and 25oC with a velocity of 30 m/s and exits at 1.8 MPa and 400oC. The compressor

Q: How does useful work differ from actual work? For what kinds of systems are these two identical?

A: In thermodynamics the useful work is calculated as : Thus, we can say that when the if the…

Q: A piston–cylinder device initially contains 1.4 kg of refrigerant-134a at 100 kPa and 20°C. Heat is…

A: Given data

Q: An air compressor compresses 6 L of air at 120 kPa and 20°C to 1000 kPa and 400°C. Determine the…

A: Given data: *The volume of the air compressed by the air is V=6 L. *The initial pressure of the air…

Q: An adiabatic air compressor is to be powered by a direct-coupled adiabatic steam turbine that is…

A: Given Data:

Q: 3. Steam enters an adiabatic turbine at 4MPA and 350°C and expands to 75 kPa with an isentropic…

A:

Q: Liquid water at 120 kPa enters a 7-kW pump where its pressure is raised to 5 MPa. If the elevation…

A:

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: 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 at 100 kPa and -24°C with a flow rate of 1.35 m/min and leaves…

A:

Q: The pressure of water is increased from 100 kPa to 900 kPa by a pump. The temperature of water also…

A: Given data as per question Initial pressure = 100 kpa Final pressure = 900 kpa Increase in pressure…

Q: Air enters the duct of an air-conditioning system at 15 psia and 50°F at a volume flow rate of 450…

A: Given: The inlet pressure of the air in the duct is P1=15 psia. The inlet temperature of the air in…

Q: In a steady flow system, 50 kJ of work is done per kg of fluid, the values of specific volume…

A: We have, Wsf=50 kJ/kg The given inlet conditions are, V1=0.4 m3/kg, p1=600 kPaC1=15 m/s

Q: Steam flows through an adiabatic turbine, entering at 1000 psia, 1100°F, and 300 ft/sec and exiting…

A: State 1: P1= 1000 psiaT1= 1100∘FV1= 300 ft/sec State 2: P2= 10 psiaT2= 300∘FV2= 600 ft/sec Power…

Q: Steam flows steadily through a turbine at a rate of 45,000 lbm/h, entering at 1000 psia and 900°F…

A: Given data as per question Flow rate of steam =45000 lbm/h Entering pressure = 1000 psia Entering…

Q: Steam enters an adiabatic turbine at 8 MPa and 500°C at a rate of 3 kg/s and leaves at 20 kPa. If…

A: Given, P1 = 8 MPa T1 = 500°C  P2 = 20 kPa = 0.02 MPa m = 3 kg/s W = 2.5 MW = 2.5 x 103 kW T2 =?

Q: Steam enters a nozzle at 400°C and 800 kPa with a velocity of 10 m/s, and leaves at 3008C and 200…

A:

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…

A:

Q: Helium gas is compressed from 16 psia and 85°F to 120 psia at a rate of 10 ft3 /s. Determine the…

A: Given: The initial pressure of the Helium gas is P1=16 psia. The final pressure of the pressure is…

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: Air enters a 36-cm diameter pipe steadily at 400 kPa and 40°C with a velocity of 8 m/s. Air is…

A:

Q: Air enters a compressor at atmospheric conditions of 20°C and 80 kPa and exits at 800 kPa and 200°C…

A: Given: The compressor inlet temperature, T1 = 20 C The compressor inlet pressure, P1 = 80 kPa The…

Q: In a power plant, the inlet water has a velocity of 100 ft/s and an elevation of 80 ft above the…

A:

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 From steam table

Q: Liquid water at 120 kPa enters a 7-kW pump where its pressure is raised to 6.2 MPa. If the elevation…

A: Given Data  Power = 7000 W P1= 120 KPa. P2=6200 KPa v= 0.001 m3/Kg Elevation = 10m

Q: Steam, with a specific enthalpy of 2803 kJ/kg, is flowing through a pipe located 5 m above the…

A:

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

A:

Q: In a steady flow apparatus, 135 kJ of work is done on each kg of fluid. The specific volume of the…

A:

Q: A 5-ft3 rigid tank initially contains refrigerant-134a at 60 psia and 100 percent quality. The tank…

A: The properties of refrigerant 134a at 60 psia and 100 percent quality are: The enthalpy of…

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 a compressor at atmospheric conditions of 20 C and 80 kPa and exits at 800 kPa and 200 C…

A: Given Atmospheric temperature = 20 C Atmospheric pressure = 80 kPa Exit temperature = 200 C Exit…

Q: A piston-cylinder device initially contains 1.4 kg of refrigerant-134a at 100 kPa and 20oC. Heat is…

A:

Q: Steam enters a turbine at 6 MPa and 450°C at a rate of 33 kg/s and exits at 50 kPa as saturated…

A:

Q: air enters a 300-mm diameter pipe steadily at 250 KPa and 25 °C with a velocity of 4.5 m/s. Air is…

A:

Q: A piston–cylinder device initially contains 1.4 kg of refrigerant-134a at 100 kPa and 20°C. Heat is…

A: The value of specific volume at an initial point having P1=100 kPa, T1=20°C and at the final point…

Q: A rotary air compressor is required to deliver 900 kg of air per hour. The enthalpy of the air at…

A:

Q: A piston–cylinder device initially contains 0.6 kg of steam with a volume of 0.1 m3 . The mass of…

A: Given, a piston- cylinder device with the following data. Initial Volume of steam, V1=0.1m3 Mass of…

Q: A 0.06-m3 rigid tank initially contains refrigerant- 134a at 0.8 MPa and 100 percent quality. The…

A:

Q: Water vapor enters a turbine with a mass flow rate of 3 kg/s, and at a temperature and pressure of…

A:

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: At 7Mpa, 600°C (From steam table) C1=60 m/s A1=150 cm2 v1=0.05566 m3/Kg   At 25KPa A2= 1400Cm2…

Q: A 0.05-m3 rigid tank initially contains refrigerant134a at 0.8 MPa and 100 percent quality. The tank…

A: Given Volume of tank = 0.05 m3 Pressure in tank = 0.8 MPa Quality = 100% Valve pressure = 1.2 MPa…

Q: Air enters a compressor at ambient conditions of 15 psia and 60°F with a low velocity and exits at…

A: Given Data Work inlet is: win=400 hp=282.72 Btu/s Heat output is: Q˙=1500 Btu/min=25 btu/s

Q: Determine the work required (in kJ/kg) for a pump that is used to increase the pressure of a liquid…

A: Given: P1 = 100 kPa   P2 = 1500 kPa ,    v = 0.001031 m3/kg Work required for pump to increase the…

Q: A rigid tank contains air at 500 kPa and 150°C. AS a result of heat transfer to the surroundings,…

A: Pressure P1 = 500 kpa Pressure P2 = 400 kpa Temperature T1 = 150 C Temperature T2 = 65 C

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

A:

Q: Air enters a compressor at ambient conditions of 15 psia and 60°F with a low velocity and exits at…

A: ambient condition, P=15 psiaT=60 oFExit condition, P=150 psiaT=620 oF