An air lift pump is used for raising 0.8 L/s of a liquid of density 1200 kg/m3 to a height of 20 meters air is available at 450kN/m2 the efficiency of the pump is 30% assume isentropic compression of air at 1.4. What would be the power requirement?

An air lift pump is used for raising 0.8 L/s of a liquid of density 1200 kg/m3 to a height of 20 meters air is available at 450kN/m2 the efficiency of the pump is 30% assume isentropic compression of air at 1.4. What would be the power requirement?

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter40: Typical Operating Conditions

Section: Chapter Questions

Problem 10RQ: The seasonal energy efficiency ratio (SEER) includes the energy used in the _____and _____cycles.

See similar textbooks

Related questions

Q: Csider a turbojet powered airplane flying at a standard altitude of 9144 m at a veloc- 84.67 kmph.…

A: Turbojet thrust formula T = m. (Ve-Va) + Ae(pe-pa) Ve: exit velocity Va: inlet velocity pe: exit…

Q: The discharge pressure of an air compressor is 6 times the suction pressure. If the volume flow at…

Q: The air mass flow rate in a compressor is 2 kg/s. The rotational speed is 10,000 rpm, with the inlet…

A: Given DataN=10000rpmm=2kg/sT=293KP=1.05kPaZ=21

Q: 10 kg/s of steam (H2O) enters a turbine at 10 m/s and a specific enthalpy of 3500 kJ/kg and leaves…

A: Given data mass flow rate = m˙ = 10 kg/sv1 = 10 m/s h1 = 3500 kJ/kgz1 = 0z2 = -10 mh2 = 2500 kJ/kgv2…

Q: Consider one stage of an impulse turbine consisting of a converging nozzle and one ring of moving…

Q: A stationary diesel engine with a thermal efficiency of 40% produces 200 horsepower. The exhaust…

A: NOTE:- There is a slight error in the question. Instead of velocity, temperature should be written…

Q: A fluid enters with a steady flow of 3.7 kg/s and an initial pressure of 690 kPa, an initial density…

A: The above given can be solved by using the steady flow energy equation as shown below:

Q: Question. A boiler unit has forced draught fan maintaining draught of 90 mm of water column while…

A: Data given- V• = 38 m3 /s A = 1.9 m2 Ta = 300 K Tga = 450 K η = 0.80

Q: Exercise 1 Find the amount of energy produced by the V126 3,3 MW turbine for (p = 1,225 ), average…

A: Write the specification of the V125 3.3 MW turbine. Write the value of the velocity of the IIIa…

Q: A hydraulic turbine receives water from a reservoir at an elevation of 100 m above it. What is the…

A: Given data h = 100 m ( h = Elevation ) P = 50 MW = 50 x 10^6 W g = 9.81 m/s^2 ρ = 1000 kg/m3…

Q: ft3 min A two-stage compressor receives air at 100 at 10psia and the discharge pressure is 200 psia.…

Q: 6.17 : A centrifugal compressor running at 2000 rpm receives air at 17C and if the outer diameter of…

A: Given: velocity = 2000 rpm diameter = 750 mm Cp = 1 kJ/kgK = 1000 J/kgK Answer: 23.16 deg C

Q: Water density = 1000 kg/m³ 3 %3D It is pumped from = 65 KPa to 2 MPa Isentropic efficiency = 0.80…

A: Givenρ=1000kg/m3P1=65kPaP2=2MPa=2000KPaη=0.8

Q: In a chimney draught, the draught | Q4. produced is 19 mm of water when the gas temperature is 290°C…

A: The answer is given below steps

Q: A fan delivers 8.2 m3/s of air at static pressure 250 kPa when the speed of fan is 256 rpm and…

A: Q1 = 8.2 m3/s P1 = 250 kpa N1 = 256 rpm H1 = 34 kW N2 300 rpm

Q: A blower handles 2 kg/s of air at 25°C and consumes a power of 20 kW. The inlet and outlet…

A: This problem involves the first law for steady-state flow. The blower can be considered as the…

Q: The centrifugal compressor of a gas turbine receives air at 1bar and 300K. At the discharge of…

Q: The suction condition of an air compressor is 104 kPa, 28 deg.C, and 6.81 m^3/s. If the surrounding…

Q: A 30hp pump delivers 475gpm of gasoline (y=42.5lb/ft3) at 20C with 78% efficiency. What pressure…

Q: 1. A pump delivers gasoline (SG = 0.74) at 20°C and 12 m/h. At the inlet pa= 100 kPa, z =1 m, and V…

Q: 2. A hydraulic turbine receives water from a reservoir at an elevation of 100 m above it. What is…

