A boiler is generating saturated steam at 114.7 psi and temperature of 327.82∘F and the steam contains enthalpy of 1187.5Btu/lb. The feedwater has a temperature of 110∘F. The boiler is generating 26486lb of steam/hr and is consuming 321 gallon of fuel oil/hr containing energy of 142850Btu/gal. The Factor of Evaporation