MINIMIZATION OF TOXIC EMISSIONS DURING BURNING LOW-GRADE FUEL AT KAZAKHSTAN THERMAL POWER PLANT
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F20%3A00346107" target="_blank" >RIV/68407700:21220/20:00346107 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.14311/AP.2020.60.0206" target="_blank" >https://doi.org/10.14311/AP.2020.60.0206</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.14311/AP.2020.60.0206" target="_blank" >10.14311/AP.2020.60.0206</a>
Alternative languages
Result language
angličtina
Original language name
MINIMIZATION OF TOXIC EMISSIONS DURING BURNING LOW-GRADE FUEL AT KAZAKHSTAN THERMAL POWER PLANT
Original language description
This paper presents new results of computational experiments on the implementation of Overfire Air (OFA) technologies using an example of a combustion chamber of the BKZ-75 boiler of the Shakhtinskaya power plant (Shakhtinsk, Kazakhstan) burning high-ash Karaganda coal. The effect of mass air flow through special nozzles located above the burner level on the flow aerodynamics, temperature fields, concentration fields of carbon monoxide CO and nitrogen NO over the entire volume of the combustion chamber was studied. The studied characteristics were compared for various percentages of supplying additional air through OFA injectors: OFA is 0 % (basic version), 10 % and 18 %. It was shown that the installation of OFA injectors leads to a change in the field of the total velocity vector, temperature, and concentrations of carbon oxides and nitrogen. An increase in the percentage of air supplied through OFA injectors to 18 % leads to a decrease in the concentrations of carbon monoxide CO by about 36 % and nitrogen oxide NO by 25 % compared with the base case. The obtained results will optimize the process of burning pulverized fuel in the combustion chamber of the BKZ-75 boiler, increase the efficiency of fuel burnout, reduce harmful emissions and introduce OFA-technology at other coal-burning thermal power plants.
Czech name
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Czech description
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Classification
Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
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OECD FORD branch
20303 - Thermodynamics
Result continuities
Project
—
Continuities
O - Projekt operacniho programu
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Acta Polytechnica
ISSN
1210-2709
e-ISSN
1805-2363
Volume of the periodical
60
Issue of the periodical within the volume
3
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
8
Pages from-to
206-213
UT code for WoS article
000565219200003
EID of the result in the Scopus database
2-s2.0-85090715182