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A centrifugal compressor impeller has 17 radial vanes of tip diameter 165 mm. it rotates at 46,000 rpm and the air mass flow rate
A centrifugal compressor impeller has 17 radial vanes of tip diameter 165 mm. it rotates at 46,000 rpm and the air mass flow rate is 0.6 kg/s with no whirl at inlet. At inlet to the impeller, the tip radius of the eye is 44.25 mm while the hub radius of the eye is 19.25 mm. The static pressure and temperature at the impeller inlet are 93 kPa and 293 K respectively. R=287 J/kg- K for air, c J kg Kp =1005/- a) Calculate slip factor b) Calculate the tip velocity of the impeller c) Calculate theoretical power without considering slip d) Calculate impeller inlet air density e) Obtain inlet radial velocity at the impeller f) Draw velocity triangles at the inlet g) The blade angle at the mean diameter of the eye at the impeller inlet h) Calculate the total enthalpy of the impeller inlet i) Calculate the total outlet enthalpy at the impeller outlet j) Calculate the stagnation temperature at the impeller exit k) Determine the stagnation pressure at the impeller exit if the total to-total efficiency of the impeller is 90%
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Given Number of radial vanesN 17 Tip diameter of impellerD 165 mm 0165 m Speed of impellern 46000 rp...Get Instant Access to Expert-Tailored Solutions
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