A: Given: H=100 mP=50 MW=50×106J/s

Q: Combustion gases flow into a gas turbine stage at a rate of 1.4 kg/s. Ar the inlet, the static…

A: Given:-m=1.4kg/sAt inlet:T=950 KP=550 kPaV=180m/sAt outlet:P=250 kPaV=75m/sP=250 kWTo…

Q: A steam turbine developed 2372.20 hp when its inlet condition is 1300 BTU/lb enthalpy and 400 ft/s…

A: v22+hinlet=v22+houtlet + workmass flow rate

Q: A fluid enters with a steady flow of 3.7 kg/s and an initial pressure of 690 kPa, an initial density…

A: m˙= 3.7 kg/s Inlet conditions: P1= 690 kPaρ1= 3.2 kg/m3V1= 60 m/su1= 2000 kJ/kg Outlet conditions:…

Q: The discharge pressure of an air compressor is 5 times the suction pressure. If the volume flow at…

Q: For R-22 Find the capacity of the compressor if the suction line mentioned , p=1.2 bar ,Mass flow…

A: Refrigerant=R22Suction line pressure, Pe=1.2 barMass flow rate of refrigerant, m˙ref=0.3…

Q: A centrifugal compressor delivers air at 50 kg at a pressure of 2 bar and 97°C. The intake pressure…

Q: 2. An air compressor is to compress 510m³/hr from 100kpa to 10bar, for an ideal compression with…

A: Answer: % Saving in Power due to two staging = 13.208 %.

Q: A turbine extracts water from a 25 m high reservoir, if the flow requirement is 10000 m3/hr, what is…

Q: Ans. 3908 m’/min. 14.5 Find the cylinder dimensions of a single-cylinder, double-acting compressor…

A: Answer: The dimensions of the cylinder are: D = L = 27.865 cm.

Q: The rotational speed of an impulse turbine is 3000 rpm and the mean diameter of the rotor is 90 cm.…

Q: A 6cm inlet valve and a 3cm exhaust valve in a turbocharged engine, assume both valves have a…

A: Given, The diameter of the inlet valve, D=6 cm=6×10-2 m The coefficient of discharge, cd=0.7 Lift,…

Q: A air Compressor lequires a power input Of1400 kW andk It operates adialatically. The air is…

A: Given Data The power input of the compressor is:P=1400 kW The intial temperature is:T1=300K The…

Q: A centrifugal compressor with backward bent blades (B = 75°) handles 20 kg/s of air, where the air…

Q: A pump delivers 4 ?3/??? of water from 110 kPa to 350 kPa. Both pipes’ gages are on the same level.…

A: Given DataP1=110kPaP2=350kPaD1=16cm=16×10-2mD2=13cm=13×10-2mρ=997kg/m3Flow Rate…

Q: At the best efficiency point with the experiments on the A turbine DA= 72 cm, Ha= 20 m, Va = 50 m/s,…

Q: 3. An air compressor is to compress 8.6m2/min from 98.6kpa to 9860kpa. Assuming conditions ideal,…

Q: A hydro-electric plant discharge water at the rate of 0.75 m3/s and enters the turbine at 0.35 mps…

Q: 5. Water from a reservoir A 10 m elevation is drawn by a motor driven pump to an upper reservoir B…

Q: From 400 kPa abs and 0.8 m3, air is being compressed isentropically to 0.5 m3. Find the change of…

Q: twin-cylinder, double-acting,compressor with a clearance of 5% draws in oxygen at 450 kpa,17c and…

Q: 26. A tank containing air is pressurized to 1.7 MPa and 30 C. A valve is now opened to discharge air…

A: Given data, Air pressure inside the tank, P = 1700 kPa Air temperature inside the tank, T = 30 °C…

Q: A centrifugal compressor handles 300 CFM of air at 14.7 psia and 80 degree F. The air is compressed…

Q: R-134a is throttled in a line flowing at 25°C, 750 kPa with negligible kinetic energy to a pressure…

A: Given: Inlet temperature T1=25°C or 298KInlet pressure P1=750kPaOutlet pressure P2=165kPa

Q: A 20 × 25 cm reciprocating compressor has a 4% clearance and operates at 550 rpm. The compressor…

Q: Q3/ The horizontal pump in Fig. below discharges 20°C water at 57 m/h. Neglecting losses, what power…

A: Discharge = 57 m3/h inlet pressure = 120 kpa outlet pressure = 400 kpa Inlet pie diameter = 9cm…

Q: The power output of a steam turbine is 5 MW. The inlet conditions are 2 MPa of pressure, 400 degrees…

