Open AccessSTEAM TURBINE DEVELOPMENT FOR SUPERCRITICAL STEAM PARAMETERS
Author(s) -
Екатерина Кондратьева,
Екатерина Кондратьева,
С. В. Олейников,
S. V. Oleynikov,
В. А. Рассохин,
В. А. Рассохин,
А. В. Кондратьев,
A. N. Kondrat'ev,
Александр Осипов,
Александр Осипов
Publication year - 2017
Publication title -
vestnik brânskogo gosudarstvennogo tehničeskogo universiteta
Language(s) - English
Resource type - Journals
ISSN - 1999-8775
DOI - 10.12737/24895
Subject(s) - supercritical fluid , steam turbine , turbine , impeller , steam electric power station , heat recovery steam generator , engineering , mechanical engineering , surface condenser , process engineering , power station , nuclear engineering , combined cycle , superheated steam , thermodynamics , physics , electrical engineering
The paper reports the expediency and substantiation of the necessity for the gradual transition to power units on supercritical stream parameters in world power engineering. Basic stages in the development of steam turbine manufacturing with supercritical steam parameters are considered. The parameter increase at the input makes a profound impact upon the design of a flowing part of turbines. To operate a great difference in enthalpies in a cylinder without changing stages number one has to modernize them and sometimes to change the design completely. In the paper there is considered the expediency of the application of axial highloaded stages developed by the Polytechnics of Leningrad (LPI). There are also described the stages of designing steam turbine plants with critical and supercritical steam parameters at the input in a turbine. As an example there is analyzed SKR-100-300 steam turbine with the initial steam parameters of 29.4MPa and 650S. The results of solution computations directed to the efficiency increase of a regulatory stage of K-300-240 steam turbine with supercritical parameters of 580C and 29.0 MPa are presented. The application as a profile of an impeller the blade design of LPI allows increasing turbine plant efficiency in a wide range of mode parameters and also reducing a general number of turbine stages.