Seven hundred gallons per minute of water are being discharged by a centrifugal pump 5 ft above the pump inlet. The inlet pressure is 4-in Hg above the atmospheric and the discharge pressure is 29 psia. If the pump has an 8-in diameter inlet and a 4-in diameter discharge, find the pump efficiency. Assume the pump input is 8Hp. A. 55% B. 64% C. 73% D. 84%

Q: b. Explain steady state energy equation based on centrifugal pumps. How the losses affect the…

A: STEADY STATE EQUATION BASED ON CENTIFUGAL PUMP :- mh1+v122+gz1=mh2+v222+gz2+Wwhere, m: mass flowh1:…

Q: If number of vanes on turbine is more than required, it will the work produced by the turbine. O…

A: 1.If number of vanes on turbine is morethan required, it will ..................... the work…

Q: An impeller of a centrifugal pump runs at 90 rpm under a net head of 10 m and has vanes inclined at…

A: We have provided data from the question are, From the figure we have, N=-90 rpm,ϕ==180-120=60,…

Q: 15. A pump delivering water at a rate of 100,000 GPM. The maximum available NPSH is 50 ft. Find the…

A: The maximum speed to avoid cavitation is 476 RPM.

Q: The suction diameter of 60 mm reads 2 psi vaccum and 50 mm diameter discharge with 250 kpag. The…

A: Answer: The horse-power needed to pump the water is 8.15 hp.

Q: A centrifugal pump has NPSH required of 25 ft. The water temperature is 90 deg. Fahrenheit and the…

A:

Q: A 6-STAGE CENTRIFUGAL PUMP DISCHARGER 1200 GPM OF WATER AT 1500 RPM WITH PRESSURE DROP OF 600 PSI.…

A: P=600psi Q=1200gpm

Q: Water is pumped to a height with a total head of 39.36 meters. The available power is 60 cycles, 220…

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Q: a plant installed a single-suction center fugal pump with a capacity of 300 gpm under 200 tt at 1200…

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Q: A fan can deliver a total pressure of 117 mm of water gage. The boiler requirement is 45,509 m^3/hr…

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Q: The power output is 30 Hp to a centrifugal pump that is discharging 900 gpm and which operates at…

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Q: boiler feed pump water at 90 C and enthalpy of 376.92 kJ/kg. It operates against a head of 9.5 m…

A: Given: h1 = 376.92 kJ/kg H = 9.5 m eff =  0.7

Q: FIND THE PERCENT SLIP OF A RECIPROCATING PUMP IF THE VOLUMETRIC EFFICIENCY IS 96%.

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Q: A centrifugal pump delivers 227 m3/hr of water from a source 4 meters below the pump center line to…

A: Given Data density of water, 1000 Kg/m3 Water head from suction to pump entire line =4 Water head…

Q: station, there is a centrifugal pump. The pump delivers a flow rate of 0.003 m3/s. The pump radius…

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Q: A centrifugal pump receives 75,000 lb. per hour of 90 °F water when the pump centerline is 9 ft.…

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Q: 4. A pump has a displacement volume of 6in³. It delivers 24gpm at 1000rpm and 1000psi. If the prime…

A:

Q: In a reciprocating pump having a mechanical efficiency of 80% delivers water at the rate of 80kg/s…

A: Given data:n=80% =0.80m ˙=80kg/s    so, Qvolume flow rate=m˙∫∫water=1000kg/m3   so,Q˙=801000m3/shead…

Q: A centrifugal pump running at 1200 r.p.m. delivers water. The diameter of the impeller at the inlet…

A: By referring the given diagram we have, N=1200 r.p.m ; D1=100 mm=0.1 m,D2=300 mm=0.3 m,B1=50 mm=0.5…

Q: A 4-stage centrifugal pump discharges 1000 gpm of water at 1750 1pm with a total heat head of 1000…

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Q: Compute the water horsepower and electrical power needed for the pump and motor with the following…

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Q: The guide vanes angles of a Francis water turbine make 20° with the tangent at entry. The runner…

