Specific Features of the Replacement of the Available Flow Path by the Optimal Flow Path when Upgrading the Steam Turbine High-Pressure Cylinder

This scientific paper gives the main research data obtained during solution of search problem to define optimal parameter values for thermal circuit К-540-23.5 turbine unit that would provide most efficient operation both version high pressure cylinder (HPC) as part and on whole. The effect distribution heat differences in stages flow used by integral quality factors has been assessed. calculation studies with section high-pressure showed temperature underheated feed water heater (HPH) arranged near steam generator critical power economical efficiency entire unit. two-criterion Pareto upgrading was formulated solved underheating values. Consideration given two variants optimization heater. Comparison analysis identity it confirms correctness formulation algorithms its solution.