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The eye of a centrifugal compressor has a hub - tip radius ratio of 0.4, a maximum relative flow Mach number of 0.9, and an absolute flow that is uniform and completely axial. Determine the optimum speed of rotation for the condition of maximum mass flow given that the mass flow rate is 4.536 kg/s. Also, determine the outside diameter of the eye and the ratio of axial velocity blade speed at the eye tip. Figure 7.12 may be used to assist the calculations.
small objects are delivered to the 72-in. inclined chute by a conveyor belt a which moves at a speed v1 1.2 ftsec. if
Starting from rest the motorboat travels around the circular path,P = 50m , at a speed v=(0.8t)m/s, where t is in seconds. Determine the magnitude of the boat's velocity when it has traveled 40m. Determine the magnitude of the boat's acceleration ..
On a unit surface area basis, determine the rate of heat transfer into and out of the wall and the rate of change of energy stored by the wall.
the rotation of rod oa about o is defined by the relation ? 0.5e -0.8tsin3pt where ? and t are expressed in radians and
Determine the internal energy change as saturated liquid steam at 600F goes to a two phase mixture of quality 0.40 at 600F. Saturated vapor water at 130?C undergoes an isometric process to 0.4 MPa. Determine the final fluid phase and the enthalpy cha..
If the density of air is 1.20 kg/m^3 at the inlet and 1.05 kg/m^3 at the exit, determine the percent increase in the velocity of air as it flows through the dryer.
a stationary gas turbine power plant operates on the brayton cycle and delivers 20 mw to an electric generator. the
find a closed body using 3 sourcessinks the sign of the strength will determine which is which located at -0.7m 0 0 0
A system consisting of 2 kg of water initially at 160 C, 10 bar undergoes an internally reversible, isothermal expansion during which there is an energy transfer by heat into the system of 2700 KJ. Determine the final pressure (in bar) and work (in K..
beginning in the 1900s water troughs called track pans were built between the rails to allow steam locomotives to scoop
Nitrogen flows steadily through a pipe with a constant cross-section area of 6cm^2. The nitrogen enters the pipe at 500 kPa and 50 degrees Celsius with a velocity of 15m/s. The nitrogen leaves the pipe at 200 kPa and 25 degrees Celsius. Assume that t..
water enters an insulated nozzle operating under steady conditions at a pressure of 60 psia a temperature of 350 degf
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