f KJ/Kg \n ',h); printf('Volume of wet steam= %f m^3/Kg \n ',v); printf('Internal Energy= %f KJ/Kg \n ',u); printf('Enthalpy of dry & saturated steam=%f KJ/Kg \n',hg); printf('Volume of dry & saturated steam=%f m^3/Kg \n ',v1); printf('Internal Energy= %f KJ/Kg \n',u1); printf('Enthalpy of superheated steam=%f KJ/Kg \n ',h1); printf('Volume of superheated steam= %f m^3/kg \n',vsup); printf('Internal Energy= %f KJ/Kg \n ',u2);