The ethanol solution is pumped into a vessel 25 m above the reference point through a 25 mm diameter steel pipe at a rate of 8 m3 / hr. The pipe length is 35m and there are 2 elbows. Calculate the power requirements of the pump. The properties of the solution are density 975 kg / m3 and viscosity 4x 10-4 Pa s. a. Reynold number = ..... b. Energy Loss along the straight pipe = ..... J / kg. c. Energy Loss at curves = ..... J / kg. d. Total energy to overcome friction = ..... J / kg.
The ethanol solution is pumped into a vessel 25 m above the reference point through a 25 mm diameter steel pipe at a rate of 8 m3 / hr. The pipe length is 35m and there are 2 elbows. Calculate the power requirements of the pump. The properties of the solution are density 975 kg / m3 and viscosity 4x 10-4 Pa s.
a. Reynold number = .....
b. Energy Loss along the straight pipe = ..... J / kg.
c. Energy Loss at curves = ..... J / kg.
d. Total energy to overcome friction = ..... J / kg.
e. Energy to raise water according to height = ..... J / kg.
f. The theoretical energy requirement for the pump is kg ethanol / second = ..... J / kg.
g. Actual pump power requirement = ..... watts.
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