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The air entering the impeller of a centrifugal compressor has an absolute axial velocity of 100 m/s. At rotor exit the relative air angle measured from the radial direction is 26°36' the radial component of velocity is 120 m/s, and the tip speed of the radial vanes is 500 m/s.
Determine the power required to drive the compressor when the air flow rate is 2.5 kg/s and the mechanical efficiency is 95%. If the radius ratio of the impeller eye is 0.3, calculate a suitable inlet diameter assuming the inlet flow is incompressible. Determine the overall total pressure ratio of the compressor when the total-to-total efficiency is 80%, assuming the velocity at exit from the diffuser is negligible.
at the beginning of the compression process of an air-standard otto cycle p1 14.7 lbin2 and t1 530degr. the maximum
during a constant-pressure process it is found that the change in entropy is equal to 0.25cp. if the cp is constant and
Liquid water at 26.67°C flows in a straight horizontal pipe in which there is no exchange of either heat or work with the surroundings. Its velocity is 40 ft/seg in a pipe with an internal diameter of 2.54 cm until it flows into a section where the p..
a triangular access port must be provided in the side of a form containing liquid concrete. determine the resultant
Find the shear flow distribution in the thin walls of the section. All of the walls have a thickness of 8 mm. All ,the dimensions shown are in mm and are to the medians of the flanges and webs. Locate the shear center relative to the vertical web.
1. Determine the net electric power produced by the fuel cell-fan system, Pnet = P - Pf . 2. Consider the effect of attaching an aluminum (k = 200 W/m · K) finned heat sink, of identical top and bottom sections, onto the fuel cell body. The contact j..
a 4-in. diameter disk shown weighs 10 lb. the disk is released at rest when theta30 degrees and rolls down the curved
A submarine can safely resist 1800 psig. How deep in the ocean can the submarine travel? I found the answer to be 1205 m. Hope fully this is correct. The follow up question is. Calculate the pressure gradient due to gravity in water at 15 C. Express ..
the density and associated percent crysallinity for two nylon 66 materials are shown as follows compute the desities of
a large irrigation sprinkler unit mounted on a cart discharges water with a speed of 40 ms at an angle of 30 to the
Historically, the introduction of technology has caused profound changes in the labor market and,temporarily at least, displaced people from jobs.
steam at 3 mpa and 400 degc is expanded to 30 kpa in an adiabatic turbine with an isentropic efficiency of 92 percent.
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