A vacuum evaporator has an absolute pressure of 25 kPa. The level in the evaporator is 10 m above the centreline of the pump. The pump discharges into a storage tank located 20 m above the pump with the discharge point 6 m above the bottom of the tank and a pressure blanket of 100 kPa (gauge). Liquid velocities are 3 m/s in the suction piping and 4 m/s in the discharge line. Friction loss in the suction line is 0.5 m and in the discharge line is 1.8 m.
(a) Using Bernoulli's equation, calculate the head generated by the pump assuming the density of the liquid to be 967.5 Kg/m3