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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.
calculate the average distance moved in one day by smoke particles in air for the following cases a smoke diffuses in
a rigid tank contains 7.5 kg of saturated water mixture at 400 kpa. a valve at the bottom of the tank is now opened and
a hollow vertical cylinder with rigid walls and a height of h is closed on both ends and is filled with an
Calculate the Molar concentration of hydrogen on both sides, Molar flux of hydrogen and mass flux of hydrogen
Consider the (eight) n = 2 states, 12 / m1 ms}. Find the energy of each state, under strong-field Zeeman splitting.
a house has a composite wall of plaster board lp 10mm k0.72 wm.k fibre glass insulation lb100mm k1.4 wm.k and plywood
for a two dimensional channel flow i.e. the flow between two plates of infinite length and span assume that the flow is
If V is a velocity, l a length and v a fluid property having dimensions of L2T-1, which of the following combinations are dimensionless:
an important radionuclide produced in water-cooled nuclear reactors is 16n which has a half-life of 7.13 s and emits
Refrigerant 22 enters an insulated compressor operating at steady state as saturated vapor at - 16 C with a mass flow rate of 1.5 kg/s. Refrigerant exits at 7 bar, 70 C. Changes in KE and PE from inlet to exit can be ignored. Determine: (a) the volum..
a food department is kept at -15 degrees celsius by a refrigerator in an environment at 25 degrees celsius. the total
a rankine cycle operates between pressure limits of 500 and 2 psia. the temperature of the steam entering the turbine
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