EBK FLUID MECHANICS
2nd Edition
ISBN: 9780134626055
Author: HIBBELER
Publisher: PEARSON CUSTOM PUB.(CONSIGNMENT)
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Chapter 10, Problem 12P
To determine
The drop in pressure.
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Water is supplied at 150 ft³/s and 70 psi to a hydraulic turbine through a 3-ft inside-diameter inlet pipe as indicated in the figure below.
The turbine discharge pipe has a 4.8-ft inside diameter. The static pressure at section (2), 10 ft below the turbine inlet, is 10 in. Hg
vacuum. If the turbine develops 2400 hp, determine the rate of loss of available energy between sections (1) and (2).
Section (1)
P₁ =70psi
Q=150ft³/s
D₁ = 3 ft
10 ft
Turbine
power loss =
i
P₂ = 10 in. Hg
vacuum
D₂ =4.8ft
Section (2)
de
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This problem studies the response of two single degree of freedom bridge systems shown in Figure 1 under three loading cases. The problem has two parts. Part A and Part B use the same loading cases but the system is modified. Assume the following three loading cases in both Part A and Part B: (a) Harmonic wind load acting on the bridge deck pw(t) = powsin(ωwt) with amplitude pow and forcing circular frequency ωw. (b) Harmonic displacement base excitation acting at the base of the bridge pier ug(t) = ugosin(ωgt) with amplitude ugo and displacement circular frequency ωg. (c) Rectangular pulse load acting on the bridge deck with amplitude pop and pulse duration td.
Part A The system includes part of a bridge deck and a bridge pier shown in Figure 1(a). For each loading case find the symbolic expression of the peak shear force in the bridge pier assuming the following: • The bridge deck is rigid and it has a mass m. • The bridge deck is rigidly connected with the bridge pier (i.e.,…
specific speed
P
#2
Q.2. A Pelton wheel turbine of 1.9 m diameter works under a head of 50 m at 150 rpm. The buckets are
exposed to water jet which delivers from a nozzle of 20 cm in diameter. Find the overall efficiency
power produced by the wheel if the buckets deflects the jet through an angle of 163°.
coefficient of velocity as 0.98 [50 Marks]
·licosply
Y
and no
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Chapter 10 Solutions
EBK FLUID MECHANICS
Ch. 10 - Prob. 1FPCh. 10 - Water at a temperature of 25°C is pumped through...Ch. 10 - Water at a temperature of 25°C flows through a...Ch. 10 - SAE 10W30 oil flows from one tank to another when...Ch. 10 - The tank is filled with water at a temperature of...Ch. 10 - Prob. 1PCh. 10 - Prob. 2PCh. 10 - Prob. 3PCh. 10 - Prob. 4PCh. 10 - Determine the flow of methane at T = 68°F in ft3/h...
Ch. 10 - Water in the old 15-in.-diameter concrete drain...Ch. 10 - Water at 20°C flows upwards through the...Ch. 10 - Water at 60°F is delivered horizontally through a...Ch. 10 - A horizontal 40-ft-long galvanized iron pipe...Ch. 10 - Air at 80°F flows through the commercial steel...Ch. 10 - If the pressure drop along the 10-ft-long...Ch. 10 - Prob. 12PCh. 10 - Prob. 13PCh. 10 - Determine the greatest air flow Q through the...Ch. 10 - Water in the concrete detention pond is to be...Ch. 10 - Water is pumped from the river through a...Ch. 10 - Prob. 17PCh. 10 - Prob. 18PCh. 10 - The 20-mm-diameter copper coil is used for a solar...Ch. 10 - Water at T = 70°F flows through the...Ch. 10 - Prob. 21PCh. 10 - A 450-ft-long horizontal commercial steel pipe...Ch. 10 - Air at 60°F is transported by the fan at the rate...Ch. 10 - A cast iron pipe having a diameter of 100 mm is...Ch. 10 - A cast iron pipe having a diameter of 100 mm is...Ch. 10 - Water at 70°F flows through the 3-in.