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You have a heat engine that has a thermal energy resevoir available at 500C, the thermal energy to heat the engine is at a maximum rate of 20 kW. The sink of the engine is 20C, the power output required from the engine is 16kW. A) find the maximum thermal efficiency of this heat engine (62.1%). B) Determine whether this engine can produce its desired power output (no).
how to find the change in diameter of a cylinder of 225mm length, 25mm diameter and a load of 180Km?
Determine the phase or phases in a system consisting of H2O at the following conditions and sketch p-v and T-v diagrams shown the locations of each state?
a large fireplace in a ski lodge has a glass firescreen which covers a vertical opening in the fireplace. the opening
a symmetrical wedge having a total vertex angle of 60 degrees is traveling at mach number of 3 at an altitude of 15 km.
Please find the stoichiometric air/fuel ratio of benzene (C6H6) and the actual air fuel ratio when operated at equivalance ratio of 0.8.
in a hydroelectric power plant water enters the turbine nozzles at 800 kpa absolute with a low velocity. if the nozzle
an electrical wire having a diameter of 1.5 mm and covered with a plastic insulation thickness 2.5 mm is exposed to
(a) Determine the blade angles at leading and trailing edges of both the rotor and stator at the mean radii, (b) Calculate the mass flow rate and the power required for each stage.
The uniform 6-kg slender rod rests on the top center of the 3kg block. If the coefficients of static friction at the points of contact are ua=.4 and ub=.6, and uc=.3, determine the largest couple moment M which can be applied to the rod without ca..
a 20 mm id steel tube carries liquid at 10 mpa. assume that the tubing is very long. determine the principal stresses
a piston-cylinder device initially contains 0.07m3 of nitrogen gas at 130kpa and 120 degrees celsius. the nitrogen is
a piston-cylinder device initially contains 1.2 kg of steam with a volume of 0.2 m3. the mass of the piston is such
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