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Find the specific flow exergy into and out of the steam turbine in Example 7.1, assuming an ambient at 293 K. Use the exergy balance equation to find the reversible specific work. Does this calculation of specific work depend on T0?
Example 7.1
Steam enters a steam turbine at a pressure of 1 MPa, a temperature of 300?C, and a velocity of 50 m/s. The steam leaves the turbine at a pressure of 150 kPa and a velocity of 200 m/s. Determine the work per kilogram of steam flowing through the turbine, assuming the process to be reversible and adiabatic.
A layer of normally consolidated clay has been filled with 2m of gravel at a unit weight of 17kN/m3 for a long period of time and the settlement of the clay layer monitored giving a total final settlement of 330mm.
Determine the mole fractions of a gas mixture that consists of 75 percent CH4 and 25 percent CO2 by mass
A stepped shaft ACB having a solid circular cross sections with two different diameters is held against rotation at the ends. If the allowable shear stress in the shaft is 60MPa, what is the maximum torque (To)max that may be applied at section C?
To imagine the diagram, the collar at point A (unstretched) is on the same x-axis as the anchor @ C, while the collar point B (stretched) is located downwards-left to point A, forming a 30 degree angle with the y-axis (vertical). In other words, the ..
When analyzing a truss using the method of sections to find theforces in specific members. What is a good strategy to helpdecide where to make the cuts to separate the truss into separatesections?
For carbon tetrachloride, the boiling point constant is 5.03°C · kg/mol, and the boiling point of pure carbon tetrachloride is 76.50°C.
The truss shown consists of 9 members and is supported by a ball and socket at A, two short links at B, and one short link at G. Check that this truss is a simple truss, that it is completely constrained
A 40 kg load is placed 3 m from a fulcrum. If an effort force is applied at a distance of 2 m, how much force is required to life the load to a horizontal balance? How could you reduce the required effort force? Are there any additional consideration..
KNowing that after being snugly fitted, the nut at C is tightened one full turn, determine (a) the tension in rod CD, (b) the deflection of point C of the rigid member ABC
Determine total expected primary consolidation settlement of the compressible normally consolidated clay layer. You must draw field consolidation line as part of your answer.
A constant-pressure piston/cylinder is 2 lbm steel and it contains 1 lbm air at 540 R, 60 psia. The system is now heated to 2600 R by a 2800 R source, and the steel has the same temperature as the air. Find the entropy generation using constant sp..
The motorcycle is traveling at 1 m/s when it is at A at the bottom of the ramp. If the speed is then increased at v=0.1 m/s^2, determine its speed and acceleration at the instant t=5s
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