The pump in the figure draws water from a reservoir. At point A on the suction pipe an open manometer shows a vacuum of 290 mm of mercury, while a pressure gage at B reads 16 m of water. The total head loss of the pipes is 0.27 m. When the measured flow is 40 liters/sec, the input horsepower to the pump is found to be 16.4 hp. Compute the efficiency of the pump. Dia. of pipe is 150 mm for both suction and discharge pipes.

The pump in the figure draws water from a reservoir. At point A on the suction pipe an open manometer shows a vacuum of 290 mm of mercury, while a pressure gage at B reads 16 m of water. The total head loss of the pipes is 0.27 m. When the measured flow is 40 liters/sec, the input horsepower to the pump is found to be 16.4 hp. Compute the efficiency of the pump. Dia. of pipe is 150 mm for both suction and discharge pipes.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Calculate the mechanical power [hp] required on the pump shaft considering the hydraulic system Shown. The pipe is made of commercial steel (roughness = 0.0002 ft) and has two different diameters, up to the pump inlet the pipe is 2 inches with a length of 100ft and from the pump outlet the pipe is 4 inches with 400ft. All elements are screwed The flow rate circulating through the system is 0.5 ft3/s and the efficiency of the pump is 85%. The density of water is 1.94 slug/ft3 and has a viscosity kinematics 1.1x10-5 ft2/s
A pump is to deliver 80 GPM of water at a density of 61. 83lb/ft cubed with a discharge pressure of 150 psig. Suction pressure indicates a 2 HG vacuum. The diameter of the suction and the discharge are 5 in. and 4 in. respectively. The pump has an efficiency of 70% while the motor efficiency is 80%. Determine the (a) water horsepower of the pump (b) bhp of pump motor (c) power input to drive the motor.
An 8 hp pump is installed near the reservoir container of oil having a s.g. Of 0.82. The rate of flow of the pipe is 0.014 ?3/s. The pressure at 1 and 2 are -28 kPa and 290 kPa respectively. a. Compute the head added by the pump in meters.b. Compute the output hp of the pump.c. Compute the efficiency of the pump
Q5: As shown in figure (5). What is the water horsepower of the pump? The pipes characteristics are as follows. Pipe 1 2 3 EL.0.0m D (mm) 200 300 250 L (m) 900 300 1500 0.135 m²/sec f 0.023 0.018 0.02 EL 120m EL.30m
Point A in the suction pipe is 1 m below the pump. It is mounted with anopen manometer which reads a vacuum of 20 cm of mercury. The pipe is10 cm in diameter and the flow is 35 liters/s of water. Compute the totalenergy at point A with respect to a datum through the pump.
Water flows through a 300mm diameter pipe at a velocity Of 3.00 m/s. Determine the weight flow rate in N/s. Do not write the unit. You will only jnput the numerical answer in the space provided. Unit of the Correct Answer: N/s O 9810.000 O 2,080.284 O 8829.000 1202.284
Installed is a venturi meter on a pipe 30 cm diameter in which the maximum flow is 2.7 cum of water in one minute. The throat is 15 cm in diameter. Compute the theoretical discharge that would be passing through the meter when the differetial manometer is as shown. Calculate also the discharge coefficient, C.
Reservoir B in the figure receives 0.06 m³/s of flow. Determine the flow in line DC. Do not write the unit. You will only input the numerical answer in the space provided. Unit of the Correct Answer: m2/s Decimal Places required in the final answer: 3 El 100m A B 1500 m, 450 mm, f= 0.0225 El 82m 500 m, 250 mm f= 0.0178 D 750 m, 300 mm, f 0.0168
A pump draws water at 20 liters per second from reservoir A and lifts it to reservoir B, as shown in Figure FM-P-113. The head loss from A to 1 is three times the velocity head in the 150-mm diameter pipe, and the head loss from 2 to B is fifteen times the velocity head in the 100-mm diameter pipe. Choices are in the images Determine: Power delivered by the pump in kW Pressure head at point 1 in m. Pressure head at point 2 inm.
The pump whose characteristics are: H, = 80 – 600V²2 %3D n = -1500V² + 700V Elevation = 230 m |(2) (1) Elevation = 200 m 1000 m pipe 40 cm in diameter Pump Figure Q3 is used to pump water (µ=0.001kg/ms) a distance of 1000 m between two reservoirs the elevations of which are shown in Figure Q3 and remain constant. The pipe is 40 cm diameter commercial steel (ɛ=0.046 mm). Ignoring minor losses and assuming fully turbulent flow. Determine d) The volumetric flow rate e) The efficiency at the operating point
Determine the flow distribution of water in the system shown in Figure below. Assume constant friction factors, with f= 0.03. The head-discharge for the pump is Hp = 70 m el 50 m Pipe L (m) D (mm) ΣΚ el 48 m 1 100 750 850 350 200 200 [2] [4] 3 el 0m [5] 4 500 200 350 250 [1] [3]
2. A pump discharge 126 of brine (sp.gr.=1.20). The pump inlet, 304.8 mm in diameter is at the same level as the outlet, 203.2 mm in diameter. At the inlet, the vacuum is 152.4 mm of mercury. The center of the pressure gauge connected to the pump discharge flange is 122 cm. The gauge reads 138 KPag. For a pump efficiency of 83%, what is the power output of the motor? 122 cm. PUMP