Investigation of Technical and Economic Viability of the 450-MW CCGT Unit’s Operation in the GTU Based CHP Mode

Arakelyan, E. K.; Andryushin, A. V.; Burtsev, Svyatoslav Yu.; Andryushin, K. A.

doi:10.1134/s0040601518120017

Cited by 4 publications

(1 citation statement)

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“…If it is necessary to ensure the rated heat supply, unloading of the electric power of the cogeneration CCGT can be ensured only by switching to the GT based CHPP mode with the steam turbine shutting down or switching it to the motor mode [28]. The disadvantage of the GT based CHPP mode, including when the steam turbine is switched to the motor mode, is the need for capital investments in the modernization of the thermal scheme of the steam turbine and the heating system [29].…”

Section: Comparative Analysis Of the Operating Modes Of The Ccgt-450tmentioning

confidence: 99%

Optimization of schemes and ways to expand the adjustment range for the power supply of combined heat and power plants

Burdenkova,

Garievsky

2023

E3S Web Conf.

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The article assesses the possibility of using low-flow operating modes at steam turbine with an additional boiler and steam and combined-cycle cogeneration plants for heat supply schemes, taking into account the storage properties of heat networks and buildings. It is shown that the use of low-flow operation modes of the turbine plant during the night period allows the combined heat and power plant to participate more effectively in covering the variable part of the electric load schedule. The dependence of the share of participation of an additional boiler in covering the heat load on the prices for fuel and electricity is determined. Comparison of the performance indicators of the steam turbine CHPP in low-flow modes with the release of the thermal energy necessary to the consumer from an additional boiler with the mode of its complete shutdown and the release of thermal energy from the peak hot water boiler made it possible, taking into account the accumulating properties of heat networks and buildings, to recommend a low-flow operation mode at night. For a combined-cycle cogeneration plant it is shown that it is advisable to reduce the electric power at night, while ensuring the nominal heat supply, by unloading the gas turbines with the transfer of the steam turbine to the motor mode.

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Section: Comparative Analysis Of the Operating Modes Of The Ccgt-450tmentioning

confidence: 99%

Optimization of schemes and ways to expand the adjustment range for the power supply of combined heat and power plants

Burdenkova,

Garievsky

2023

E3S Web Conf.

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Development of a system for optimal control of the efficiency and reliability of PGU-450 when operating it in the GTU-CHP mode using digital models and technologies

Arakelyan

Mezin

Andryushin

et al. 2023

Rudenko International Conference “Methodological Problems in Reliability Study of Large Energy Systems” (Rses 2021)

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Improving the PGU-450T Unit’s Maneuverability while Retaining Its Reliability and Economic Efficiency in Variable Load Modes

Arakelyan,

Andryushin,

Pashchenko

et al. 2024

Therm. Eng.

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Investigation of Technical and Economic Viability of the 450-MW CCGT Unit’s Operation in the GTU Based CHP Mode

Cited by 4 publications

References 1 publication

Optimization of schemes and ways to expand the adjustment range for the power supply of combined heat and power plants

Optimization of schemes and ways to expand the adjustment range for the power supply of combined heat and power plants

Development of a system for optimal control of the efficiency and reliability of PGU-450 when operating it in the GTU-CHP mode using digital models and technologies

Improving the PGU-450T Unit’s Maneuverability while Retaining Its Reliability and Economic Efficiency in Variable Load Modes

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