The Experts below are selected from a list of 3372 Experts worldwide ranked by ideXlab platform
E. N. Migun - One of the best experts on this subject based on the ideXlab platform.
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All-regime combined-cycle plant: Engineering solutions
Thermal Engineering, 2016Co-Authors: P. A. Berezinets, G. G. Tumanovskii, I. N. Krylova, V. N. Markina, G. E. Tereshina, E. N. MigunAbstract:The development of distributed power generation systems as a supplement to the centralized unified power grid increases the operational stability and efficiency of the entire power generation industry and improves the power supply to consumers. An all-regime cogeneration combined-cycle plant with a power of 20–25 mW (PGU-20/25T) and an electrical efficiency above 50% has been developed at the All-Russia Thermal Engineering Institute (ATEI) as a distributed power generation object. The PGU-20/25T two-circuit cogeneration plant provides a wide electrical and thermal power adjustment range and the absence of the mutual effect of electrical and thermal power output regimes at controlled frequency and power in a unified or isolated grid. The PGU-20/25T combined-cycle plant incorporates a gas-turbine unit (GTU) with a power of 16 MW, a Heat Recovery Boiler (HRB) with two burners (before the Boiler and the last Heating stage), and a cogeneration steam turbine with a power of 6/9 MW. The PGU-20/25T plant has a maximum electrical power of 22 MW and an efficiency of 50.8% in the Heat Recovery regime and a maximum thermal power output of 16.3 MW (14 Gcal/h) in the cogeneration regime. The use of burners can increase the electrical power to 25 MW in the steam condensation regime at an efficiency of 49% and the maximum thermal power output to 29.5 MW (25.4 Gcal/h). When the steam turbine is shut down, the thermal power output can grow to 32.6 MW (28 Gcal/h). The innovative equipment, which was specially developed for PGU-20/25T, improves the reliability of this plant and simplifies its operation. Among this equipment are microflame burners in the Heat Recovery Boiler, a vacuum system based on liquid-ring pumps, and a vacuum deaerator. To enable the application of PGU-20/25T in water-stressed regions, an air condenser preventing the Heat-transfer tubes from the risk of covering with ice during operation in frost air has been developed. The vacuum system eliminates the need for an extraneous source of steam for the startup of the PGU-20/25T plant. The vacuum deaerator provides prestartup deaeration and the filling of the entire condensate feed pipeline with deaerated water and also enables the maintenance of the water temperature before the Boiler at a level of no lower than 60°C and the oxygen content at a level of no higher than 10 μg/L during operation under load. The microflame burners in the Heat Recovery Boiler enable the independent adjustment of the electrical power and the thermal power output from the PGU-20/25T plant. All the innovative equipment has been tested on experimental prototypes.
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All-regime combined-cycle plant: Engineering solutions
Thermal Engineering, 2016Co-Authors: P. A. Berezinets, G. G. Tumanovskii, I. N. Krylova, V. N. Markina, G. E. Tereshina, E. N. MigunAbstract:The development of distributed power generation systems as a supplement to the centralized unified power grid increases the operational stability and efficiency of the entire power generation industry and improves the power supply to consumers. An all-regime cogeneration combined-cycle plant with a power of 20–25 mW (PGU-20/25T) and an electrical efficiency above 50% has been developed at the All-Russia Thermal Engineering Institute (ATEI) as a distributed power generation object. The PGU-20/25T two-circuit cogeneration plant provides a wide electrical and thermal power adjustment range and the absence of the mutual effect of electrical and thermal power output regimes at controlled frequency and power in a unified or isolated grid. The PGU-20/25T combined-cycle plant incorporates a gas-turbine unit (GTU) with a power of 16 MW, a Heat Recovery Boiler (HRB) with two burners (before the Boiler and the last Heating stage), and a cogeneration steam turbine with a power of 6/9 MW. The PGU-20/25T plant has a maximum electrical power of 22 MW and an efficiency of 50.8% in the Heat Recovery regime and a maximum thermal power output of 16.3 MW (14 Gcal/h) in the cogeneration regime. The use of burners can increase the electrical power to 25 MW in the steam condensation regime at an efficiency of 49% and the maximum thermal power output to 29.5 MW (25.4 Gcal/h). When the steam