Atwo-stage air compressor operates at steady state, compressing 10 m^3/min of air from 100 kpa. 300 k, to 1200 kpa. an intercooler between the two stages cools the air to 300 k at a constant 5. pressure of 350 kpa. the compression processes are isentropic. calculate the power required to run the compressor, in kw, and compare the result to the power required for isentropic compression from the same inlet state to the same final pressure. draw the schematic, the p-v, and the t-s diagrams.

Burgers vector is generally parallel to the dislocation line. a)-true b)-false

Find the kinematic pressure of 160kpa. for air, r-287 j/ kg k. and hair al viscosity of air at a temperature of 50°c and an absolute (10 points) (b) find the dynamic viscosity of air at 110 °c. sutherland constant for air is 111k

Along 8-cm diameter steam pipe whose external surface temperature is 900c connects two buildings. the pipe is exposed to ambient air at 70c with a wind speed of 50 km/hr blowing across the pipe. determine the heat loss from the pipe per unit length. (b) air at 500c enters a section of a rectangular duct (15 cm x 20 cm) at an average velocity of 7 m/s. if the walls of the duct are maintained at 100c. a) the length of the tube for an exit temperature of the air to be 40 0c. b)the rate of heat transfer from the air. c) the fan power needed to overcome the pressure drop in this section of the duct.