The Experts below are selected from a list of 2001 Experts worldwide ranked by ideXlab platform
A. E. Valamin - One of the best experts on this subject based on the ideXlab platform.
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Heat flow diagrams with and without a Deaerator for steam turbine plants with T-250/300-23.5 turbines
Thermal Engineering, 2016Co-Authors: A. E. Valamin, A. Yu. Kultyshev, T. L. Shibaev, A. A. Gol’dberg, M. Yu. StepanovAbstract:A T-250/300-240 turbine (currently known as T-250/300-23.5), which is operated at 31 steam turbine plants, is the largest in the world extraction turbine (by the heating extraction load) and one of the largest by the nominal capacity. All steam turbine plants equipped with T-250/300-23.5 turbines of different modifications are operated in large cities of Russia and the neighboring countries covering a significant part of the needs of cities for the electric power and almost fully supplying them with heat power. The design life of a significant part of the operated steam turbine plants of this family is either expired or almost expired. It refers to both the turbine unit (including a turbine and a generator) and the turbine plant equipment. For steam turbine plants equipped with T-250/300-23.5 turbines, which were initially designed and mounted for work with Deaerators at electric power stations, the heat flow diagrams with and without a Deaerator were compared. The main advantages and disadvantages of each scheme were shown. It was concluded that, for the newly constructed power units with supercritical steam parameters, it is preferable to use the heat flow diagram without a Deaerator; for the upgraded blocks, if there are no objective reasons for the removal of a Deaerator, it is recommended to keep the existing heat flow diagram of a turbine plant.
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heat flow diagrams with and without a Deaerator for steam turbine plants with t 250 300 23 5 turbines
Thermal Engineering, 2016Co-Authors: A. E. Valamin, T. L. Shibaev, Yu A Kultyshev, A A Goldberg, Yu M StepanovAbstract:A T-250/300-240 turbine (currently known as T-250/300-23.5), which is operated at 31 steam turbine plants, is the largest in the world extraction turbine (by the heating extraction load) and one of the largest by the nominal capacity. All steam turbine plants equipped with T-250/300-23.5 turbines of different modifications are operated in large cities of Russia and the neighboring countries covering a significant part of the needs of cities for the electric power and almost fully supplying them with heat power. The design life of a significant part of the operated steam turbine plants of this family is either expired or almost expired. It refers to both the turbine unit (including a turbine and a generator) and the turbine plant equipment. For steam turbine plants equipped with T-250/300-23.5 turbines, which were initially designed and mounted for work with Deaerators at electric power stations, the heat flow diagrams with and without a Deaerator were compared. The main advantages and disadvantages of each scheme were shown. It was concluded that, for the newly constructed power units with supercritical steam parameters, it is preferable to use the heat flow diagram without a Deaerator; for the upgraded blocks, if there are no objective reasons for the removal of a Deaerator, it is recommended to keep the existing heat flow diagram of a turbine plant.
Yu M Stepanov - One of the best experts on this subject based on the ideXlab platform.
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heat flow diagrams with and without a Deaerator for steam turbine plants with t 250 300 23 5 turbines
Thermal Engineering, 2016Co-Authors: A. E. Valamin, T. L. Shibaev, Yu A Kultyshev, A A Goldberg, Yu M StepanovAbstract:A T-250/300-240 turbine (currently known as T-250/300-23.5), which is operated at 31 steam turbine plants, is the largest in the world extraction turbine (by the heating extraction load) and one of the largest by the nominal capacity. All steam turbine plants equipped with T-250/300-23.5 turbines of different modifications are operated in large cities of Russia and the neighboring countries covering a significant part of the needs of cities for the electric power and almost fully supplying them with heat power. The design life of a significant part of the operated steam turbine plants of this family is either expired or almost expired. It refers to both the turbine unit (including a turbine and a generator) and the turbine plant equipment. For steam turbine plants equipped with T-250/300-23.5 turbines, which were initially designed and mounted for work with Deaerators at electric power stations, the heat flow diagrams with and without a Deaerator were compared. The main advantages and disadvantages of each scheme were shown. It was concluded that, for the newly constructed power units with supercritical steam parameters, it is preferable to use the heat flow diagram without a Deaerator; for the upgraded blocks, if there are no objective reasons for the removal of a Deaerator, it is recommended to keep the existing heat flow diagram of a turbine plant.
M. Yu. Stepanov - One of the best experts on this subject based on the ideXlab platform.
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Heat flow diagrams with and without a Deaerator for steam turbine plants with T-250/300-23.5 turbines
Thermal Engineering, 2016Co-Authors: A. E. Valamin, A. Yu. Kultyshev, T. L. Shibaev, A. A. Gol’dberg, M. Yu. StepanovAbstract:A T-250/300-240 turbine (currently known as T-250/300-23.5), which is operated at 31 steam turbine plants, is the largest in the world extraction turbine (by the heating extraction load) and one of the largest by the nominal capacity. All steam turbine plants equipped with T-250/300-23.5 turbines of different modifications are operated in large cities of Russia and the neighboring countries covering a significant part of the needs of cities for the electric power and almost fully supplying them with heat power. The design life of a significant part of the operated steam turbine plants of this family is either expired or almost expired. It refers to both the turbine unit (including a turbine and a generator) and the turbine plant equipment. For steam turbine plants equipped with T-250/300-23.5 turbines, which were initially designed and mounted for work with Deaerators at electric power stations, the heat flow diagrams with and without a Deaerator were compared. The main advantages and disadvantages of each scheme were shown. It was concluded that, for the newly constructed power units with supercritical steam parameters, it is preferable to use the heat flow diagram without a Deaerator; for the upgraded blocks, if there are no objective reasons for the removal of a Deaerator, it is recommended to keep the existing heat flow diagram of a turbine plant.
