90 dm diameter pipe, and a pressure of 200 kPamaintained at the summit, where the pipe is 90 m above3.0 J/N between the reservoir and the summit. If thepump is 90% efficient, what is the input powethe reservoir. The flow is 1.40 m'/s with a head loss ofWater from a reservoir is pumped over a hill thro4.furnished to the water?

Answered: maintained at the summit, where the…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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A centrifugal pump has r2 = 22.5 cm, b2 = 5 cm, and B2= 35° and rotates at 1060 r/min. If it generates a head of 54.5 m, determine the theoretical (a) flow rate and (b) brake horsepower. Assume near-radial entry flow.
Three reservoirs A, B and C at water levels of 25 m, 12 m and 8 m are connected by a pipe network. 1200 m length pipe of diameter 0.5 m and f = 0.013 draws water from A. 1000 m length pipe of diameter 0.4 m and f = 0.015 draws water from B and joins the pipe end from A. The reservoir C is connected to this junction by 900 m length of pipe 0.6 m diameter with f = 0.011 What would be the direction of flow? * O Reservoir A feeds reservoirs B and C. Reservoir C feeds reservoirs A and B. Reservoir B and C feed reservoir A. O Reservoir A and B feed reservoir C. If the flow in the 900m pipe is 0.60 m^3/s, what would be the flow in the * 1000m pipe? O 0.042 O 0.064 O 0.129 O 0.091
2. Water is pumped from a lower reservoir using a 75 kW pump. If the height of water at the higher reservoir is 120m. And the flow rate of the pump is 0.03 m^3/s, what are the head losses of the system? 0.03 m's 120m 75kW Pump
I need the answer as soon as possible
WHAT IS THE MINIMUM DIAMETER OF THE PIPE TO MEET THESE REQUIREMENTS? NEGLECT THE LENGTH OF THE PIPE FOM THE LOWER RESERVOIR TO PUMP.
1. Water is following steadily through a 50 m long section of a horizontal 5-cm diameter stainless steel pipe. The water temperature is 15°C and the flow rate is 9 L/s. Determine: a.) The pressure drop over the pipe length [kPa]. b.) The head loss [m]. c.) The pumping power needed to overcome the pressure drop (assume a pump efficiency of 67%) [kW]. 9 L/s 5 cm 50 m
3. Water is supplied to a town through a gravity main, 0.6m in diameter and 50 km long, across an undulating ground from the headworks to the service reservoir in the town. The pipe off-take at the headworks is at a reduced level (RL) +480 m and the maximum water level of the reservoir is at RL +380 m. The lowest ground level of the mains is at RL +280 m at a point 25 km from the take-off. It is desired to increase the current supply to the town by 30%. Determine the distance you would lay a duplicate pipe of the same diameter. State all assumptions made.
Reservoirs A, B, and C are connected by pipelines 1, 2, and 3 respectively which meets at the junction D. Reservoir A is at elevation 80 m, reservoir B is at elevation 50 m, and reservoir C is at elevation 10 m. Diameter Length Friction Factor 400 mm 500 mm Pipe 1800 m 2000 m 1 0.02 2 0.025 3 800 mm 4000 m 0.03 a. Compute the discharge flowing out of reservoir A. b. Determine the discharge flowing in or out at reservoir B. c. Find the discharge flowing towards reservoir C.
Water at 15°C is to be discharged from a reservoir at a rate of 18 L/s using two horizontal cast iron pipes connected in series and a pump between them. The first pipe is 20 m long and has a 6-cm diameter, while the second pipe is 35 m long and has a 3-cm diameter. The water level in the reservoir is 30 m above the centerline of the pipe. The pipe entrance is sharp-edged, and losses associated with the connection of the pump are negligible. Neglecting the effect of the kinetic energy correction factor, determine the required pumping head and the minimum pumping power to maintain the indicated flow rate. The density and dynamic viscosity of water at 15°C are p = 999.1 kg/m³ and μ = 1.138 × 10-3 kg/m-s. The loss coefficient is KL = 0.5 for a sharp-edged entrance. The roughness of cast iron pipes is & = 0.00026 m. Water tank 30 m 20 m Pump 6 cm 3 cm L The required pumping head is m. The minimum pumping power to maintain the indicated flow rate is KW.
Water is drawn from an intake tower in Lake Ontario through a 3-km long precast reinforced concrete pipeline (Hazen-William’s C = 120) and delivered to the wet well of a low lift pumping station on shore which in turn supplies a water treatment plant. The pumping station is sized to deliver and will be operating at the maximum day flow rate of 2.65 m3/s. (a) If the design water elevation in the wet well is 70 m when the lake level is 74 m above MSL, determine the most economical pipe size for the intake (neglect local losses). (b) Compare the entrance and exit losses to the pipe friction losses to justify the assumption in (a). The entrance and exit loss coefficients can be assumed to be 1. (c) Sketch the hydraulic and energy grade lines. (d) Explain what would happen if the intake pipeline’s capacity was reduced but the pumping station is still operating at the same flow rate.
Water flows through a concrete pipe 3 ft in diameter between reservoir A and reservoir B. The surface of reservoir A is at 800 ft while the surface of reservoir B is at 300 ft elevation. The length of the pipe is 1000 ft. Calculate: a. the head loss through the pipe b. the flow rate in the pipe
M - Problem 3: For these three reservoirs please assume that the elevations of the waterlines in reservoirs 1-3 are: h, 30 m, h₂-20 m, and h, 10 m. Also, please assume that the lengths of pipes 1-3 are L₁ 1000 m, L₂ 2000 m, and L3 = 3000 m; the diameters of all three pipes are D₁ D₂ D₂ = 2.0 m; and the friction coefficients of all three pipes are f f₂=fa=0.015. If you estimate that the total head at Junction "J" is H, = 22 m please: 1) calculate the resulting net volumetric flow rate into junction "J" and 2) determine if the actual total head at junction "J" is above or below H, = 22 m. h₂ Reservoir 1 h₂ 7 Reservoir 2 Pipe D Reservoir 3 ha Pipe 3 Pipe 2 a

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