Air flows steadily at the rate of 0.5 kg/s through an compressor, entering at 7 m/s speed, 100 kPa pressure and 0.95 m3/kg specific volume, and leaving at 5 m/s, 700 kPa, and 0.19 m3/kg. The internal energy of the air leaving is 90 kJ/kg greater than that of the air entering. Cooling water in the compressor jackets absorbs heat from the air at the rate of 58kW. Compute the compressor work in kW.

Q: (b) Air enters a 30 cm diameter pipe steadily at 200 kPa and 20°C with velocity of 300 meter in a…

A: According to the information we have a pipe of diameter 30 cm with a velocity of 300 m/min and…

Q: Steam is accelerated by a nozzle steadily from a low velocity to a velocity of 280 m/s at a rate of…

A: Given, V2 = 280 m/s mass flow rate (m)= 2.5 kg/s T2 = 400°C P2 = 2 MPa V1 = 0 m/s From steam…

Q: 4. Steam flows steadily through an adiabatic turbine. The inlet conditions of the steam are 4MPa,…

A: given data  P1= 4Mpa T1= 500°C V1= 80m/s P2= 30kPa x=0.92 V2= 50m/s mass flow rate = 12 kg/s find…

Q: In an air compressor, air flows steadily at the rate of 15kg/min. The air enters the compressor at…

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Q: Air is compressed from 95 kPa and 17°C to 722 kPa and 373°C. Assuming constant specific heats,…

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Q: 2.2 Air enters a nozzle steadily at 300kPa, 77°C, and 50m/s and leaves at 100kPa and 320m/s. The…

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Q: Air enters the compressor of a gas-turbine plant at ambient conditions of 100 kPa and 30°C with a…

A: Given Information:For air compressor

Q: Air enters the compressor of a gas-turbine plant at ambient conditions of 100 kPa and 25°C with a…

A: Given data: Here fluid being compressed is air.

Q: Air enters a compressor at ambient conditions of 100 kPa and 20°C at a rate of 6.2 m3 /s with a low…

A: Given Data: The inlet pressure is: P1= 100 kPa The pressure after compression is: P2=900 kPa The…

Q: Air enters an adiabatic nozzle at 45 psia and 940°F with low velocity and exits at 650 ft/s. If the…

A: Given data: *The pressure of the air at the inlet of the nozzle is P1=45 psia. *The temperature of…

Q: Steam enters a nozzle at 400°C and 800 kPa with a velocity of 10 m/s, and leaves at 300°C and 200…

A: Write the properties of steam at 800 kPa and 400°C. Write the properties of steam at 200 kPa and…

Q: Refrigerant-134a enters a compressor as a saturated vapor at 160 kPa at a rate of 0.03 m3/s and…

A: (a) The surrounding temperature is given as, The rate of change in entropy of the surrounding is…

Q: Air at 100 kPa and 280°K is compressed steadily to 600 kPa and 400°K. The mass flow rate of the air…

A: Given data,  Potential energy and kinetic energy is neglected.  P1= 100 KPa,  P2= 600 KPa  T1=280 K…

Q: Air at 15°C and 95 kPa enters the diffuser of a jet engine steadily with a velocity of 250 m/s. The…

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Q: Air enters a steady-flow compressor at 1 atm and 25° C at a rate of 0.35 m3/s and leaves at a rate…

A: Given, Pressure (P1) = 1 atm Temperatre (T1) =  25° C volumetric flow rate at entry (v̇1) = 0.35…

Q: Refrigerant R-134a at 400 kPa and 80 ⁰C enters an adiabatic diffuser steadily with a velocity of 600…

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Q: In a power plant, water vapor with a flow rate of 35 kg / s enters the adiabatic turbine at a…

A:

Q: 3. Water flows through a horizontal coil heated from the outside by high temperature flue gases, as…

A: hi=Enthalpies of the Inlet Water Streams=344.2 kJ/kg ho=Enthalpies of the Outlet Water…

Q: Air enters an adiabatic nozzle steadily at 300 Kpa, 200 °C and 30 m/s then leaves at 100 Kpa and 180…

A:

Q: Air enters an adiabatic nozzle steadily at 300 Kpa, 200 °C and 30 m's then leaves at 100 Kpa and 180…

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Q: 1) Helium is to be compressed from 150 kPa and 300 K to 800 kPa and 500 K. A heat loss of 20 kJ/kg…

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Q: Air enters a compressor at ambient conditions of 100 kPa and 20°C at a rate of 6.2 m3 /s with a low…

A: Mass flow rate for air can be determined by using ideal gas equation Work done on compressor in…