T. L. Shibaev - One of the best experts on this subject based on the ideXlab platform.
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Heat flow diagrams with and without a Deaerator for steam turbine plants with T-250/300-23.5 turbines
Thermal Engineering, 2016Co-Authors: A. E. Valamin, A. Yu. Kultyshev, T. L. Shibaev, A. A. Gol’dberg, M. Yu. StepanovAbstract:A T-250/300-240 turbine (currently known as T-250/300-23.5), which is operated at 31 steam turbine plants, is the largest in the world extraction turbine (by the heating extraction load) and one of the largest by the nominal capacity. All steam turbine plants equipped with T-250/300-23.5 turbines of different modifications are operated in large cities of Russia and the neighboring countries covering a significant part of the needs of cities for the electric power and almost fully supplying them with heat power. The design life of a significant part of the operated steam turbine plants of this family is either expired or almost expired. It refers to both the turbine unit (including a turbine and a generator) and the turbine plant equipment. For steam turbine plants equipped with T-250/300-23.5 turbines, which were initially designed and mounted for work with Deaerators at electric power stations, the heat flow diagrams with and without a Deaerator were compared. The main advantages and disadvantages of each scheme were shown. It was concluded that, for the newly constructed power units with supercritical steam parameters, it is preferable to use the heat flow diagram without a Deaerator; for the upgraded blocks, if there are no objective reasons for the removal of a Deaerator, it is recommended to keep the existing heat flow diagram of a turbine plant.
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heat flow diagrams with and without a Deaerator for steam turbine plants with t 250 300 23 5 turbines
Thermal Engineering, 2016Co-Authors: A. E. Valamin, T. L. Shibaev, Yu A Kultyshev, A A Goldberg, Yu M StepanovAbstract:A T-250/300-240 turbine (currently known as T-250/300-23.5), which is operated at 31 steam turbine plants, is the largest in the world extraction turbine (by the heating extraction load) and one of the largest by the nominal capacity. All steam turbine plants equipped with T-250/300-23.5 turbines of different modifications are operated in large cities of Russia and the neighboring countries covering a significant part of the needs of cities for the electric power and almost fully supplying them with heat power. The design life of a significant part of the operated steam turbine plants of this family is either expired or almost expired. It refers to both the turbine unit (including a turbine and a generator) and the turbine plant equipment. For steam turbine plants equipped with T-250/300-23.5 turbines, which were initially designed and mounted for work with Deaerators at electric power stations, the heat flow diagrams with and without a Deaerator were compared. The main advantages and disadvantages of each scheme were shown. It was concluded that, for the newly constructed power units with supercritical steam parameters, it is preferable to use the heat flow diagram without a Deaerator; for the upgraded blocks, if there are no objective reasons for the removal of a Deaerator, it is recommended to keep the existing heat flow diagram of a turbine plant.
I A Shatova - One of the best experts on this subject based on the ideXlab platform.
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water deaeration in water cooling systems of the stator winding in a turbogenerator with hydrogen water cooling
Thermal Engineering, 2018Co-Authors: G V Ledukhovsky, Yu E Barochkin, V. P. Zhukov, V N Vinogradov, I A ShatovaAbstract:Results of experimental investigations performed on 210–1200 MWel. power units at thermal and nuclear power stations yielded a statistical correlation of the corrosion rate for cooled copper conductors in water-cooling systems of the stator winding in a hydrogen-water cooled generator vs. cooling water quality characteristics, such as electrical conductivity, pH, and dissolved oxygen content. The content of dissolved oxygen in the cooling water is found to have a pronounced effect on the efficiency of corrosion protection of system elements. An engineering solution is proposed. It calls for installation of a small cavitation Deaerator operating on superheated water in the cooling water return pipeline from the turbogenerator stator winding to a vacuum tank from which steam is removed by the main ejector of the turbine unit condenser or the Deaerator’s own ejector. Special experimental investigations allowed the determination of the water deaeration efficiency in Deaerators of the considered type. It is described by a dependence of a relative decrease in the content by weight of oxygen dissolved in the deaerated water on the water overheating at the Deaerator inlet with reference to saturation temperature corresponding to the pressure in the steam suction pipeline. It was established by calculations that the proposed engineering solution decreased the corrosion rate of copper conductors in water-cooling systems of the stator winding, on average, by a factor of 2.1. Results of this investigation can be used in designing new power facilities or retrofitting process systems of operating hydrogen-water cooled turbogenerators.