The Figure shown below is a parallel pipeline system with two branches used to supply lubricating water to the bearings. The main line and two branches use the same size of pipes. The pressures at section 1 and section 2 are p₁=398.1kPa and p₂=300kPa , respectively. The resistance coefficients for two bearings are K₁=5 and K₂=12. The cross section areas of two branch pipes are A = A=1.5x 10-4m². The energy loss caused by friction can be ignored. The energy loss caused by one bend is h₂=0.2 m. (8) Calculate the velocity v in branch b K₁ K₂ m/s (P₂

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Water is pumped through a 750ft long inch nominal diameter sch 40 pipe. The difference in height between the outlet and inlet planes is given as 50 ft. Pump efficiency is 80% and the power of the motor is 20 horsepower. Friction losses are given as 50 ft-lbt / lbm. Calculate the flow rate in the pipeline.

Example -5.2- It is required to pump cooling water from storage pond to a condenser in a process plant situated 10 m above the level of the pond. 200 m of 74.2 mm i.d. pipe is available and the pump has the characteristics given below. The head loss in the condenser is equivalent to 16 velocity heads based on the flow in the 74.2 mm pipe. If the friction factor = 0.003, estimate the rate of flow and the power to be supplied to the pump assuming n = 0.5 Q (m³/s) 0.0028 0.0039 0.005 0.0056 0.0059 Ah (m) 23.2 21.3 18.9 15.2 11.0