Air is compressed steadily by a compressor from 100 kPa and 20C to 1200 kPa and 300C at a rate of 0.4 kg/s. The compressor is intentionally cooled by utilizing fins on the surface of the compressor and heat is lost from the compressor at a rate of 15 kW to the surroundings at 20C. Using constant specific heats at room temperature, determine (a) the power input to the compressor, (b) the isothermal efficiency, and (c) the entropy generation during this process.

Q: Steam enters an adiabatic turbine at 1 MPa and 300°C and leaves at 100 kPa as saturated steam. The…

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Q: A compressor operating with 7.7 kg/s water vapour with a compression ratio (P2/P1) equal to 3.0 is…

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Q: Steam enters a turbine steadily at a flow rate of 1 kg/s at 7 MPa and 500 degrees and exits as…

A: Inlet conditions:Mass flow rate (ṁ) = 1 kg/sInlet pressure (P1) = 7 MPaInlet temperature (T1) =…

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A: Given: Refrigerator using R-134a as the refrigerant  TL = - 10°CTo = 22 °CP1 =140 kPa as a saturated…

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A: The superheated refrigerant enters the compressor and leave as a saturated liquid. Therefore,…

Q: In a compressor, air enters at a temperature of 100 kPa and 20 ° C and leaves the compressor at 1200…

A: Given data: The temperature at the entry of compressor is T1=20°C=293 K The pressure at the entry of…

Q: Refrigerant-134a enters an adiabatic compressor as saturated vapor at 30 psia at a rate of 20 ft3…

A: The initial enthalpy and entropy of the refrigerant is The process of compression is isentropic;…

Q: Steam in an adiabatic turbine expands from 4 MPa and 450°C to 0.1 MPa with a flow rate of 6 kg / s.…

A: Given: Inlet condition of the steam,P1=4MPaT1=450°CExit condition of steam P2=0.1MPaMass flow rate…

Q: steady flow thermodynamic system receives 100 lb/min of a fluid at 30 psia and 200°F and discharges…

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Q: A turbine is operating steadily and connected to a generator to convert mechanical work to…

A: Solution: Inlet conditions Inlet Pressure P1=4.5MPa Inlet temperature T1=400°C From superheated…

Q: An open feedwater heater heats the feedwater by mixing it with hot steam. Consider an electric power…

A: Solution: Given Data: ms=0.1 lbm/sPs=10 psiaTs=200oFmf=2 lbm/sPf,i=10 psiaTf,i=100oFPf,e=10…

Q: 8-63 Steam enters an adiabatic turthine at 6 MPa, 600°C, and 80 m/s and leaves at 50 kPa, 100°C, and…

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Q: Air enters a compressor of a jet engine at 0.65 atm and 275 K with a flow rate of 63.5 kg/s. The…

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Q: Steam enters the condenser of a steam power plant at 20 kPa and a quality of 90 percent with a mass…

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Q: d 80 m/s and leaves at 50 kPa, 1008C, and 14 e power output of the turbine is 5 MW, deter

A: GivenAt EntranceP1=6 MPa , T1=600°C, v1=80 m/sP2=50 kPa, T2=100°C, v2=140 m/sWout=5 MW Ts=25°C

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

A: Given: The initial pressure P1=160 kPa. The final pressure is P2=0.03 m3/s. The entropy increase is…

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A: From the 1st law of Thermodynamics & energy balancing, we can write…

Q: A well-insulated, thin-walled, counterflow heat exchanger is to be used to cool oil (cp = 2.20…

A: The data give is, The initial temperature of oil, T1 = 150°C The final temperature of oil, T2 =…

Q: Steam enters an adiabatic turbine at 5 MPa, 500 ºC, and 80 m/s and leavesat 50 kPa, 150 ºC, and 140…

A: The objective of the question is to determine the mass flow rate of the steam flowing through the…

Q: A turbine operates with superheated steam entering at 900°F and 1,100 psia with a mass flow rate of…

A: GivenT1=900oF=482.22oCP1=1100 psia =7.58 MPam=70 lbm/s=31.75 kg/sP2=5psia =34.47 KPaη=0.80

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

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Q: Steam in an adiabatic turbine expands at a pressure of 6 MPa and a temperature of 450 ° C to a…

A: At outlet  6 MPa, 450 ° C  (Using superheated table) h1=3301.8 KJ/Kg 0.1 MPa (Using saturated table)…

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

A: Given: The inlet temperature of the refrigerant is T1=50°C. The inlet pressure of the refrigerant is…

Q: Steam enters the condenser of steam power plant at 20 kPaa and quality of 95% with a mass flow rate…

A: Answer: (a) The heat rejected by the condenser is 12446.58333 kW. (b) The mass flow rate of the…

Q: Air enters the compressor of a gas turbine plant at ambient conditions of 100 kPa and 25 ⁰C with a…

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Q: A steady-flow thermodynamic system receives 100 lb/min of fluid at 30 psia and 200 Fahrenheit and…

A: given data  flow rate m=100 lb/min=0.755 kg/s  Inlet pressure P1=30 psia  Inlet temperature…

Q: Steam enters an adiabatic turbine at 3000C and 400.0 kPa. Heat is transferred until the pressure…

A: State 1: T1= 300∘C P1= 400 kPa State 2: P2= 100 kPa

Q: A 3m³ rigid, insulated tank that is initially evacuated is connected through a valve to a supply…

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Q: eceives 6.85 m3/min of air at 96.53 kPaa, 43.3°C, and the high pressure cylinder (20.3 x 35.5-cm)…

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Q: Refrigerant-22 absorbs heat from a cooled space at 50°F as it flows through an evaporator of a…

A: Given, Temperature of sink, TL=50°F=510R Temperature at evaporator inlet, T1=10°F=470R Mass flow…