Specification of NOx emissions from combustion of lignites in a BFBC

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Specification of NOx emissions from combustion of lignites in a BFBC

Popis výsledku v původním jazyce

This paper presents experimental results for identification of the effect of a bubbling fluidized bed combustor operational parameters on the fuel N to NO conversion factor. The tested fuels were two kinds of lignite coal having different volatiles and Ndaf content. Tested parameters were oxygen concentration in the bed, bed temperature, degree of air staging and fluidization velocity. The more volatile coal has the higher N to NO conversion factor, despite the lower Ndaf content in comparison with the second sort of coal. The more volatile coal is more sensitive towards the changes in the tested parameters, typically in magnitude of multiples. The oxygen concentration in the bed is the most affecting factor on N to NO conversion factor for the less volatile coal. The bed temperature has the strongest effect on the N to NO conversion factor for the higher volatile coal. The higher volatility also corresponds to the stronger effect of air staging on reducing of the N conversion and there is also stronger effect of temperature and oxygen concentration compared to the coal with lower content of volatiles.

Název v anglickém jazyce

Specification of NOx emissions from combustion of lignites in a BFBC

Popis výsledku anglicky

This paper presents experimental results for identification of the effect of a bubbling fluidized bed combustor operational parameters on the fuel N to NO conversion factor. The tested fuels were two kinds of lignite coal having different volatiles and Ndaf content. Tested parameters were oxygen concentration in the bed, bed temperature, degree of air staging and fluidization velocity. The more volatile coal has the higher N to NO conversion factor, despite the lower Ndaf content in comparison with the second sort of coal. The more volatile coal is more sensitive towards the changes in the tested parameters, typically in magnitude of multiples. The oxygen concentration in the bed is the most affecting factor on N to NO conversion factor for the less volatile coal. The bed temperature has the strongest effect on the N to NO conversion factor for the higher volatile coal. The higher volatility also corresponds to the stronger effect of air staging on reducing of the N conversion and there is also stronger effect of temperature and oxygen concentration compared to the coal with lower content of volatiles.

Druh

D - Stať ve sborníku

CEP obor

JE - Nejaderná energetika, spotřeba a užití energie

OECD FORD obor

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Projekt

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Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings Thirty-Second Annual International Pittsburgh Coal Conference

ISBN

1-890977-32-2

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

-1

Název nakladatele

University of Pittsburgh

Místo vydání

Pittsburgh

Místo konání akce

Pittsburgh

Datum konání akce

5. 10. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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