1. You are required to investigatean experiment to measure fluid friction loss in three sections of pipe. Each pipe hasdifferent characteristics.2.Study the Laboratory Handbook explaining how the experiment is conducted and the data that is taken from it.3.You are provided with a set of experimental data for the three different pipes: -1.Smooth pipe with 17mm diameter bore and length 912mm (tappings 7 & 8)2.Smooth pipe with 13.6mm diameter bore and length 912mm (tappings 13 & 14)3.Rough pipe with 17mm diameter bore (14mm effective) and length 200mm (tappings 30 & 31).Temperature in the lab on day of experiment = 15°CPipe 7,8 -Smooth pipe Φ17mm Flow Rate (litres/min)Upstream tapping (mm)Downstream tapping (mm)Difference (mm)1897786711016.6295485310115.249308428811.64869813566.96804779251.627837749Pipe 13,14 -Smooth pipe Φ13.6mm Flow Rate (litres/min)Upstream tapping (mm)Downstream tapping (mm)Difference (mm)14.88104478026413.5101078522510.269237771467.62848763855.4680275547Pipe 30,31 -Rough pipe Φ17mmFlow Rate (litres/min)Upstream tapping (mm)Downstream tapping (mm)Difference (mm)16.8686270815416.3886573513013.86883789949.7290384855
School of Physics, Engineering and Computer SciencePage 3of 48.16904864404.38910897134.Use this data (or data you have taken yourself from conducting the laboratory in the F2F sessions) to plot thefriction losses in the pipe (i.e. p(=ρg∆h)versusfluid flow(Q)). The graph should be clearly labelled and drawn in a suitable scale.5.You are then required to complete the questionsbelow inthe on-line assignment uploaded to Canvas.QUESTIONS
(i) Explain the trend for each of the sets of results using the theory from the lectures.(4 marks
(ii) What is the significance of the results for an engineer choosing a pump to drive the circuit built from these of pipes? (2 marks)
(iii) Suggest a pump characteristic for a system requiring a flow of 0.00025m3/s(2 marks)
(iv) Why are the results for the smooth pipe of diameter 17mm and the rough pipe of diameter 17mm different?(2 marks)
(v) Why are the results for the smooth pipe of diameter 17mm and the smooth pipe of diameter 13.6mm different?