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A straight duct with a radius of 40 cm contains a fan that is operating at steady state. The fan draws air from the left at 20 m3/min, 95 kPa, 20 C and it exits the duct at 115 kPa, 40 C. Heat transfer occurs from the duct to the surroundings at a rate of 2 kW. Determine the power input to the fan, the exit volume flow rate, and the inlet and exit velocities. Assume that air behaves as an ideal gas with constant specific heats Cp = 1.004 kJ/(kgK) and Cv = 0.717 kJ/(kgK). Neglect changes in potential and kinetic energy.
a satellite is in earth orbit with an altitude at perigee of 555.0 km and an altitude at apogee of 1200.0 km. a. what
Please find the mass of gasoline fuel injected into each cylinder in each working cycle.
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read the titled books drilling fluid engineering manual. textbook prepared by m-i drilling fluids co.1998 halliburton
question 1 entropya in a coal fired thermal power station indicate where the exergy contained in the coal is destroyed.
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the shaft of a gearbox is coupled through a no. 60 chain drive rotating a concrete mixer at 180 rpm clockwise. the
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