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Consider a heat pump that operates on the ideal vapor compression refrigeration cycle with R-134a as the working fluid between the pressure limits of 0.32 MPa and 1.4 MPa. What is the coefficient of performance of this heat pump?
calculate the radius of an silver atom in cm given that ag has an fcc crystal structure a density of 10.5 gcm3 and an
What is the nozzle-exit-to-throat area ratio for case (a)? The gross thrust is the contribution to engine thrust made by the exhaust nozzle only.
determine the heat transfer per kg necessary to raise the temperature of a closed rigid tank of saturated water vapor
The weight W causes a tension of 100lb in cable CD. If d= 2ft, what is the momentum about the z axis due to the force exerted by the cable CD at point C?
Employing the ideal gas model, determine the change in specific entropy between the indicated states, in Btu/lbmol?ºR. Solve 2 ways: Use the appropriate ideal gas table AND also by using a constant specific heat value.
water density 1000 kgm3 flowing in a horizontal 25 cm diameter pipe at 8 ms and 300 kpa gauge enters a 90 degree
a steam power plant has a high pressure of 5 mpa and maintains 50 c in the condenser. the boiler exit temperature is
an air-standard brayton cycle is utilized as a jet propulsion engine. the aircraft flies at an altitude of 5000 m at a
What is the couple moment of the two couples that act on the pipe assembly. The distance from A to B is d = 400 mm.express the result as a cartesian vector.
advanced stress analysisin all but a very few vehicles today crush or crumple zones are employed as a method to reduce
a piston cylinder arrangement contains 0.4 m3 of saturated water vapor at 200 kpa. the piston is resting on a pair of
fig book design of machinerywith using the following data for the above diagram find torque at o2 and forces at o2 a
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