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The piston will be moved slowly and reversibly until 25 percent of the liquid has vaporized. Compute the maximum work that can be obtained.
A compressor operating adiabatically is to compress 2.83 m^3/min of air at 29.4 C and 102.7 kN/m^2 to 311.6 kN/m^2.
Calculate the brake KW of the fan and its efficiency is 65% and the gas has a molecular weight of 30.7. assume incompressible flow.
If the starting temp is 65OF and the coefficient of linear expansion is 0.00000992 in/in/OF, what temperature range would be needed to heat the collar and cool the pin?
In an accelerator protons emerge with velocity of 2.5 x 10^8 m/s. The accelerator is 0.8km long. How long does it take for protons to travel the length of the accelerator?
A turbine produces 2 MW of power while accepting steam at 3 MPa and 400 C and rejecting steam at 50 kPa and 100C.
Assuming that both the turbine and the pump are isentropic, find the thermal efficency of the cycle. (consider water enters the pump as saturated liquid).
Find the temperature of the combustion products of butane when burned in an adiabatic steady flow combustor at 1atm with 40 percent excess air preheated to 200c.
A vapor-compression refregeration (i.e. reverse Rankine) system circulates Refrigerant 134a at a rate of 6kg/min. Find the refrigerating capacity, in tons (1 ton = 211kJ/min)
Calculate the fraction of the water that condenses and the rate at which heat must be removed to deliver 1000 cubic feet per minute of humid air at the final condition.
Compute the convective heat-transfer coefficient. The thermal properties of the product are the following: specific heat =3.7 kJ/(kg°C), thermal conductivity = 0.6 W/(m °C), product viscosit
Iin the other stream refrigerant 134a enters at 10 bar, 80 dgerees celcius with mass flow rate of 134 kg/hour and exits at 10bar, 20degree celcius. determine the mass flow rate of liquid water.
Steam at 5 bar, 320 C enters a steady state turbine with a volumetric flow rate of 0.65m^3/s and evpands adiabatically to 0.7 bar, 160C. draw a (T-s) diagram and determine the power developed by the
A force acts at the origin of a coordinate system in a direction defined by the angles qx = 65.0° and qz = 69.7°. Knowing that the y component of the force is -920 lbs, determine the magnitu
In dribbling, the player compensates for the mechanical energy lost during each bounce. If the ball now returns to a height of 1.25 m, what is the magnitude of the force?
What will be the charge on the capacitor a long time after the switch is moved to position 2. (b) after the switch has been in position 2 for 2.0 ms (millisecond), the charge on the capacitor is mea
In an accelerator protons emerge with velocity of 2.5 x 10^8 m/s. The accelerator is 0.8km long. If the acceleration is uniform, how large is it?
What percent error in the answer to this problem occurs by ignoring the 1-m head of oil between the air-oil interface surface and the bottom surface of the piston?
A long cylinder having a diameter of 90mm is placed in the tunnel and the axis of the cylinder is held perpendicular to the air flow. What is the force on the cylinder per meter length?
Determine the expected rating lives in hours of a 35 mm bore (02 and 03 series) straight cylindrical bearings operating at 2400 rpm.
The outer ring rotates, and the bearing carries a combined steady load of 5kN radially and 1.5KN axially at 1000 rpm. Calculate the median life in hours.
At the nozzle exit the pressure is 14.7lbf/in2 and the velocity is 4055ft/s. Determine the rate of entropy production in Btu/R per lb of steam flowing.