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+// Example 8_1

+clc;funcprot(0);

+// Given data

+P_1=10;// kPa

+P_2=2000;// kPa

+T_3=400;// °C

+h_f=191.8;// kJ/kg

+h_1=h_f;// kJ/kg

+h_3=3248;// kJ/kg

+s_3=7.1279;// kJ/kg.K

+

+// Calculation

+v_1=0.001;// m^3/kg

+w_P=v_1*(P_2-P_1);// The pump work in kJ/kg

+h_2=h_1+w_P;// kJ/kg

+q_B=h_3-h_2;// The heat input in kJ/kg

+s_4=s_3;// kJ/kg.K

+x_4=0.8636;// The quality of steam at state 4

+h_f4=h_f;// kJ/kg

+h_fg4=2393;// kJ/kg

+h_4=h_f4+(x_4*h_fg4);// kJ/kg

+w_T=h_3-h_4;// kJ/kg

+n=(w_T-w_P)/q_B;// The cycle efficiency

+printf("\nThe maximum possible efficiency from the power cycle,n=%0.4f or %2.2f percentage.",n,n*100);