1) The inlet velocity in an axial compressor blade row is purely axial, V = 150...

 

 

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1) The inlet velocity in an axial compressor blade row is purely axial, V = 150 m/s. The blade speed is 180 m/s and the relative outlet angle is = 30. Assuming constant axial velocity through the blade row, isentropic flow and perfect gas air, Cp: = 1004.5 J/kgK. Calculate: a) The relative angle at the inlet (1) and the absolute swirl velocity (Ve2) and absolute flow angle (a2) at the outlet. b) The power supplied per unit mass flow. c) The change in rothalpy across the blade row. d) The change in relative stagnation enthalpy across the blade row. e) And the change in static temperature across the blade row. f) Draw the velocity triangles at the inlet and outlet of the blade. 1) The inlet velocity in an axial compressor blade row is purely axial, V = 150 m/s. The blade speed is 180 m/s and the relative outlet angle is = 30. Assuming constant axial velocity through the blade row, isentropic flow and perfect gas air, Cp: = 1004.5 J/kgK. Calculate: a) The relative angle at the inlet (1) and the absolute swirl velocity (Ve2) and absolute flow angle (a2) at the outlet. b) The power supplied per unit mass flow. c) The change in rothalpy across the blade row. d) The change in relative stagnation enthalpy across the blade row. e) And the change in static temperature across the blade row. f) Draw the velocity triangles at the inlet and outlet of the blade.