Blading for highly loaded turbines

摘要

The turbine has an axial turbine stage of guide blade row (LE) and rotor blade row (LA) in a common housing (30) with intake section (31) and outlet section (32). The ratio of axial chord length (Sax) to height (h) of the blade rows for a turbine part located between intake and outlet sections, is chosen, so that a figure RSH is larger than 1. RSH is.................. P (W) = turbine output p (Pa) = arithmetical mean between intake and outlet pressure of turbine z (-) = number of stages m (kg/s) = working medium mass flow rate through turbine N (1/s) = RPM hi (m) = height of blade in row i, on outlet side of blade DM,i(m)= average mean of outer hub diameter and inner housing diameter measured on outlet side of blade in row i, sax,i (m) = max. axial chord length of blade in same row.