Water enters the constant 120-mm inside-diameter tubes of a boiler at 7 MPa and 65°C and leaves the tubes at 6 MPa and 450°C with a velocity of 85 m/s. Calculate the velocity of the water at the tube inlet and the inlet volume flow rate.

Q: (7)Steam enters an insulated long pipe, as in the figure, at 1600 kPa and 300°C and leaves at 1400…

A: Given: Inlet pressure P1=1600kPa Inlet temperature T1=300°C Outlet pressure P2=1400kPa Outlet…

Q: Steam enters a steam turbine at a pressure of 4 MPa and a temperature of 450 ° C at 25 kg / s. At 1…

A:

Q: P6-18 Air flowing at 0.5 m³/min enters à compres kPa and 25°C. The air exits at 600 kPa and 300°C.…

A: Air flow rate = 0.5 m3/min =0.00833m3/s At entry pressure = 101 kPa At entry Temperature = 25°C=…

Q: Steam enters a nozzle at 350C and 800 kPa with a velocity of 12 m/s, and leaves at 250C and 200 kPa…

A: Initial pressure P1 = 800 kPa Initial temperature T1 = 350 C Initial velocity V1 = 12 m/s Inlet area…

Q: Air at 300 K and 100 kPa steadily flows into a hair dryer having electrical work input of 1500 W.…

A: Given data as per question Air temperature =  300 K Pressure = 100 kPa work input = 1500 W exit air…

Q: Air is expanded from 1000 kPa and 600°C at the inlet of a steady-flow turbine to 100 kPa and 200°C…

A: Given Data : At Inlet : Pressure P1 = 1000 KPa Temperature T1 = 600 °C ≈ 600+273 = 873 °K Velocity…

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

A:

Q: Refrigerant-134a enters a compressor at 180 kPa as a saturated vapor with a flow rate of 0.35 m³/min…

A:

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

Q: Water is heated in a boiler. The inlet water enters as a saturated liquid at 5000 kPa and exits at…

A:

Q: Consider the turbocharger of an internal combustion engine. The exhaust gases enter the turbine at…

A:

Q: A cooling tower is a device that cools a spray of water by passing it through a stream of air. If 15…

A: Tdb1=T1=30oc Twb1=T2=20oc Patm=P1=P2=90 Kpa   To find: The partial vapor pressure of entering…

Q: A 1000-gallon compressed air receiver cylindrical tank of internal diameter equal to 5.75 ft is…

A: Given data:The volume of the tank is The internal diameter of the tank is The steady-state operating…

Q: Air flowing at 0.5 m3/min enters a compressor at 101 kPa and 25°C. The air exits at 600 kPa and…

A: Given data as per question Air flow rate = 0.5 m3/min =0.00833m3/s At entry pressure = 101 kPa At…

Q: Qn.4. . A 5-m-long section of an air heating system of a house passes through an unheated space in…

A: Given data: The area of cross-section is, A=20 cm×25 cm. The pressure at the inlet is, P1=100 kPa.…

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

A:

Q: Steam Steam enters a nozzle at 600 kPa and 500°C at a velocity of 9.9 m/s. Steam leaves the nozzle…

A: Given DataP1=600kPaT1=500°CV1=9.9 m/sP2=500kPaT2=300°CA1=250 cm2Q=95 kJ/kg

Q: Air is compressed in a two-stage , double-acting compressor which is electrically driven at 165 rpm.…

A: Pressure radio cross each stage of the compressor P=P4P11/NP4=final pressure (717.06 kpa)P1=intial…

Q: Air enters an electric furnace at 100 KPa and 28°C with a volume flow rate of 22 m3/min. At the exit…

A: Given data: P1=100 kPaT1=28°C=301 KQ˙=22 m3/min=0.3667 m3/sV1=3.7 m/sd1=d2=16 cmd3=0.3 m Need to…

Q: The water vapor that is 3.00 MPa and 540°C goes through a pipe with a 0.40 m^2 cross sectional area…

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Q: enthalpy of 3828 kJ/kg at 70m/s and leaves the same stage with an enthalpy: 2846 kJ/kg and a…

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Q: Water vapor enters an adiabatic turbine with a pressure of 7 MPa and a flow rate of 2kg / sec at a…

A:

Q: Steam enters an insulated pipe at 200 kPa and 200°C and leaves at 150 kPa and 150°C. The…

A: On using table A-6, the initial enthalpy and specific volume at 200 kPa and 200-degree centigrade is…

Q: Q3/ A rigid, insulated tank that is initially evacuated is connected through a valve to a supply…

A:

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

A: Given data as per the question Pressure in the tank = 4Mpa The final temperature of steam =  5500 c

Q: An adiabatic expansion of air occurs through a nozzle from 120 psia and 96o F to 20 psia. The final…

A: Given data Inlet pressure ( P1)=120psia= 827.371kPa Outlet Pressure (P2)=20psia= 137.895kPa Inlet…

Q: 600 kPa at 578 K and exits the turbine at a temperature of 428 K and a pressure of 100 kPa

A: apply first law of thermodynamics at inlet and outlet,here assume that air is an ideal gas.

Q: The work required for compressing a gas from an initial condition of 100 kPa and 300 K to a final…

A: Given data: Let us consider that the nozzle is adiabatic.

Q: ater flows through a horizontal coil heated from the outside by high temperature flue gases. As it…

A: given

Q: An air compressor takes air at 97kpa at the rate of 0.4m3/s and discharges to 600kpa. If power input…

A:

Q: An adiabatic open feedwater heater in an electric power plant mixes 0.2 kg/s of steam at 100 kPa and…

A: Outlet mass flow rate= 11.7Kg/s And the outlet velocity= 16.83m/s

Q: velocity and exits at 1 MPa and 347°C with a velocity of 90 m/s. The compressor is cooled at a rate…

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Q: Steam enters a nozzle at 600 °C and 1200 kPa with a velocity of 13 m/s and leaves at 400 °C and 600…

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

A:

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

A: