Applied Fluid Mechanics
7th Edition
ISBN: 9780133414622
Author: UNTENER
Publisher: YUZU
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Chapter 9, Problem 9.9PP
For the flow of
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HW Question : The tank-pipe system is to deliver at least 12.5 m3/h of water at 20°C to the reservoir. What is the maximum roughness height ε allowable for the pipe? Neglect minor losses.
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Chapter 9 Solutions
Applied Fluid Mechanics
Ch. 9 - Compute points on the velocity profile from the...Ch. 9 - s9.2 Compute points on the velocity profile from...Ch. 9 - Compute points on the velocity profile from the...Ch. 9 - Compute points on the velocity profile from the...Ch. 9 - A small velocity probe is to be inserted through a...Ch. 9 - If the accuracy of positioning the probe described...Ch. 9 - An alternative scheme for using the velocity probe...Ch. 9 - Prob. 9.8PPCh. 9 - For the flow of 12.9L/min of water at 75C in a...Ch. 9 - A large pipeline with a 1,200m inside diameter...
Ch. 9 - Prob. 9.11PPCh. 9 - Prob. 9.12PPCh. 9 - Prob. 9.13PPCh. 9 - Prob. 9.14PPCh. 9 - Using Eq. (9-4), compute the ratio of the average...Ch. 9 - Prob. 9.16PPCh. 9 - Repeat Problem 9.16 for the same conditions,...Ch. 9 - Prob. 9.18PPCh. 9 - A shell-and-tube heat exchanger is made of two...Ch. 9 - Figure 9.14 shows a heat exchanger in which each...Ch. 9 - Figure 9.15 shows the cross section of a...Ch. 9 - Air with a specific weight of 12.5N/m3 and a...Ch. 9 - Carbon dioxide with a specific weight of...Ch. 9 - Water at 90F flows in the space between 6 in...Ch. 9 - Refer to the shell-and-tube heat exchanger shown...Ch. 9 - Refer to Fig. 9.14, which shows two DN 150...Ch. 9 - Refer to Fig. 9.15, which shows three pipes inside...Ch. 9 - Water at 10C is flowing in the shell shown in Fig....Ch. 9 - Figure 9.19 shows the cross section of a heat...Ch. 9 - Figure 9.20 shows a liquid-to-air heat exchanger...Ch. 9 - Glycerin ( sg=1.26 ) at 40C flows in the portion...Ch. 9 - Each of the square tubes shown in Fig. 9.21...Ch. 9 - A heat sink for an electronic circuit is made by...Ch. 9 - Figure 9.23 shows the cross section of a cooling...Ch. 9 - Prob. 9.35PPCh. 9 - The blade of a gas turbine engine contains...Ch. 9 - For the system described in Problem 9.24. compute...Ch. 9 - For the shell-and-tube heat exchanger described in...Ch. 9 - For the system described in Problem 9.26 compute...Ch. 9 - For the system described in Problem 9.27 compute...Ch. 9 - For the shell-and-tube heat exchanger described in...Ch. 9 - For the heat exchanger described in Problem 9.29...Ch. 9 - For the glycerin described in Problem 9.31 compute...Ch. 9 - For the flow of water in the square tubes...Ch. 9 - If the heat sink described in Problem 9.33 is 105...Ch. 9 - Compute the energy loss for the flow of water in...Ch. 9 - In Fig. 9.26 ethylene glycol ( sg=1.10 ) at 77F...Ch. 9 - Figure 9.27 shows a duct in which methyl alcohol...Ch. 9 - Prob. 9.49PPCh. 9 - Figure 9.29 shows a system in which methyl alcohol...Ch. 9 - A simple heat exchanger is made by welding...Ch. 9 - Three surfaces of an instrument package are cooled...Ch. 9 - Figure 9.32 shows a heat exchanger with internal...
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- The following system is fed by a centrifugal pump. The piping is constructed from smooth plastic of OD 55 mm, wall thickness 2.5 mm. The minor losses for the system prior to the pump are given by KL = 12.0. The system curves for this pump are attached. If the flowrate is reduced to 1.4 m3/hr, and the upstream head requirement were 17 m, what would the electrical power requirement of the pump be?arrow_forwardoil flows through a pipe as shown. The coefficient of discharge for the orifice in the pipe is 0.63 What is the discharge of oil in the pipe in l/s D = 250mm , sg =0.91 , 180 mm diameter sharp edge orifice , reading 350mmarrow_forwardIn a cast-iron piping system of 450 ft length shown below, the rate of flow is 1 cfs at 70°F. Assuming the total head losses for the flow in the system is 10 ft, what is the energy head supplied by the pump E? a. 40 ft b. 50 ft c. 60 ft d. 510 ft e. None of the abovearrow_forward
- A pipe experienced a total head loss of 15 m, determine thepressure difference from its starting point to discharge point inkPa.arrow_forwardConsidering pipe loss only, how much head is required to deliver 0.222 m³/s of heavy fuel oil at 38°C through 914 m of new cast iron pipe, 300 mm inside diameter? Use ε=0.00024 m. (ANSWER MUST BE = 41 m)arrow_forwardWater at 20°C fl ows by gravity through a smooth pipe fromone reservoir to a lower one. The elevation difference is 60 m.The pipe is 360 m long, with a diameter of 12 cm. Calculatethe expected flow rate in m3/h. Neglect minor losses.arrow_forward
- Estimate the power developed by a hydro project which has a stream of 100 l/s of flow at s 60 m of head. Assume the density of water is 993 kg/m3 and efficiency of the whole setup is 63 %.arrow_forwardA pump is being utilized to deliver a flow rate of 500 li/sec from a reservoir of surface elevation of 65 m to another reservoir of surface elevation 95 m. the total length and diameter of the sunction and discharge pipe are 500 mm,1500 m and 300 mm, 1000 m respectively. assumme a head lose of 2 meters per 100 m length of the sunction pipe and 3m per 100 m length of the discharge pipe. what is the required horsepower of the pump?arrow_forwardFor the siphon in Fig. 6.26, calculate the distance X re-quired to obtain a volume flow rate of 7.1 X 10-3m³/s.arrow_forward
- The observed pressure drop for 40°F water flowing at 16 ft/min in a 4.5-in diameter pipe is 9.68 x 10 psi/ft. Determine the relative roughness (D) of the pipe. (e/D) =arrow_forwardFor the flow of 12.9 L/min of water at 75 degrees Celcius in a plastic pipe, 16mm OD x 1.5mm wall, compute the expected maximum velocity of flow. Answer is 1.95m/s. Please show how to solve.arrow_forwardOil, SG = 0.88 and ν = 4 E-5 m2/s, flows at 400 gal/minthrough a 6-in asphalted cast iron pipe. The pipe is 0.5 milong and slopes upward at 88 in the flow direction. Computethe head loss in ft and the pressure change.arrow_forward
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