turbine is shut down, the thermal power output can grow to 32.6 MW (28 Gcal/h). The innovative equipment, which was specially developed for PGU-20/25T, improves the reliability of this plant and simplifies its operation. Among this equipment are microflame burners in the Heat Recovery Boiler, a vacuum system based on liquid-ring pumps, and a vacuum deaerator. To enable the application of PGU-20/25T in water-stressed regions, an air condenser preventing the Heat-transfer tubes from the risk of covering with ice during operation in frost air has been developed. The vacuum system eliminates the need for an extraneous source of steam for the startup of the PGU-20/25T plant. The vacuum deaerator provides prestartup deaeration and the filling of the entire condensate feed pipeline with deaerated water and also enables the maintenance of the water temperature before the Boiler at a level of no lower than 60°C and the oxygen content at a level of no higher than 10 μg/L during operation under load. The microflame burners in the Heat Recovery Boiler enable the independent adjustment of the electrical power and the thermal power output from the PGU-20/25T plant. All the innovative equipment has been tested on experimental prototypes.
E. A. Popov - One of the best experts on this subject based on the ideXlab platform.
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Specific features of the stressed state arising in the high-pressure drum of a combined-cycle plant’s Heat-Recovery Boiler during its startup
Thermal Engineering, 2011Co-Authors: V. A. Dvoinishnikov, E. A. PopovAbstract:Results obtained from a study of the stressed state arising in the wall of a Heat-Recovery Boiler’s high-pressure drum during its startup are presented, and the effect of the pressure growth rate on the maximal stresses arising in the wall is analyzed. Recommendations for determining the optimal loading rate of the Heat-Recovery Boiler are given.
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specific features of the stressed state arising in the high pressure drum of a combined cycle plant s Heat Recovery Boiler during its startup
Thermal Engineering, 2011Co-Authors: V. A. Dvoinishnikov, E. A. PopovAbstract:Results obtained from a study of the stressed state arising in the wall of a Heat-Recovery Boiler’s high-pressure drum during its startup are presented, and the effect of the pressure growth rate on the maximal stresses arising in the wall is analyzed. Recommendations for determining the optimal loading rate of the Heat-Recovery Boiler are given.
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Specific features relating to operation of the high-pressure evaporation system of a natural-circulation Heat-Recovery Boiler during its startup from the cold state
Thermal Engineering, 2010Co-Authors: V. A. Dvoinishnikov, E. A. Popov, D. A. BulychevAbstract:We study how the time taken for a gas turbine to reach the idle running mode influences the performance of each circulation loop and the entire evaporation system, and determine what specific features are pertinent to Heat transfer in the Heat-Recovery Boiler during its starting from the cold state.
A. D. Trukhnii - One of the best experts on this subject based on the ideXlab platform.
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Studying the effect the parameters of steam power cycle have on the economic efficiency and reliability of three-loop combined-cycle plants with steam reHeating
Thermal Engineering, 2012Co-Authors: T. S. Luk’yanova, A. D. TrukhniiAbstract:We consider the effect the temperatures and pressures in the high- and intermediate-pressure loops have on the economic characteristics of the Heat-Recovery Boiler, steam turbine cylinders, and steam turbine unit of the combined-cycle plant and on the final content of moisture in the steam turbine.
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Selecting the parameters and carrying out design calculations of three-loop combined-cycle plants equipped with a vacuum deaerator and steam reHeat system
Thermal Engineering, 2011Co-Authors: T. S. Luk’yanova, A. D. TrukhniiAbstract:A procedure for carrying out end-to-end calculation of the parameters of media and technical-and-economic indicators characterizing three-loop Heat-Recovery combined-cycle plants equipped with a vacuum deaerator and steam reHeating system is described. The procedure makes it possible to determine the parameters of gases and working fluid of a Heat-Recovery Boiler, the thermal power of its Heating surfaces, and carry out an approximate calculation of the steam turbine and then its stage-wise calculation, all during the design calculation phase.
