Trough Air Distributor for a Bubbling Fluidized Bed Boiler with Isobaric Nozzles

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F15%3A00235378" target="_blank" >RIV/68407700:21220/15:00235378 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Trough Air Distributor for a Bubbling Fluidized Bed Boiler with Isobaric Nozzles

Popis výsledku v původním jazyce

The paper deals with a technical solution, which was made in order to decrease the bed temperature in an industrial fluidized bed boiler that operates at temperatures 1050-1100°C. The main motivation for that was to allow co-firing of coal and biomass and to reduce emissions of NOx by means of decreasing volumetric thermal load of the bed. This can be done by increasing the bed height that is limited by primary air fan capacity, however. The focus is therefore put on reducing of the pressure drop of the trough air distributor by introducing isobaric air nozzles with adjustable pressure drop. Identification of the current state of the air distributor with wrongly designed nozzles and results of laboratory experiments with adjusting pressure drop control cones for the new air distributor are shown in the paper. As the result, the pressure drop of the distributor was decreased by about 1.7 kPa which allowed increase of the bed height by about 20 cm. This corresponds to a reduction of the volumetric thermal load by approx. 2 MW/m3.

Název v anglickém jazyce

Trough Air Distributor for a Bubbling Fluidized Bed Boiler with Isobaric Nozzles

Popis výsledku anglicky

The paper deals with a technical solution, which was made in order to decrease the bed temperature in an industrial fluidized bed boiler that operates at temperatures 1050-1100°C. The main motivation for that was to allow co-firing of coal and biomass and to reduce emissions of NOx by means of decreasing volumetric thermal load of the bed. This can be done by increasing the bed height that is limited by primary air fan capacity, however. The focus is therefore put on reducing of the pressure drop of the trough air distributor by introducing isobaric air nozzles with adjustable pressure drop. Identification of the current state of the air distributor with wrongly designed nozzles and results of laboratory experiments with adjusting pressure drop control cones for the new air distributor are shown in the paper. As the result, the pressure drop of the distributor was decreased by about 1.7 kPa which allowed increase of the bed height by about 20 cm. This corresponds to a reduction of the volumetric thermal load by approx. 2 MW/m3.

Druh

D - Stať ve sborníku

CEP obor

JE - Nejaderná energetika, spotřeba a užití energie

OECD FORD obor

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Projekt

<a href="/cs/project/TA04020180" target="_blank" >TA04020180: Výzkum a vývoj pokročilého kotle pro využití rostlinných paliv</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the 22nd International Conference on Fluidized Bed Conversion

ISBN

978-952-12-3222-0

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

109-114

Název nakladatele

Abo Akademi University

Místo vydání

Turku

Místo konání akce

Turku

Datum konání akce

14. 6. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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