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For a flow in the xy plane, the x component of velocity is given by u = Ax^2y^2, where A = 0.3 m^-3s^-1, and x and y are measured in meters. Find a possible y component for steady, incompressible flow. Is it also valid for unsteady, incompressible flow? Why? How many possible y components are there? Determine the equation of the streamline for the simplest y component of velocity. Plot the streamlines.
Heat transfer to air takes place partly at constant volume and partly at constant pressure, and it amounts to 1520.4 kJ/kg. Determine (a) the fraction of heat transferred at constant volume and (b) the thermal efficiency of the cycle.
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Find the enthalpy of the steam discharged into the condenser and the thermal efficiency of the cycle.
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