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A closed, rigid, stationary and adiabatic pressure vessel initially contains two-phase H_2O at a pressure of 175 kPa and a quality of 0.22036. The initial volume of the pressure vessel is 9.009 m^3. A mechanical stirrer adds energy as work to the contents of the pressure vessel until the final pressure of the steam is 1.80 MPA. Determine the entropy generation and the work transfer to or from the steam. Is the process irreversible, reversible, or impossible?
Refrigerant R-134a vapor in a piston-cylinder assembly undergoes a constant-pressure process from saturated vapor at 800 kPa to 50 ºC.
calculate the force required in direct extrusion of 1100-o aluminum from a diameternbspof 6 in. to 2 in. assume that
Rod AB is bent into shape of a circular arc adn is lodged between two pegs D adn E. It supports a load P at end B. Neglecting friction and the weight of the rod, determine the distance c corresponding to equilibrium when a = 1 in and R = 5 in.
solve the problem in the image. do it step wise in detail. this question is from book fracture mechanics - an
The total force Fa + Fb exerted on the shelter is in the direction parallel to the line L and it's magnitude is 400 lb. Graphically determine the magnitudes of Fa and Fb.
Saturated water vapor at 200oC is isothermally condensed to a saturated liquid in a piston-cylinder device. Calculate the heat transfer and the work done during this process in kJ/kg.
Describe how you would implement it using an open-loop system
hot water at 90c enters a 15-m section of cast iron pipe whose inner diameter is 5.3 cm at an average velocity of
a home buyer can afford to spend no more than 1500month on mortgage payments. suppose that the interest rate is 6 that
Design of absorption column and the cooler. Process design of other units should be completed along with pipe sizes.
Knowing that the pipe has inner and outer dimensions equal to 35 and 42 mm, respectively, detemine the normal and shearing stresses at point a and point b.
the rigid gateoab of fig. p2.58 is hinged ato and rests against a rigid support atb. what minimum horizontal forcep is
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