Air enters the evaporator section of a window air conditioner at 100 kPa and 27°C with a volume flow rate of 6 m3 /min. Refrigerant-134a at 120 kPa with a quality of 0.3 enters the evaporator at a rate of 2 kg/min and leaves as saturated vapor at the same pressure. Determine the exit temperature of the air and the exergy destruction for this process, assuming the outer surfaces of the air conditioner are insulated.

Q: R134-a enters the condenser of a residential heat pump at 800 kPa and 40°C at a rate of 0.018 kg/s,…

A: Given   Pressure, P = 800 kPa   Mass flow rate, m = 0.018 kg/s Power, W = 1.2 kW Find     COP…

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Q: Refrigerant-134a enters an adiabatic compressor as saturated vapor at 100 kPa with a rate of 18…

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Q: Refrigerant 134-a enters the coil of the condenser of a residential heat pump at 500kPa and 400C and…

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Q: Refrigerant-134a is condensed in a refrigeration system by rejecting heat to ambient air at 25°C.…

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Q: Air enters the evaporator section of a window air conditioner at 100 kPa and 27C with a volume flow…

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Q: Consider a large furnace that can transfer heat at a temperature of 2000 R at a steady rate of 3000…

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Q: A heat pump with refrigerant-134a as the working fluid is used to keep a space at 25°C by absorbing…

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A:

Q: Refrigerant-134a is to be compressed from 0.14 MPa and –10°C to 0.8 MPa and 50°C steadily by a…

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Q: Steam enters an adiabatic turbine steadily at 400°C and 5 MPa and leaves at 20 kPa. The highest…

A: Given data: The temperature at inlet to the turbine is T1 = 400°C = (400°C + 273) K = 673 K The…

Q: Consider a family of four, with each person taking a 6-min shower every morning. The average flow…

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Q: Is the exergy of a system different in different environments? Explain

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Q: Refrigerant-134a expands in an adiabatic turbine from 1.2 MPa and 100°C to 0.18 MPa and 50°C at a…

A: Given : m = 1.25 Kg/s P1 = 1.2 MPa             to      P2 = 0.18 MPa  T1 = 100°C…

Q: Saturated steam is generated in a boiler by converting a saturated liquid to a saturated vapor at…

A:

Q: Steam enters an adiabatic turbine at 8 MPa, 550°C, and (13 ) m/s and leaves at 60 kPa, 150°C, and…

A: At state 1 P1=8MPa T1=550°C C1=13 m/s Using the superheated steam table h1=3521KJ/Kg S1=6.8778…

Q: Long cylindrical steel rods (ρ = 7833 kg/m3 and cp = 0.465 kJ/kg·°C) of 10-cm diameter are…

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Q: 1.Refrigerant-134a is to be compressed from 0.14 MPa and 10°C to 0.8 MPa and 50°C steadily by a…

A: Given data Refrigerant-134a is to be compressed from 0.14 MPa and 10°C to 0.8 MPa and 50°C steadily…

Q: At a rate of 0.05 kg/s, refrigerant-134a enters the compressor of a refrigerator as superheated…

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A:

Q: The fuel used in a boiler is having a calorific value of 25120 kJ/kg. The temperature of the gas…

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Q: What is Irreversible Adiabatic Compression?

A: Reversible process: A process is a process in which the system can return into its original…

Q: 300 kPa and 20 ºC water is heated in a mixing room with 300kPa pressure and 300 ºC steam. If the…

A:

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A: Given : P1=7MPaT1=400°Cm = 15 kg/sP2=1.8 MPaP3=10 kPaη = 88%T∞=25°C

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Q: Consider a Carnot heat-pump cycle executed in a steady-flow system in the saturated liquid–vapor…

A: Given dataMass flow rate of the rerigerant R-134a m.= 0.264kg/secNet power input to the cycle P =…

Q: Refrigerant R-134a enters a continuous flow adiabatic compressor as saturated steam at a speed of 2…

A: Problem is based on refrigeration and can be solved as :

Q: Liquid water enters an adiabatic piping system at 15°C at a rate of 8 kg/s. If the water temperature…

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

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Q: Refrigerant-134a is to be compressed from 0.14 MPa and 10°C to 0.8 MPa and 50°C steadily by a…

A:

Q: Steam enters an adiabatic turbine at 3MPa and 500C and exits at 30 kPa. If the efficiency of the…

A:

Q: Air enters the evaporator section of a window air conditioner at 100 kPa and 27°C with a volume flow…

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Q: Air enters the evaporator section of a window air conditioner at 100 kPa and 27°C with a volume flow…

A: Given data:

Q: 6. In a steady flow device, the mass flow rate of the fluid remains constant. T F 7. The volume flow…

A: 6. In a steady flow device, the mass flow rate of the fluid remains constant.  7. The volume flow…

Q: 8 kg/s of R134a is condensed from 700 KPa and 70 °C to saturated liquid at 700 KPa in a water-…

A: Given Data Mass flow rate of refrigerant=8 kg/s State 1: 700 kPa,70°C State 2: saturated liquid,700…

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