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Design calculation of three-loop combined-cycle plants with steam reHeating
Thermal Engineering, 2010Co-Authors: A. D. Trukhnii, N. S. ParshinaAbstract:We describe a procedure for carrying out an end-to-end calculation of the parameters of media and technical and economic indicators of three-loop Heat-Recovery-type combined-cycle plants with steam reHeating that makes it possible to determine the parameters of gases and working fluid of a Heat-Recovery Boiler and the thermal power of its Heating surfaces, and to carry out an approximate calculation of the steam turbine for compartments and then for stages at the stage of design calculations using the parameters of gases exhausted from the gas turbine unit as initial data. The procedure is implemented in the form of a computer program in the DELPHI environment and makes it possible to quickly and reliably optimize a combined-cycle plant’s thermal circuit and steam turbine design.
V. A. Dvoinishnikov - One of the best experts on this subject based on the ideXlab platform.
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Specific features of the stressed state arising in the high-pressure drum of a combined-cycle plant’s Heat-Recovery Boiler during its startup
Thermal Engineering, 2011Co-Authors: V. A. Dvoinishnikov, E. A. PopovAbstract:Results obtained from a study of the stressed state arising in the wall of a Heat-Recovery Boiler’s high-pressure drum during its startup are presented, and the effect of the pressure growth rate on the maximal stresses arising in the wall is analyzed. Recommendations for determining the optimal loading rate of the Heat-Recovery Boiler are given.
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specific features of the stressed state arising in the high pressure drum of a combined cycle plant s Heat Recovery Boiler during its startup
Thermal Engineering, 2011Co-Authors: V. A. Dvoinishnikov, E. A. PopovAbstract:Results obtained from a study of the stressed state arising in the wall of a Heat-Recovery Boiler’s high-pressure drum during its startup are presented, and the effect of the pressure growth rate on the maximal stresses arising in the wall is analyzed. Recommendations for determining the optimal loading rate of the Heat-Recovery Boiler are given.
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Specific features relating to operation of the high-pressure evaporation system of a natural-circulation Heat-Recovery Boiler during its startup from the cold state
Thermal Engineering, 2010Co-Authors: V. A. Dvoinishnikov, E. A. Popov, D. A. BulychevAbstract:We study how the time taken for a gas turbine to reach the idle running mode influences the performance of each circulation loop and the entire evaporation system, and determine what specific features are pertinent to Heat transfer in the Heat-Recovery Boiler during its starting from the cold state.
