QUESTION 4 Glycerine, with a viscosity of 0.09 kg/ms and density of 1 260 kg/m3, is pumped at a flow rate of 20 dm/min through a horizontal pipe with a diameter of 15 mm and a length of 3.5 m....

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Extracted text: QUESTION 4 Glycerine, with a viscosity of 0.09 kg/ms and density of 1 260 kg/m3, is pumped at a flow rate of 20 dm/min through a horizontal pipe with a diameter of 15 mm and a length of 3.5 m. Determine: 4.1 4.1.1 whether the flow is laminar or turbulent, and 4.1.2 the pressure loss (in Pa) across the pipe. 4.2 The water level in a dam is 250 m above the outlet of a pipeline which supplies the water to a turbine. The pipeline has a length of 1 800 m with a transmission efficiency of 75%. The flow rate through the pipeline is 240 m/min and the coefficient of friction for the pipeline is 0.007. The efficiency of the turbine is 80%. Determine: 4.2.1 the diameter of the pipeline, 4.2.2 the power delivered by the turbine, and 4.2.3 the maximum power available at the turbine.