Q: Q4) The nozzles receive steam at 1.75 MPa, 300 °C, and exit pressure of steam is 1.05 MPa. If there…

Q: If QL = 144,000 Btu/hr, find the COP, the mass flow rate m, the work in Win, the compressor…

Question

What would be the power requirement?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

The seasonal energy efficiency ratio (SEER) includes the energy used in the _____and _____cycles.
A centrifugal compressor with backward bent blades (B = 75°) handles 20 kg/s of air, where the air ambient pressure is 100 kPa and T = 20 °C. Air enters the compressor rotor in the axial direction. The rotor diameter is 0.80 m, and the compressor rotates at 9000 rpm. Exit blade channel is 80 mm in width. Assuming an 80% efficiency, Use cp = 1.005 kJ/kg. K, R =287 kJ/kg.K and k = 1.40 for air find: 1.velocity at exit, power and torque 2.exit pressure and temperature ( assume a perfect diffuser) 3.
can you please solve this for me, thanks. 10 kg/s of steam (H2O) enters a turbine at 10 m/s and a specific enthalpy of 3500 kJ/kg and leaves at an outlet 10m below the inlet with a specific enthalpy of 2500 kJ/kg and a velocity of 20 m/s. Assume steady-state steady-flow. If the heat lost from the turbine is 20% that of the turbine work, determine a.) the turbine horsepower. If the turbine is coupled to a generator with a 90% electrical efficiency, and the turbine horsepower has an 80% mechanical efficiency, b.) how much income will a power plant generate in one year if the electrical energy is sold at PhP 3.51 per kW-hr? (Hint: Mechanical efficiency = actual turbine work / ideal turbine work. Electrical efficiency of a generator = electrical output / actual turbine work.)
A water pump compresses water at m ̇=1 kg/s flow rate, P1= 5 MPa and T1= 20 oC to P2= 10 MPa and T2= 40 oC. In the meantime, calculate the power consumed by the pump (kW), since there is a heat transfer of 25000 W from the environment to the pump.
At the inlet of a steady-flow steam turbine, the water vapor velocity is 55 m / s, the temperature is 600 ° C and pressure is 4 MPa, at its out; speed is 190 m /s,pressure is 15 kPa and its dryness is 92 percent. Meanwhile, heat transfer of 1800 kj / minute from the environment to the turbine is realized. Water Steam turbine power is 5 MW. Neglecting the potential energy change; a)Find the mass flow of water vapor. b)Find the inlet cross section of the turbine.
Show solution An air compressor has a suction volume of 0.3m^3/s at 28℃ & 1 atm and discharges to 650 kPa. How much power (in kW) is saved by the compressor if two staging?
A 20 × 25 cm reciprocating compressor has a 4% clearance and operates at 550 rpm. The compressor receives air at 100 kPaa and 27°C, and discharges at 1850 kPaa. The compression and expansion are polytropic with n = 1.3. Find the volume flow rate of air drawn in the compressor m3/s.
A 30hp pump delivers 475gpm of gasoline (y=42.5lb/ft3) at 20C with 78% efficiency. What pressure rise result across the pump? ANSWER: 84.5psi
Provide complete solution and detailed diagram. A steam turbine has an inlet enthalpy of 2700 KJ/kg and speed of 120 m/s. If exhaustenthalpy is 2500 KJ/kg, find the exit speed. A. 763.45 m/s B. 342 m/s C. 934 m/s D. 644 m/s
A centrifugal pump operating under steady flow conditions delivers 2275 kg/min of water from aninitial pressure of 82730 Pa to a final pressure of 275850 Pa. The diameter of the inlet pipe to thepump is 15.45 cm and the diameter of the discharge pipe is 10.18cm. What is the work in kW?
b. The discharge pressure of an air compressor is 6 times the suction pressure. If the volumeflow rate at the suction is 0.86 cubic meters per second, what is the compressor power (kW)for n = 1.38 and suction pressure is 101 kPaa?
A group of engineers is designing a new hydroturbine by scaling up an existing one. The existing turbine (turbine A) has diameter DA = 1.50 m, and spins at n.A = 150 rpm. At its best efficiency point, V.A = 162 m3 /s, HA = 90.0 m of water, and bhpA = 132 MW. The new turbine (turbine B) will spin at 120 rpm, and its net head will be HB = 110 m. Calculate and compare the efficiency of the two turbines. They should be the same since we are assuming dynamic similarity. However, the larger turbine will actually be slightly more efficient than the smaller turbine. Use the Moody efficiency correction equation to predict the actual expected efficiency of the new turbine. Discuss.