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Q: A 6 stage centrifugal pump discharges 1200gpm of water at 1500 rpm with pressure drop of 600 psi.…

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Q: A power house has 5 impulse turbines. Each turbine has two runners. Each runner is installed with 4…

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Q: A centrifugal pump delivers 227 m/hr of water from a source 4 meters below the pump centre line to a…

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Q: What size pump is needed to supply 10 gpm to a cylinder when the electric motor is rotating at 1725…

A: Given : V = 10gpm = 10 gallon per minute N = 1725 rpm = 1725 rev per minute

Q: A double suction, single stage, centrifugal pump delivers 950m /hr of sea water (SG=1.03) from a…

A:

Q: 18. A centrifugal pump has, to work against a head of 25 metres at a speed of 850 rpm.. The flow…

A: Given data: Head against which pump is working, Hm=25 m. Speed of the rotor, N=850 rpm. Flow…

Q: A Kaplan turbine runner has a diameter of 5 m, and the turbine/generator assembly has an efficiency…

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Q: A pelton wheel is supplied with water under a head of 100 m at the rate 1000 litres/s. The bucket…

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Q: A Pelton wheel develops 1800 kW under a head of 120 while running at 210 rpm and discharging of 2.5…

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Q: A centrifugal pump has NPSH required of 21 ft. The water temperature is 90oF and the friction loss…

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Q: A centrifugal pump driven by a directly coupled 3kW motor of 1450 rpm speed, is proposed to be…

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Q: 1. What volume in ft cubed of water can be pumped to a 40 m height in one hour by 7hp pump? Assume…

A: Write the given data with suitable variables. H=40 m=131.2 ft3.28 ft1 mP=7 hpη=85 %

Q: An inward flow turbine is supplied with 245L of water per second and works under a total head of…

A: Given: Head=30m Q= 245 L /sec Outlet Diameter = 28 cm

Q: 2. A fuel pump is delivering 10 gallons per minute of oil with a specific gravity of 0.83. The total…

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Q: A pump discharge at 60 ft at 1400 rpm. Pump is at 75% efficiency. What will be discharge at 1000 rpm

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Q: An impulse turbine has a diameter of 60 in., speed of 350 rpm, bucket angle of 160 degrees,…

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Q: In centrifugal pump if we know the value of actual discharge is 250 l/sec , then find the value of…

A: Given, Actual discharge, Q=250L/s To calculate :- head(H) Now we know that Q=AvQ=Cd π4d2 vv=2gHand…

Q: A 10-hp pump (installed a the ground level) draws water from a well 30 ft below ground level and…

A: Given question belongs to the subject Fluid Mechanics and from the topic Flow through pipes.

Q: A pump takes water at 60°F from a large reservoir and delivers it to the bottom of an open elevated…

A: Given data as per question Pipe inside diameter =3 in Flow rate =150 gal/min  The overall efficiency…

Q: nozzle efficiency of a Pelton turbine is 90%. Find the velocity of water at the zle exit if the head…

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Q: A Pelton wheel develops 12,900kW at 425rpm under a head of 505m. The efficiency of the  machine is…

A: P=ηρgQH12900000=0.84 X 1000 X 9.81 XQ X 505Q=3.0999m3/s.................ans(1)

Q: A fuel pump is delivering 60 gal/min of oil with a specific gravity of 0.75. The total head is 45…

A: Given Data: Total head, h=45 m Delivery rate, Q=60 gal/min

Q: What is the general energy equation for a pump?

A: intro; pump are used for delivering pressure from lower pressure to higher pressure. it is used for…

Q: A forced draft fan is used to provide the combustion air requirements for a boiler that burns coal…

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Q: A centrifugal pump with 2.3 diameter impeller running at 327 rpm delivers 7.9 m3/s of water. The…

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Q: A three lobe rotary pump moves 0.0825 gal of a coal slurry in each lobe volume. The volume flow rate…

A: We are restricted to solve one question at a time. Please ask other questions in the next post.…

Forms of Energy

Energy is described as the capability to accomplish a task, like the ability to push a block by applying force on it. It is a quantitative property that is used to accomplish work on an object.