[20 marks overall] Two tanks are connected with 3 -in sch. 40 commercial steel pipe 625ft long. The level pipeline contains six standard 90 elbows, four open gate valves and one open globe valve (bevel seat). The system fluid can range from 800 to 850kgm3 in density and from 1.6 to 4.25cP in viscosity. Tank A's headspace pressure has minimum and maximum values of 159 and 241kPa. The corresponding values for tank B are 428 and 660kPa. The highest and lowest liquid levels in tank A are 13 and 2.4m whereas values for tank B are 39 and 30m. The flow rate range is 101.4 to 158.5gal (US)/min. Given that the maximum driving force occurs when the elevation change, pressure drop and flow rates are maximum, what size of pump (kW) is required