The effect of parallel hot windbox repowering on 387 MW fossil fuel power plant

Artur Harutyunyan , Krzysztof Badyda , Marcin Wołowicz


The paper presents the concept of repowering in existing power plant. Among technologies for existing steam power plants, the hot windbox repowering is the fastest way to respond to the energy demand, improve efficiency and reduce the pollutants emissions. Thermodynamic analysis of power plant model with fossil boiler before and after hot windbox repowering, has been investigated using commercial software. The purpose of this work is to understand and analyze the effect of hot windbox repowering on 387 MW fossil fuel power plant as well as the effect of additional heat exchangers, which have been installed parallel with regeneration system to use the heat of boiler exhaust gases. In this way, after repowering the summary power of power plant in base load is 615 MW, which has been reached adding gas turbine (176.9 MW). To analyze the model, calculations were performed in 3 stages: 1) calculation and comparison of the thermodynamic parameters as well as carbon dioxide emissions of power plant model before and after repowering, 2) analysis of the optimal value of feed water mass flow through heat exchangers installed after economizer, 3) calculation of thermodynamic parameters in values 100%, 90%, 80% and 75% of fossil boiler heat loads.
Author Artur Harutyunyan (FPAE / IHE)
Artur Harutyunyan,,
- The Institute of Heat Engineering
, Krzysztof Badyda (FPAE / IHE)
Krzysztof Badyda,,
- The Institute of Heat Engineering
, Marcin Wołowicz (FPAE / IHE)
Marcin Wołowicz,,
- The Institute of Heat Engineering
Journal seriesTransactions of the Institute of Fluid-Flow Machinery, ISSN 0079-3205
Issue year2016
Publication size in sheets0.8
Keywords in Englishcombined cycle power plant fossil boiler hot windbox repowering CO2 emissions
Languageen angielski
Transactions_131_2016 prof.Badyda.pdf 783.84 KB
Score (nominal)7
Score sourcejournalList
ScoreMinisterial score = 7.0, 12-01-2020, ArticleFromJournal
Ministerial score (2013-2016) = 7.0, 12-01-2020, ArticleFromJournal
Publication indicators GS Citations = 3.0
Citation count*3 (2020-07-21)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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