The power developed by the pump is 30kw. What is the percent decrease in power if speed will decrease by 40%. ANSWER: 78.4%

Q: A turbine running at 400 rpm has a specific speed of 160 rpm and head available is 41 m. If the…

A: GivenN=400rpmNS=160rpmH=41mP=200kW

Q: find the pump power requirement too

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Q: A pump has a displacement of 65 cm³/rev and is driven by a 37.3 kW electric motor at 1775 rpm. If…

A:

Q: The vacuum at the steam inlet to a condenser was found to be 716 mm of Hg and the temperature of…

A: The vacuum efficiency is ηvacuum = 99.7%.

Q: pump draws water at a head of 11Om and a discharge rate of 550 Ips. Determine the water power output…

A: Given Data H=110 m Q=550 LPs Pump efficiency=0.7

Q: R-134a liquid at 0.9 MPa and 26C is throttled at 0.2 MPa through an expansion valve. What is the…

A: Given that , P1=0.9MPaT1=26°CP2=0.2MPa

Q: A boiler feed pump operates at 40oC suction. If pump efficiency is 85% and needs 20 kW power of…

A:

Q: If the wind velocity is: 1 m/s, 2m/s, 3m/s, 5m/s 7m/s turbine will be:

A:

Q: A 4in3 hydraulic motor has a mechanical efficiency of .91 and a volumetric efficiency of .83. It…

A: Given: The volume of the hydraulic motor, V = 4 in^3 The mechanical efficiency of the motor, ηm =…

Q: A fluid undergoes a non-flow frictionless process. Work is -156.2kJ. if V1=0.845m3 and the pressure…

A:

Q: Compute the power generated by a hydro power plant with 1,980 hr/s flow rate of water and if the…

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Q: A pump deliver 249 gpm of water at ahead 165m. Determine the pump power in kW

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Q: ad of 18m. The o = required if the t-

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Q: Q3: Two tank are connected with piping system as shown. If the pump chara given by: hp- 31-120000…

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Q: The higher temperature of a refrigerating system operating at a Reverse Carnot Cycle is 240 °F and…

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Q: If heat rate is 12x10° kJ/kWh, then efficiency in percentage will be equal to

A:

Q: A water pump generates a maximum pressure of 89000 Pa with a speed of 5 m/ s, does this water pump…

A: Given:-  ∆P = 89000 Pa V1 = V= 5 m/s V2 = 0 m/s Z1 = 0 m Z2 = h m  To Find :-  Maximum height

Q: discuss in great detail the different pump curves including supply curve, system curve and…

A:

Q: A 150 MW steam station uses coal of calorific value 5600 kcal/kg and coal consumption /hour is 34569…

A: Given data: The energy produced by the station is energy output (E) = 150 MW = 150 MJ/s = (150 x…

Q: 30m T -2 75cmØ

A: Given data: The diameter value is, d=75 cm=75 cm×1 m100 cm=0.75 m. The power developed by the…

Q: A hydraulic vane pump running at 1800 rpm develops 2 L/s flow at 750 kPa. Volumetric efficiency is…

A: Given         Flow rate, Q = 2 L/s              Speed, N = 1800 rpm Overall efficiency = 0.8  Find…

Q: .What is the work?

A: Determine Required Pump Work

Q: A pump has a displacement of 95 cm³/rev, rotates at 1160 rpm, and produces an outlet pressure of…

A:

Q: What is the water horsepower?

A: Given data, the flow rate of the pump Q = 91 Gpmthe pump head of the water column H = 121 ftPump…

Q: The vacuum at the steam inlet to a condenser was found to be 716 mm of Hg and the temperature of…

A:

Q: Air compressor takes air of mass flow rate (9kg/min) at (100kPa) and (300K). Air leaves the…

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Q: Water is pumped from a pump where the pressure is atmospheric to a height of 3 cm, water temperature…

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Q: 2. A hydroelectric plant has 20 MW generator with an efficiency of 96%. The generator is coupled to…

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Q: Mass flow rate of R134a. Mass flow rate of chilled supply water and Volumetric flow rate entering…

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Q: 8. A wind turbine receives air at 50kph and receives energy from it then the flowmeter behind it…

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Q: 2. You bought diesel fuel on a cold rainy dawn to be sold for retail. During that time the…

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Q: A Pelton wheel develops 70 kW under a head of 60 m of water. It rotates 400 rpm. Overall efficiency…

A:

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.