An axial flow turbine drives the single stage centrifugal compressor having following conditions: Turbine inlet temperature...

    

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An axial flow turbine drives the single stage centrifugal compressor having following conditions: Turbine inlet temperature 1200 K . . ● ● ● . . Turbine outlet temperature 1040 K Air and gas specific heat values: cpa=1004 J/kg-K, cpg=1148J/kg-K Air and gas specific heat ratios: Ya = 1.4, Yg = 1.33 Mechanical efficiency: 99% Work done factor and slip factor: 1.04 and 0.9 Compressor inlet total temperature and pressure: 288K and 101.3kPa Find Compressor exit peripheral velocity (U2) assuming no inlet swirl at the inlet of the compressor b) Pressure ratio of the compressor a) c) Find compressor impeller inlet (b1) and exit blade height (b2) using following design data: i. = 0.6 11. iii. iv. V. vi. 12 Fit Inlet mean radius is 113mm rih 0.5 Fit = Constant meridional velocity (Vx1=Vr2) between inlet and exit of the impeller Vx1 Flow coefficient of- = 0.31 U₂ No inlet swirl (α₁ = 0) An axial flow turbine drives the single stage centrifugal compressor having following conditions: Turbine inlet temperature 1200 K . . ● ● ● . . Turbine outlet temperature 1040 K Air and gas specific heat values: cpa=1004 J/kg-K, cpg=1148J/kg-K Air and gas specific heat ratios: Ya = 1.4, Yg = 1.33 Mechanical efficiency: 99% Work done factor and slip factor: 1.04 and 0.9 Compressor inlet total temperature and pressure: 288K and 101.3kPa Find Compressor exit peripheral velocity (U2) assuming no inlet swirl at the inlet of the compressor b) Pressure ratio of the compressor a) c) Find compressor impeller inlet (b1) and exit blade height (b2) using following design data: i. = 0.6 11. iii. iv. V. vi. 12 Fit Inlet mean radius is 113mm rih 0.5 Fit = Constant meridional velocity (Vx1=Vr2) between inlet and exit of the impeller Vx1 Flow coefficient of- = 0.31 U₂ No inlet swirl (α₁ = 0)

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