-diameter...Ch. 10 - Prob. 27PCh. 10 - A 150-mm-diameter galvanized iron pipe is used to...Ch. 10 - Prob. 29PCh. 10 - Water at 80°F is pumped from the well through a...Ch. 10 - Prob. 31PCh. 10 - Prob. 32PCh. 10 - A 75-mm-diameter galvanized iron pipe, having a...Ch. 10 - Prob. 34PCh. 10 - Prob. 35PCh. 10 - Prob. 36PCh. 10 - Prob. 37PCh. 10 - Prob. 38PCh. 10 - Prob. 39PCh. 10 - Prob. 40PCh. 10 - Prob. 41PCh. 10 - Sewage, assumed to be water where ρ = 998.3 kg/m3,...Ch. 10 - Sewage, assumed to be water where ρ = 998.3 kg/m3,...Ch. 10 - Determine the power the pump must supply in order...Ch. 10 - Prob. 45PCh. 10 - Prob. 46PCh. 10 - Prob. 47PCh. 10 - Prob. 48PCh. 10 - Prob. 49PCh. 10 - The sump pump is required to lift water from the...Ch. 10 - The submersible pump is used to fill the...Ch. 10 - Prob. 52PCh. 10 - Prob. 53PCh. 10 - The pressure of air in a large tank at A is 40...Ch. 10 - The 100-mm-diameter commercial steel pipe...Ch. 10 - The 100-mm-diameter commercial steel pipe...Ch. 10 - Prob. 57PCh. 10 - Water flows at 900 gal/min through the...Ch. 10 - Water at 20°C flows through the 20-mm-diameter...Ch. 10 - Water at 80°F flows at 5 ft/s through the...Ch. 10 - Water at 80°F flows at 5 ft/s through the...Ch. 10 - Water at 15°C is pumped from the reservoir A into...Ch. 10 - Water at 80°F flows from the large reservoir...Ch. 10 - Water at 50°F flows through the 2-in.-diameter...Ch. 10 - An automatic sprinkler system for a yard is made...Ch. 10 - Water at 70°F is pumped through the two commercial...Ch. 10 - Prob. 67PCh. 10 - Prob. 68PCh. 10 - Water at 25°C is pumped into the galvanized iron...Ch. 10 - Prob. 70PCh. 10 - The two water tanks are connected together using...Ch. 10 - Prob. 72PCh. 10 - Prob. 73P
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- d Q.2. A Pelton wheel has a mean bucket speed of 15 m/s. The jet of water issued from a nozzle of 12 cm in diameter impinges the bucket with a velocity of 40 m/s. If the buckets deflect the jet through an angle of 165°, find the head and power generated by the turbine. Assume the hydraulic efficiency is 90% and the mechanical efficiency is 85%. [50 Marks] Po 7n = 90%arrow_forwardAt its optimum point of caines. operation, a given centrifugal pump with an impeller diameter of 50 cm delivers 3.2 m³/s of water at a 2 head of 25 m when rotating at 1450 rpm and power of 955 kW. If a homologous pump with an impeller diameter of 80 cm rotates at 1200 rpm, what would be the discharge, head, shaft break power and P H₂arrow_forward(read image)arrow_forward
- Hi, can you please assist with the attached question please. Please do not use Ai software. Many thanks.arrow_forwarddetermine the allowable bending and contact stresses for a grade 1 steel through-hardened to 250 HB. Assume the desired reliability is 50% and that the pinion and gear have the same hardness and the gear encounters hydrodynamic lubrication and is to last ten million cyclesarrow_forwardUsing the four-point bending tool, detail the influence of both applied load and notch size on the transverse strain. Cover the following points in your answer. a. A detailed description of the methodology you have used to create a set of results suitable to answer this question. Include details on the placement of line scans, the loads used, etc. (there is no need to describe the process of extracting the data from the interactive or the fundamental principles behind DIC). (5 marks) b. A description of the results you have found, including a written description, images, and both vertical and horizontal line scans from the four-point bending tool. Include a minimum of three loads and three notch sizes in your results. (20 marks) c. The conclusions you can make regarding the influence of load and notch size on the strain experienced by the beam based on the data you collect. (5 marks) To achieve full marks, you will need to include the following in your work: • properly labelled graphs…arrow_forward
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