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Consider a Carnot cycle executed in a closed system with air as the working fluid. The maximum pressure in the cycle is 730 kPa while the maximum temperature is 750 K. If the entropy increase during the isothermal heat rejection process is 0.31 kJ/kg K and the net work output is 114 kJ/kg, determine
A) the minimum pressure in the cycle
B) the heat rejection from the cycle
C) the thermal efficiency of the cycle
D) If an actual heat engine operates between the same temperature limits and produces 5700 kW of power for an air flow rate of 93.1 kg/s, determine the second law efficiency of this cycle.
explore the n2nono2 equilibrium in ambient atmosphere p 1 atm t 25 oc after the oxides no and no2 have been produced
a gas turbine for an automobile is designed with a regenerator. air enters the compressor of this engine at 100 kpa and
For this same component and alloy, compute the stress level at which fracture will occur for a critical internal crack length of 6.0mm.
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A vertical piston-cylinder device, which is insulated, initially contains 15 kg of water, 9 kg of which is in the vapor phase. The pressure inside the cylinder is maintained constant at 0.3 MPa by mass of the piston. Now steam at 0.8 MPa and 500 °C i..
A tank of 20 ft3 volume is half-filled with liquid water, and the remainder is filled by vapor at 550 psia. The water is heated until one-half of the liquid (by volume) is evaporated, while an automatic valve lets saturated vapor escape at such a rat..
consider a cylindrical specimen of some hypothetical metal alloy that has a diameter of 8.0 mm 0.31 in.. a tensile
An engineer insists that a component is fully constrained with 0 DOF because 2 plates are bolted together with 4 screws (assuming one of the 2 plates is considered "grounded"). Is he / she correct? Explain why or why not using concepts discuss..
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a person pushes a car from rest adn accelerates to 4kmh in 5 seconds. the veolicty stays constant for 1km the first 500
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