Numerical Modeling of Oxygen Enhanced Combustion and Transient Heating Characteristics in a Reheating Furnace

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F15%3APU116710" target="_blank" >RIV/00216305:26210/15:PU116710 - 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

Numerical Modeling of Oxygen Enhanced Combustion and Transient Heating Characteristics in a Reheating Furnace

Popis výsledku v původním jazyce

In this work an experimental and numerical investigation of oxygen enhanced combustion (OEC) was done for different oxygen concentrations on a 750 kW lab-scale furnace. Temperatures in the furnace and heat fluxes to the walls were measured and used to validate the CFD model especially the chemical reaction mechanism for applicability in OEC. Flame temperature and shape were in good agreement as well as the heat fluxes to the walls for all combustion cases. An increase of the furnace efficiency was determined from 61% for combustion with air and 73.4% for OEC with an O2 concentration of 30.8vol% in the oxidizer. The same trend was predicted by the numerical simulations. Additionally an industrial walking hearth furnace to reheat steel billets was simulated by the CFD model for air-fuel and OEC with an enrichment level of 25vol% O2. Furnace operation revealed a fuel saving of 8% compared to the air case. The transient simulation of the billets showed that the similar billet surface temperature was achie

Název v anglickém jazyce

Numerical Modeling of Oxygen Enhanced Combustion and Transient Heating Characteristics in a Reheating Furnace

Popis výsledku anglicky

In this work an experimental and numerical investigation of oxygen enhanced combustion (OEC) was done for different oxygen concentrations on a 750 kW lab-scale furnace. Temperatures in the furnace and heat fluxes to the walls were measured and used to validate the CFD model especially the chemical reaction mechanism for applicability in OEC. Flame temperature and shape were in good agreement as well as the heat fluxes to the walls for all combustion cases. An increase of the furnace efficiency was determined from 61% for combustion with air and 73.4% for OEC with an O2 concentration of 30.8vol% in the oxidizer. The same trend was predicted by the numerical simulations. Additionally an industrial walking hearth furnace to reheat steel billets was simulated by the CFD model for air-fuel and OEC with an enrichment level of 25vol% O2. Furnace operation revealed a fuel saving of 8% compared to the air case. The transient simulation of the billets showed that the similar billet surface temperature was achie

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/TE02000236" target="_blank" >TE02000236: Centrum kompetence pro energetické využití odpadů</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 Australian Combustion Symposium

ISBN

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ISSN

1839-8162

e-ISSN

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Počet stran výsledku

4

Strana od-do

1-4

Název nakladatele

Neuveden

Místo vydání

Neuveden

Místo konání akce

Melbourne

Datum konání akce

7. 12. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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