Optimizing the geometrical parameters in a group of high- and intermediate-pressure stages used in large steam turbines

An algorithm for calculating a turbine flow path compartment is considered using which it is possible to minimize the loss of energy in a group of stages while fulfilling strength limitations. The calculations were carried out using information from a database containing the generalized characteristics of flow path elements obtained from tests. Calculation examples are given, the results of which are compared with the data of previous calculations carried out for a compartment in the high-pressure cylinder of a K-800-240 turbine.