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A piston-cylinder device contains 2.5 kg of air at 150 kpa and 2 m^3. the air is now compressed according to the relationship PV^2 = constant until it reaches 1 m^3. Determine the boundary work.
A Brayton cycle uses air and produces a net work of 14000 Btu/s with an inlet state of 60°F,
The mass of one wheel is 125 kg and its radius of gyration is 0.75 m. The radius of a wheel is 1 m.
rigid beam abc is supported as shown in figure p4.10. the pin connections at b c and d are each double shear
an insulated piston-cylinder device initially contains 0.3 m3 of carbon dioxide at 200 kpa and 27 oc. an electric
the particle has a mass of 0.5 kg and is confined to move along the smooth horizontal slot due to the rotation of the
what is the reason for the system? -to increase the air pressure from 100 to 1200 kpa design uses dual compressors to
For the preliminary design a power of 0.5kW/m^3 volume is to be used. Calculate the dimensions of the agitation system, rpm, and kW power.
It is known that the kinetics of recrystallization for some alloy obey the Avrami equation, and that the value of n in the exponential is 8.4. If, at some temperature, the fraction of recrystallization is .30 after 100 min, determine the rate of r..
if coal that has 2.25 sulfur and a heat content of 13000 btulb is burned in a 40 efficient 400-mw plant estimate the
determine the work and heat transfer, each in kJ. sketch the process on p-v and T-s coordinates. Associate the work and heat transfer with areas on these diagrams.
the boat is to be pulled onto shore using two ropes. If the resultant force is to be 1000 N, directed along the keel aa , determine the magnitude of forces T, P acting in each rope at the angle teta of P so that the magnitude of P is minimum. T ac..
a storage tank holds 75 cubic meters of a gas at 28deg c and a pressure of 130kpa. the gas appears to have a molecular
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