P. A. Berezinets - One of the best experts on this subject based on the ideXlab platform.
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All-regime combined-cycle plant: Engineering solutions
Thermal Engineering, 2016Co-Authors: P. A. Berezinets, G. G. Tumanovskii, I. N. Krylova, V. N. Markina, G. E. Tereshina, E. N. MigunAbstract:The development of distributed power generation systems as a supplement to the centralized unified power grid increases the operational stability and efficiency of the entire power generation industry and improves the power supply to consumers. An all-regime cogeneration combined-cycle plant with a power of 20–25 mW (PGU-20/25T) and an electrical efficiency above 50% has been developed at the All-Russia Thermal Engineering Institute (ATEI) as a distributed power generation object. The PGU-20/25T two-circuit cogeneration plant provides a wide electrical and thermal power adjustment range and the absence of the mutual effect of electrical and thermal power output regimes at controlled frequency and power in a unified or isolated grid. The PGU-20/25T combined-cycle plant incorporates a gas-turbine unit (GTU) with a power of 16 MW, a Heat Recovery Boiler (HRB) with two burners (before the Boiler and the last Heating stage), and a cogeneration steam turbine with a power of 6/9 MW. The PGU-20/25T plant has a maximum electrical power of 22 MW and an efficiency of 50.8% in the Heat Recovery regime and a maximum thermal power output of 16.3 MW (14 Gcal/h) in the cogeneration regime. The use of burners can increase the electrical power to 25 MW in the steam condensation regime at an efficiency of 49% and the maximum thermal power output to 29.5 MW (25.4 Gcal/h). When the steam turbine is shut down, the thermal power output can grow to 32.6 MW (28 Gcal/h). The innovative equipment, which was specially developed for PGU-20/25T, improves the reliability of this plant and simplifies its operation. Among this equipment are microflame burners in the Heat Recovery Boiler, a vacuum system based on liquid-ring pumps, and a vacuum deaerator. To enable the application of PGU-20/25T in water-stressed regions, an air condenser preventing the Heat-transfer tubes from the risk of covering with ice during operation in frost air has been developed. The vacuum system eliminates the need for an extraneous source of steam for the startup of the PGU-20/25T plant. The vacuum deaerator provides prestartup deaeration and the filling of the entire condensate feed pipeline with deaerated water and also enables the maintenance of the water temperature before the Boiler at a level of no lower than 60°C and the oxygen content at a level of no higher than 10 μg/L during operation under load. The microflame burners in the Heat Recovery Boiler enable the independent adjustment of the electrical power and the thermal power output from the PGU-20/25T plant. All the innovative equipment has been tested on experimental prototypes.
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All-regime combined-cycle plant: Engineering solutions
Thermal Engineering, 2016Co-Authors: P. A. Berezinets, G. G. Tumanovskii, I. N. Krylova, V. N. Markina, G. E. Tereshina, E. N. MigunAbstract:The development of distributed power generation systems as a supplement to the centralized unified power grid increases the operational stability and efficiency of the entire power generation industry and improves the power supply to consumers. An all-regime cogeneration combined-cycle plant with a power of 20–25 mW (PGU-20/25T) and an electrical efficiency above 50% has been developed at the All-Russia Thermal Engineering Institute (ATEI) as a distributed power generation object. The PGU-20/25T two-circuit cogeneration plant provides a wide electrical and thermal power adjustment range and the absence of the mutual effect of electrical and thermal power output regimes at controlled frequency and power in a unified or isolated grid. The PGU-20/25T combined-cycle plant incorporates a gas-turbine unit (GTU) with a power of 16 MW, a Heat Recovery Boiler (HRB) with two burners (before the Boiler and the last Heating stage), and a cogeneration steam turbine with a power of 6/9 MW. The PGU-20/25T plant has a maximum electrical power of 22 MW and an efficiency of 50.8% in the Heat Recovery regime and a maximum thermal power output of 16.3 MW (14 Gcal/h) in the cogeneration regime. The use of burners can increase the electrical power to 25 MW in the steam condensation regime at an efficiency of 49% and the maximum thermal power output to 29.5 MW (25.4 Gcal/h). When the steam turbine is shut down, the thermal power output can grow to 32.6 MW (28 Gcal/h). The innovative equipment, which was specially developed for PGU-20/25T, improves the reliability of this plant and simplifies its operation. Among this equipment are microflame burners in the Heat Recovery Boiler, a vacuum system based on liquid-ring pumps, and a vacuum deaerator. To enable the application of PGU-20/25T in water-stressed regions, an air condenser preventing the Heat-transfer tubes from the risk of covering with ice during operation in frost air has been developed. The vacuum system eliminates the need for an extraneous source of steam for the startup of the PGU-20/25T plant. The vacuum deaerator provides prestartup deaeration and the filling of the entire condensate feed pipeline with deaerated water and also enables the maintenance of the water temperature before the Boiler at a level of no lower than 60°C and the oxygen content at a level of no higher than 10 μg/L during operation under load. The microflame burners in the Heat Recovery Boiler enable the independent adjustment of the electrical power and the thermal power output from the PGU-20/25T plant. All the innovative equipment has been tested on experimental prototypes.