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Unformatted text preview: Chapter 6 Viscous Flow in Ducts P6.110 In Fig. P6.110 the pipe entrance is sharp-edged. If the flow rate is 0.004 m3/s, what power, in W, is extracted by the turbine? Globe Turbine Open globe valve 40 m Mercury 7 in Water 10 ft Cast iron: L = 125 m, D = 5 cm P6.110 P6.106 P6.111 For the parallel-pipe system of Fig. P6.111, each pipe is cast iron, and the pressure drop p1 p2 3 lbf/in2. Compute the total flow rate between 1 and 2 if the fluid is SAE 10 oil at 20°C. Water at 20˚C 5m D = 3 in 6 cm L = 250 ft D = 5 cm , L = 2 m D = 2 in Open jet P6.111 Butterfly valve at 30˚ P6.107 is cut off flush with the wall and (b) if the butterfly valve is opened wide. P6.108 Consider the flow system of Fig. P6.102, including the 6° cone diffuser. Suppose the pump head versus flow rate is approximated by hp 45 125Q2 L = 200 ft 1 2 P6.112 If the two pipes in Fig. P6.111 are instead laid in series with the same total pressure drop of 3 lbf/in2, what will the flow rate be? The fluid is SAE 10 oil at 20°C. P6.113 The parallel gal...
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