4. It is proposed to pump 10,000 kg/hr of toluene at 95 °C and 1 atm absolute pressure from the reboiler of a distillation tower, E1 to a second distillation tower,

C2. Here is a description of the piping run between E1 and C2: Segment A (E1 to P1): 3 meters of straight pipe (all pipe is Schedule 40), 90° elbow turning flow upwards, 1 meter of straight pipe, 90° elbow turning flow horizontal, 100% open gate valve. Pump, P1: increases pressure from 1 atm at E1 to 1.8 atm at C2. Segment B (P1 to control valve): 8 meters of straight pipe, 90° elbow making horizontal turn, 2 meters of straight pipe, 90° elbow turning flow upwards, 2 meters of straight pipe, 100% open gate valve, 2 meters of straight pipe, 90° elbow turning flow horizontal, 15 meters of straight pipe, 90° elbow turning flow downwards, 4 meters of straight pipe, straight-through run on a tee (other tee branch has a 100% closed globe valve attached to it), 90° elbow turning flow horizontal, reducer to decrease pipe size by one nominal inch pipe size, 0.5 meter straight pipe. • Control valve: globe valve. • Segment C (control valve to C2): 0.5 meter straight pipe, expander to increase pipe size by one nominal inch pipe size, 90° elbow turning flow upwards, straight-through run on a tee (other tee branch has a 100% closed globe valve attached to it), 3.5 meters of straight pipe. 90° elbow turning flow horizontal, 3 meters of straight pipe. a) Using Aspen and a velocity of around 8 ft/sec in the piping (except around the control valve where the velocity is increased), determine the standard nominal pipe diameter for segments A-C (all the same). b) Using Aspen, determine the theoretical horsepower required by the pump. c) If the combination of pump and motor are 65% efficient, what size (in terms of power) must the pump's motor be?