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A centrifugal compressor delivers 20 kg/s of air at 0.32 MN/m2 when running at 17500 rpm and absorbing 2800 kW. The inlet total conditions are 0.1 MN/m2 and 17C and the diameters of the impeller tip and diffuser inlet are 0.43 and 0.53 respectively. The diffuser passgers are 54 mm deep and half the toal losses occur in these. Determine for this machine the slip factor, isentropic efficiency and the Mach number at the diffuser inlet, stating your assumptions. For air Cp=1.0 kJ/kg.K and sp. Heat ratio = 1.4.
nitrogen at 80 kpa and 400 k enters an adiabatic diffuser steadily at a flow rate of 6000 kgh at 230 ms and leaves at
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What are the production conditions under which group technology and cellular manufacturing are most applicable?
at t0 a disk with mass 3kg is placed on a spinning platform. the disk slides and begins to accelerate. if the maximum
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drinking water at 10oc for an office complex must be pumped along a horizontal section of pvc pipe 50 m long at 2 ms.
Three springs and a mass are attached to a rigid, weightless bar PQ. Find the equation of motion and the natural frequency of vibration of the system.
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