Air at 17 oC is compressed steadily in an adiabatic compressor from 100 kPa to 680 kPa. If the minimum power consumption of this compressor is 7 kW, determine the mass flow rate to run the compressor considering the variation of specific heats with temperature. Note: Do NOT perform interpolation, take the closest value.

Q: An ideal compressor pressurizes air at 100 kPa and 300 K to 1000 kPa. If the compressor has a mass…

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Q: Air enters a turbine at 600 kPa and 100oC and exits at 140 kPa and –20oC. Calculate the power…

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Q: (a) Determine the work spent on the system if the compression is reversible as well as the exit…

A: GIVEN :- P1=200 KPaT1=250°CP2=3.5 MPa   SOLUTION :- taking the super heated steam properties from…

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Q: Water at 180 degrees Celsius (Psat = 1.0 MPa) and 13 MPa enters a boiler. It then leaves the boiler…

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Q: Air enters an air compressor at 100 kPa and 100°C and a flow rate of 5 kg/s. If the air exits at 389…

A: solution p1= 100 kPa      T1= 100 C     P2= 389 kPa      T2= 398 C

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Q: Sketch T-S diagram process

A: Solution : Given data :  P1 = 100 kPa , p2 = 1500 kPa efficiency = 85% ,T1 = 27 degree C Calculation…

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Q: The vapour compression cycle below (Figure Q4) utilises the refrigerant R134a flowing at 0.05 kg s¹.…

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Q: Water vapor enters a turbine at a temperature of 300 ° C and a pressure of 600 kPa, leaving it as 20…

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Q: A) There is a steam system in which the boiler must be fed by using a pump that supplies 0.005 m³/s…

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Q: Refrigerant R-134a to the compressor of a refrigeration machine It enters at 140 kPa pressure and…

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Q: (Q3) Refrigerant-134a enters a compressor at 200 kPa and 60°C at a rate of 2 m/s and leaves at a…

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Q: A geothermal powerplant consists of a flash chamber (basically a yalve) which decreases the pressure…

A: according to the given data

Q: Refrigerant R-134a enters to the compressor of a refrigeration machine at a pressure of 140 kPa and…

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Q: R-134a enters a non-adiabatic compressor at 20°C and 4 bar and exits at 80°C and 12 bar. The volume…

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Q: A nozzle receives an ideal gas flow with a velocity of 25 m/s, and the exit at 100 kPa, 300 K…

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Q: Problem # 1 An isolated cylinder-piston system is connected to a supply line through a valve. The…

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Q: Q:) A piston-e is first expanded isothermally to 600 kPa, 0.2 m' then compressed Polytropically with…

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Q: water vapor enters a turbine at 6 MPa pressure and 800 °C and leaves at 20 kPa pressure. Since the…

A: given: Point1; P1 = 6MPa, T1 = 800oC Point 2; P2 = 20 KPa, 0.02 MPa isentropic efficiency; ηS = 0.95…

Q: Steam at 20 MPa and 620°C enters a steam turbine and expands to a condenser pressure of 100 kPa. An…

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Q: Refrigerant R-134a at 1.2 MPa and 75 °C is condensed to a saturated liquid in a condenser at…

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Q: Problem 2 Refrigerant R-134a enters an adiabatic compressor at 60 kPa and -10 °C with a volume flow…

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Q: Refrigerant R-134a to the compressor of a refrigeration machine It enters at 140 kPa pressure and…

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Q: The change of enthalpy of air in the cooling tower is 82 kJ/ kg and the mass flow of air is 215 kg/…

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A: The given values are- P1=550kPa , V1=0.025 m3, T1=288 KT2=477 K, T3=393 K, T4=288 K,  Cp= 1  kJ/kgK…

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