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+clc

+clear

+printf("Example 10.12 | Page number 361 \n\n");

+//Find the work and heat interactions during the expansion process

+//Given data

+m =0.1 //kg

+p1 = 10 //bar 

+p2 = 1 //bar

+//Solution

+//From saturated steam table

+v1 = 0.1944 //m^3/kg

+v2 = (p1/p2)^(1/1.3)*v1 //m^3/kg

+W = m*(p1*v1-p2*v2)*100/(1.3-1) //kJ

+printf("Work during expansion process = %.2f kJ\n",W)

+h1 = 2778.1 //kJ/kg

+u1 = (h1 - p1*v1*100) //kJ/kg

+

+vf = 0.001043 //m^3/kg

+vg = 1.694 //m^3/kg

+x2 = (v2-vf)/(vg-vf) //Dryness fraction

+hf = 417.33 //kJ/kg

+hg = 2675.5 //kJ/kg

+h2 = (1-x2)*hf + x2*hg //kJ/kg

+u2 = h2 - p2*v2*100 //kJ/kg

+printf("Heat rejected from steam = %.2f kJ",W+m*(u2-u1))