TY JOUR TI STEAM TURBINE DEVELOPMENT FOR SUPERCRITICAL STEAM PARAMETERS KW steam turbine KW initial steam parameters KW turbine efficiency factor KW adjusting stage KW optimization computation KW simulator JO Bulletin of Bryansk state technical university AU Kondrateva , E.. AU Oleynikov , S.. AU Rassokhin , V.. AU Kondratev , A.. AU Osipov , A.. PY 2017 IS 2017 PB Bryansk State Technical University