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The air conditioner in a car uses R-134a and the compressor power input is 1.5 kW bringing the R-134a from 201.7 kPa to 1200 kPa by compression.
The Airbus A-340 passenger plane has a maximum takeoff weight of about 260,000 kg, a length of 64 m, a wing span of 60 m, a maximum
The black grille on the back of a refrigerator has a surface temperature of 35°C with a total surface area of 1 m2.
The basic barometer can be used to measure the height of a building. If the barometric readings at the top and at the bottom of a building are 730 and 755 mm Hg
The basic barometer can be used as an altitude measuring device in airplanes. The ground control reports a barometric reading of 753 mm Hg
The barometer of a mountain hiker reads 930 m bars at the beginning of a hiking trip and 780 m bars at the end.
The average specific heat of the human body is 3.6 kJ/kg -c °C. If the body temperature of an 80-kg man rises from 37°C to 39°C during strenuous exercise
Steam is accelerated by a nozzle steadily from a low velocity to a velocity of 210 m/s at a rate of 3.2 kg/s. If the temperature and pressure of the steam
Steam is throttled from 8 MPa and 450°C to 6 MPa. Determine the wasted work potential during this throttling process. Assume the surroundings to be at 25°C
Steam leaves a power plant steam generator at 3.5 MPa, 400°C, and enters the turbine at 3.4 MPa, 375°C.
Steam is throttled from 9 MPa and 500°C to a pressure of 7 MPa. Determine the decrease in energy of the steam during this process.
Steam is generated in the boiler of a cogeneration plant at 10 MPa and 450°C at a steady rate of 5 kg/s. In normal operation, steam expands in a turbine
Steam is condensed at a constant temperature of 30°C as it flows through the condenser of a power plant by rejecting heat at a rate of 55 MW.
Steam is compressed by an adiabatic compressor from 0.2 MPa and 150°C to 2.5 MPa and 250°C at a rate of 1.30 kg/s. The power input to the compressor is.
The absolute pressure inside a tank is 0.4 bars, and the surrounding atmospheric pressure is 98 kPa. What reading would a bourdon gage mounted in the tank wall
The 60-W fan of a central heating system is to circulate air through the ducts. The analysis of the flow shows that the fan needs to raise the pressure of air
The decrease in the energy of the steam as it flows through the turbine is. You must solve the problem step wise step.You should include all the units
Steam enters a turbine at 450 lbf/in 2, 900 F, expands in a reversible adiabatic process and exhausts at 2 lbf/in.2
Steam enters a turbine at 300°C and exhausts at 20 kPa. It is estimated that the isentropic efficiency of the turbine is 70%. What is the maximum turbine
Steam enters a turbine at 25 MPa, 550°C and exits at 5 MPa, 325°C at a flow rate of 70 kg/s. Determine the total power output of the turbine
Steam enters a nozzle with a low velocity at 150°C and 200 kPa, and leaves as a saturated vapor at 75 kPa
Steam enters an adiabatic turbine at 8 MPa and 500°C at a rate of 18 kg/s, and exits at 0.2 MPa and 300°C.
Steam enters an adiabatic turbine at 7 MPa, 600°C, and 80 m/s and leaves at 50 kPa, 150°C, and 140 m/s
Steam enters an adiabatic turbine at 10 MPa and 500°C and leaves at 10 kPa with a quality of 90 percent.
Steam enters an adiabatic turbine steadily at 400°C and 3 MPa, and leaves at 50 kPa. The highest possible percentage of mass of steam that condenses