Q: Steam enters a nozzle at 400°C and 700 kPa with a velocity of 10 m/s, and leaves at 320°C and 150…

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Q: 3. Air enters the compressor of a gas-turbine plant at ambient conditions of 100 kPa and 25°C with a…

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Q: super heated steam enters an adiabatic gas turbine at 12 bar and 500 °C and leaves at 400 Kpa and…

A: To determine the required values in the above question, we must use two concepts:  1. Continuity…

Q: Consider that 1 kg of air has a 21.7 kJ decrease of internal energy while its temperature is reduced…

A:

Q: Air enters the compressor of a gas-turbine plant at ambient conditions of 100 kPa and 25°C with a…

A: Given data: Inlet temperature of air, T1 = 250C = 298 K Exit temperature of air, T2 = 3470C = 620 K…

Q: Air enters the compressor of a gas-turbine plant at ambient conditions of 100 kPa and 25 °C with a…

A:

Q: Air enters the compressor of a gas-turbine plant at ambient conditions of 100 kPa and 25°C with a…

A:

Q: Air enters an adiabatic nozzle steadily at 300 kPa, 200°C, and 45 m/s and leaves at 100 kPa and 180…

A:

Q: Air enters a 28-cm diameter pipe steadily at 200 kPa and 20°C with a velocity of 5 m/s. Air is…

A: Pipe diameter, d=28 cm=0.28 mAir inlet condition: P1=200 kPa, T1=20oC, V1=5 m/sAir exit condition:…

Q: Air enters the compressor of a gas-turbine plant at ambient conditions of 100 kPa and 25°C with a…

A: The initial conditionsP1=100KPaT1=25°C=298K°V1=0m/s since lgiun as low velocityh1=298.2 KJ/kgThe…

Q: Is it possible for the entropy change of a closed system to be zero during an irreversible process?…

A: No,it is not possible for the entropy change of a closed system to be zero during an irreverisible…

Q: Steam enters a turbine steadily at 7 MPa and 600°C with a velocity of 60 m/s and leaves at 25 kPa…

A: Given: Inlet conditions:P1=7 MPaT1=600°CV1=60 m/sA1=150 cm2Exit Conditions:P2=25 kPaQ=-20…

Q: Air enters the compressor of a gas-turbine plant at ambient conditions of 100 kPa and 25°C with a…

A:

Q: 20- Air enters a nozzle steadily at 280 kPa and 77°C with a velocity of 50 m/s and exits at 85 kPa…

A: Given:P1=280 kPaT1=77o C or 350 Kv1=50 m/sP2=85 kPav2=320 m/sQ=3.2 kJ/kg

Q: Q2/ Air enters an adiabatic nozzle steadily at 400 kPa, 290°C, and 35 m/s and leaves at 200 kPa and…

A: Given:P1=400 kPaT1=290°Cc1=35 m/sP2=200 kPac2=240 m/sA1=100 cm2R=0.287 KJ/Kg.KCp=1.005 KJ/Kg.K

Q: Steam flows steadily through an adiabatic turbine. The inlet conditions of the steam are 10 MPa,…

A:

Q: Steam flows steadily through an adiabatic turbine. The inlet conditions of the steam are 10 MPa,…

A:

Q: Air enters an adiabatic nozzle steadily at 300 kPa, 200°C, and 45 m/s and leaves at 100 kPa and 180…

A: a)  The mass flow rate                       m=ρV1=P1A1v1RT1=300×110×10-4×450.287×473=1.09 kgs b)…

Q: Steam flows steadily through an adiabatic turbine. The inlet conditions of the steam are 4 MPa,…

A: Given Data: The pressure at the inlet is, P1=4 MPa. The temperature at the inlet is, T1=500°C. The…

Q: Steam enters a nozzle at 400°C and 800 kPa with a velocity of 10 m/s, and leaves at 375°C and 400…

A: Solution:T1 = 400°C , P1 = 800 kPa   , V1 = 10 m/sT2 = 375°C , P2 = 400 kPa   , Q˙ = -25 kwA1 = 800…

Q: Air enters a 28-cm diameter pipe steadily at 200 kPa and 20°C with a velocity of 5 m/s. Air is…

A: Given data diameter = 28 cm=0.28 m Pipe steadily at 200 kPa Velocity = 5m/s

Q: Air flows steadily through an air compressor at a rate of 28 kg×min-1 with a velocity of 12 m×s-1 at…

A: Answer: (1) The rate of shaft work is -130.1112 kW. (2) The ratio of inlet pipe diameter to outlet…