Question 2 b) Water flows from a large reservoir through a pipe system which consists of 200 mm diameter of pipe and 50 mm diameter of nozzle as shown in Figure 3. By neglecting all energy losses, calculate; (ii) Total energy at A Note: Nozzle is exposed to the atmosphere 4 m 2 m ----- --- ------ ------ Nozzle Figure 3

Specific energy of flowing water through a rectangular channel of width 5 3 m when discharge is 10 m³/s and depth of water is 2 m is:

8. Energy Equation Water at the Lake William Dam enters a hydraulic turbine through a 30 cm diameter pipe at a rate of 0.6 m³/s and exits through a 25-cm diameter pipe. For the system, elevation effects are negligible and the pressure drop across the turbine is measured to be 148 kPa. For a combined turbine-generator efficiency of 83 percent, calculate (a) hurbine and (b) Wubrine- You look in the FE handbook and see: W turbine = 7/turbine-gen”ightutine, e turbine-genhtubine, e 30 cm diameter 25 cm diameter Turbine Generator

Energy Equation: Example 2: h₂ 80 m = Datum D = 0.2 m 0.02)V² 2g L = 2000 m- = 0.02 V² D2g A horizontal pipe carries cooling water at 10°C for a thermal power plant. The head loss in the pipe is hL Q = 0.06 m³/s where L is the length of the pipe from the reservoir to the point in question, V is the mean velocity in the pipe, and D is the diameter of the pipe. If the pipe diameter is 20 cm and the rate of flow is 0.06 m³/s, what is the pressure in the pipe at L = 2000 m? Assume a₂ = 1.