The Ways to Improve the Efficiency of Binary Cogeneration Plant Operation by Use Additional of the Exit-Gas Heat Behind the Recovery Boiler

The exit-gas temperature behind the recovery boiler depends on the location, climate conditions, operation modes of the gas and steam turbine equipment at the combined-cycle cogeneration plant and can be slightly higher than the minimum admissible value. It leads to emergence of additional of exit-g...

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Bibliographic Details
Published in:Journal of physics. Conference series 2017-10, Vol.891 (1), p.12203
Main Author: Novichkov, S V
Format: Article
Language:English
Subjects:
Boilers
Chemical treatment
Cogeneration
Combined cycle power generation
District heating
Gas temperature
Heat recovery
Physics
Power plants
Profitability
Steam electric power generation
Steam turbines
Water heating
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Summary:The exit-gas temperature behind the recovery boiler depends on the location, climate conditions, operation modes of the gas and steam turbine equipment at the combined-cycle cogeneration plant and can be slightly higher than the minimum admissible value. It leads to emergence of additional of exit-gas heat behind the recovery boiler. However the high-grade heat of the steam turbine extraction not only for own flows needs but also system water is used for heating. It reduces profitability of work of all power plants. The ways of use of the additional of the exit-gas heat behind the recovery boiler system water heating and chemically treated water of district heating makeup heating are offered. It leads to production the extra power by steam turbine and to improve the efficiency of binary combined-cycle cogeneration plant operation.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/891/1/012203