Applied Fluid Mechanics (7th Edition)
7th Edition
ISBN: 9780132558921
Author: Robert L. Mott, Joseph A. Untener
Publisher: PEARSON
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Chapter 19, Problem 19.12PP
To determine
Size for a rectangular duct
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What is the minimum duct size needed to move 200 cu ft per minute andmaintain duct velocity below 800 feet per minute?
Specify the dimensions of (a) a square duct and (b) a 4:1 rectangular duct that are flow-equivalent to a circular duct with a diameter Dc = 38 inches.
Using velocity reduction method, design the duct system. Take the velocity of air in main duct as 8m/sec, air density 1.2kg/m. Coranch = 0.4 Coutlet = 1 2. Using equal pressure drop method, design the duct system. Take Ap = 1pa/m, air density 1.2kg \m. Cranch = 0.4 Coutlet = 1
Chapter 19 Solutions
Applied Fluid Mechanics (7th Edition)
Ch. 19 - Determine the velocity of flow and the friction...Ch. 19 - Repeat Problem 19.1 O for duct diameters of 16,...Ch. 19 - Prob. 19.3PPCh. 19 - Determine the velocity of flow and the friction...Ch. 19 - Repeat Problem 19.40 for duct diameters of...Ch. 19 - Prob. 19.6PPCh. 19 - Prob. 19.7PPCh. 19 - '19.8 A branch duct for a heating system measures...Ch. 19 - Prob. 19.9PPCh. 19 - Prob. 19.10PP
Ch. 19 - A branch duct for a heating system measures 75250...Ch. 19 - Prob. 19.12PPCh. 19 - Prob. 19.13PPCh. 19 - Prob. 19.14PPCh. 19 - Repeat Problem 19.14, but use a five-piece elbowCh. 19 - Prob. 19.16PPCh. 19 - Prob. 19.17PPCh. 19 - Prob. 19.18PPCh. 19 - Prob. 19.19PPCh. 19 - Prob. 19.20PPCh. 19 - Compute the pressure drop as 0.20m3/s of air flows...Ch. 19 - Prob. 19.22PPCh. 19 - Compute the pressure drop as 0.85m3/s of air flows...Ch. 19 - A section of duct system consists of 42 ft of...Ch. 19 - A section of duct system consists of 38 ft of...Ch. 19 - The intake duct to a fan consists of intake...Ch. 19 - Forthe conditions shown in figs. 19.719- 19.10 0,...Ch. 19 - Forthe conditions shown in figs. 19.719- 19.10 0,...Ch. 19 - Prob. 19.29PPCh. 19 - Forthe conditions shown in figs. 19.719- 19.10 0,...
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- A horizontal air duct reduces in cross-sectional area from 0.070 m² to 0.020 m². Assuming no losses, what pressure change will occur when 6.67 N/s of air flows? (Use y = 31.4 N/m for pressure and temperature conditions involved.)arrow_forwardA well is going to be installed with a sucker rod pumping unit a. For the well to be installed with a sucker rod pump calculate the effective plunger stroke length for a well with a rod pump set at 3600 ft. The well has 3/4-in. sucker rods and 2 7/8-in. tubing, and the specific gravity of the produced liquid is 0.90. The pump speed is 12 spm, the plunger is 2 in. in diameter, and the polished rod stroke length is 64 in.The well is pumped off, so the liquid level is at the pump depth. b. For well in part a surface production rate the surface with a rod pump having a volumetric efficiency of 0.8. The oil formation volume factor is 1.2arrow_forwardFor the wye fitting below, which lies in a horizontal plane, the cross-sectional areas at sections 1, 2 and 3 are 1 ft2 , 1 ft2 and 0.25 ft2 , respectively. At these same respective sections the gage pressures are 1000 lb/ft2 , 900 lb/ft2 and 0, and the flow rates are as shown below in ft3/s or cfs. What x and y force components would have to be applied to hold the wye in place?arrow_forward
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