7.10 For these velocity distributions in a round pipe, indicatewhether the kinetic-energy correction factor a is greater than,equal to, or less than unity.7.11 Calculate a for case (c) in Prob. 7.10.7.12 Calculate a for case (d) in Prob. 7.10.I(a) Uniform(b) Parabolic(c) Linear(d) LinearPROBLEMS 7,10, 7.11, 7.12

Answered: Image /qna-images/answer/c35e8d61-495a-4d04-b5ed-a762040cfa04.jpg

Answered: 7.10 For these velocity distributions…

7.10 For these velocity distributions in a round pipe, indicate whether the kinetic-energy correction factor a is greater than, equal to, or less than unity.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

A Kaplan turbine has the following specifications: H =25 ft., N=400 rpm; power = 650 hp. If the efficiency of the unit is 90%, estimate (a) the flow rate, (b) approxi-mate diameter of the runner, (c) turbine setting to avoid cavitation if the location is at sea level, and (d) turbine setting to avoid cavitation if the location of the unitis at an elevation of 5000 ft. The local temperature is 60°F.Ans: (a) Q=254 cfs; (c) Hs=5.8 ft.; (d) 0.12 ft.
Two identical centrifugal pumps connected in series are used to pump water between two storage tanks that are open to the atmosphere, through a cylindrical pipe with ID of 0.1 m on both the discharge and suction side. The total equivalent length on the suction and discharge sides are 20m and 40m respectively. The change in static head is 7m. Pump Data: Q( m3/s) 0 0.01 0.02 0.03 0.04 Δh (m) 23 21.5 18.5 11 3 Assume the friction factor f to be 0.02 and is constant throughout the range of flowrates. a) Determine the operating point of the system. b) Determine the power requirement for the pumping system if the pump efficiency is 75%.
The dimensions of a Francis radial-flow hydroturbine are r2 = 2.00 m, r1 = 1.30 m, b2 = 0.85 m, and b1 = 2.10 m, where location 2 is the inlet and location 1 is the outlet. At the turbine inlet and outflow, the runner blade angles are β2 = 71.4° and β1 = 15.3°, respectively. The runner rotates at a rate of ń = 160 rpm. At design conditions, the volume flow rate is 80.0 m3 /s. (a) State the necessary assumptions and calculate the angle α2 at which the wicket gates should turn the flow (Figure Q1), with α2 measured from the radial direction at the runner inlet. (b) Calculate the swirl angle α1 (Figure Q1), where α1 is the angle measured from the radial direction at the runner output. (c) Calculate the needed net head and power output. (d) Discuss the actual power output and head required for actual case of the turbine (irreversibility not neglected). (Properties For water at 20oC, ρ = 998.0 kg/m3)
9. Find the discharge through a rectangular orifice 2.2 m wide and 1.3 m deep fitted to a casier tank. The water level in a team is 2.5 m above the top edge of orifice. 10. Find the discharge through a rectangular orifice 3.2 m wide and 1.7 m deep fitted to a casier tank. The water level in a team is 3.3 m above the top edge of orifice. Take Cd = 0.6 i 11. Loss of head due to friction is a) Inversely proportional to velocity b) Inversely proportional to hydraulic radius d) Directly proportional to gravitational constant b) Directly proportional to hydraulic radius 12. Which among the following does not depend on the friction factor? a) Pipe diameter b) Fluid density ¢) Viscosity d) Weight 12. How do we calculate losses for a larger range of Reynolds number? a) Scatter chart b) Bar chart ¢) Moody chart d) Column histogram ) is formula for friction factor of circular pipes? 14. Which of the following equations is a result of momentum conservation for inviscid steady flows? a) Bernoulli's…
A Francis radial-flow hydroturbine has the following dimensions, where location 2 is the inlet and location 1 is the outlet: r2 = 2.00 m, r1 = 1.30 m, b2 = 0.85 m, and b1 = 2.10 m. The runner blade angles are ?2 = 71.4° and ?1 = 15.3° at the turbine inlet and outlet, respectively. The runner rotates at n. = 160 rpm. The volume flow rate at design conditions is 80.0 m3/s. Irreversible losses are neglected in this preliminary analysis. Calculate the angle ?2 through which the wicket gates should turn the flow, where ?2 is measured from the radial direction at the runner inlet. Calculate the swirl angle ?1, where ?1 is measured from the radial direction at the runner outlet. Does this turbine have forward or reverse swirl? Predict the power output (MW) and required net head (m).
Provide clear and complete solution as well as diagram. The initial condition of air in an air compressor is 97 kPa and 27 oC and discharges air at 350 kPa. The bore and stroke are 250 mm and 280 mm, respectively with percent clearance of 6 percent running at 310 rpm. Find the volume of air at suction in m3/hr. A. 232.61 C. 156.34B. 289.16 D. 135.23
Two reservoirs, which differ in surface elevation by 40 m,are connected by a new commercial steel pipe of diameter8 cm. If the desired flow rate is 200 N/s of water at 20°C,what is the proper length of the pipe?
A 0.30 m X 0.40 m branch duct leaves a 0.30 m X 0.60 m main duct at an angle of 60°. The air temperature is 20°C. The dimensions of the main duct remain constant following branch. The flow rate upstream is 2.7 m3/s. Find the pressure downstream in the main duct if at 20°C, the mass per unit volume is 1.2041 kg/m3. Group of answer choices 436 Pa 634 Pa 643 Pa 346 Paplease show full soluton for review and analysis
7.) The pressure drop associated with hydraulic fluid with a Sg of 0.93 flowing across a 1-in. I.D. sharp edge orifice is 20 lbf/in2 . If the discharge coefficient is 0.60, what flow rate in gal/min could be expected through the orifice?
In a pipe of diameter 300mm the center line velocity and the velocity at a point 100mm from the center, as measured by pitot tube are 2.4 m/s and 2.0 m/s respectively. Assume the flow in the pipe to be turbulent find: 1-Dischrge through the pipe,2-Coefficient of friction, 3 Height of roughness projections.Please do not waste my question solve with correct answers only.
Ethylene glycol at 20°C flows through 125 meters of cast iron pipe of diameter 6 cm. The measured pressure drop is 250 kPa. Neglect minor losses. Using a noniterative formulation, estimate the flow rate in m3/h. For ethylene glycol at 20°C, take ρ = 1117 kg/m3 and μ = 0.0214 kg/ms. For cast iron, take ε = 0.26 mm. Take π = 22/7.
P7.) A pipe system, connecting two reservoirs whose difference in water surface elevation is 13 m, consists of 320 m of 600 mm diameter pipe (pipe 1), branching into 640 m of 300 mm diameter pipe (pipe 2) and 640 m of 450 mm diameter pipe (pipe 3) in parallel, which join again to a single 600 mm diameter line 1300 m long (pipe 3). Assuming f = 0.032 for all pipes, determine the flow rate in each pipe. Subject: fluid mechanic Lesson: *Conservation of Energy *Fluid Flow in Pipes