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Reheat, where high pressure and low pressure turbines are used, is added to a simple steam cycle to increase the steam quality at the location where the steam exits the low pressure turbine and goes to the condenser. Consider a steam cycle where the turbine entrance pressure and temperature are 3.5 MPa, 400°C, and the condenser pressure is 10 kPa. (a) Compare the turbine exit quality for a simple cycle (without reheat) with that for the low-pressure turbine exit quality of a reheat cycle where the exit at 0.8 MPa of the high-pressure turbine is reheated to 400°C and then expands through the low pressure turbine to 10 kPa. Also, (b) compare cycle efficiencies.
Find the terminal velocity of an 8.5-inch-diameter sphere weighing 16 lbf falling through the following fluids under the action of gravity: (a) the standard atmosphere at sea level; (b) the standard atmosphere at 10,000 ft elevation above MSL; (c) wa..
a compressor installed at a whalf for loading container ships is able to provide 6 bar.g pressure into the pressure
water is circulating through a closed system of pipes in a two floor apartment. on the first floor the water has a
the international space station operates at an altitude of 350 km. plans for the final construction show that 4.22 106
Your task is to find a structure / machine that has some biological component to it from the world of nature or sports and analyse it using math based equations.
Describe on your own words the three strengthen mechanism for metals (i.e. grain size reduction, solid solution strengthening and strain hardening). Be sure to explain how dislocations are involved in each of the strengthening techniques.
driving a 2000-ft loaded horizontal conveyor at 4 fts requires 35hp. what horsepower would be required if the conveyor
an energy-source at 1000 k transfers heat to a completely reversible heat engine. this engine transfers heat to a sink
A 1000 ft long metal duct is used to transport heated air from one side of a plant to another. The duct is 24in high by 36in wide. The heated air's temperature at the inlet of the duct is 170 F and the volumetric flow rate is 15,000 CFM. If the ambie..
hockey player a carries the puck on his stick and moves in the direction shown with a speed va4 ms. in passing the puck
a 0.3 kg softball has a velocity of 15 ms at an angle of 35deg below the horizontal just before making contact with the
For the cylinder-piston shown, piston is initially resting on the lower stops. The cylinder contains 1 kg of water at 1 bar and x = 0.64. A pressure of 3 bars is required to move the piston. The system is now heated until the water reaches 600° C. Sh..
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