An equilateral triangular sewer, with each side measuring 1.5 m, is constructed of concrete and used to drain at a flow rate of 1000 kg/m⁵. The effluent has a density of 1100 kg/m³ and a viscosity of 1.25 cP. The sewer is 10 km long before entering the center. Calculate the following:
1.1 What is the perimeter of the sewer pipe (P) in meters?
1.2 What is the cross-sectional area of the sewer (A) in square meters?
1.3 What is the hydraulic radius (R) of the sewer?
1.4 What is the system pressure drop in kPa?
1.5 How much power (in watts) must the pump provide to compensate for the system, assuming a pump efficiency of 0.85?
1.6 What is the Reynolds number of the flow in the sewer?
