Publication detail

Wall heat fluxes in swirling combustion of extra-light fuel-oil in large-scale test combustor: experiment and modeling using eddy dissipation model

BROUKAL, J. HÁJEK, J.

Czech title

Tepelné toky do stěn ve vířivém spalování extra lehkého topného oleje ve zkušebně na průmysové hořáky: Experiment a modelování pomocí Eddy Dissipation modelu

English title

Wall heat fluxes in swirling combustion of extra-light fuel-oil in large-scale test combustor: experiment and modeling using eddy dissipation model

Type

journal article - other

Language

en

Original abstract

This paper presents a preliminary study which aims to compare wall heat fluxes in swirling combustion of fuel-oil in large-scale combustor obtained both by experimental measurement and computer simulation. Prediction of wall heat fluxes is of crucial importance when designing industrial furnaces. The first part of the paper presents the experimental facilities and the method used to gather and analyze the measured data. In the second part a Computational Fluid Dynamics (CFD) simulation of the spray combustion is performed. The liquid phase is modelled using Discrete Phase Model (DPM) and the flow is solved by Reynolds-averaged Navier-Stokes (RANS) models. Various submodels are used to account for turbulence, radiation, fuel atomization and evaporation. The obtained results, i.e. means of wall heat fluxes, are finally compared with the experimental data and deviations together with possible explanations and improvements are discussed. Results show discrepancies which need to be addressed in future research.

Czech abstract

Práce se zabývá porovnáním tepelných toků do stěn ve vířivém spalování extra lehkého topného oleje ve zkušebně na průmysové hořáky. Experimentální výsledky jsou srovnávány s výsledky získanými z CFD simulací pomocí jednoduchého chemického modelu Eddy Dissipation. Rozprášení extra lehkého topného oleje je popsáno pomocí Discrete Phase Model a výsledné proudění je dosaženo použitím RANS řešiče.

English abstract

This paper presents a preliminary study which aims to compare wall heat fluxes in swirling combustion of fuel-oil in large-scale combustor obtained both by experimental measurement and computer simulation. Prediction of wall heat fluxes is of crucial importance when designing industrial furnaces. The first part of the paper presents the experimental facilities and the method used to gather and analyze the measured data. In the second part a Computational Fluid Dynamics (CFD) simulation of the spray combustion is performed. The liquid phase is modelled using Discrete Phase Model (DPM) and the flow is solved by Reynolds-averaged Navier-Stokes (RANS) models. Various submodels are used to account for turbulence, radiation, fuel atomization and evaporation. The obtained results, i.e. means of wall heat fluxes, are finally compared with the experimental data and deviations together with possible explanations and improvements are discussed. Results show discrepancies which need to be addressed in future research.

Keywords in Czech

CFD, tepelné toky do stěn, extra lehký topný olej, sprej, spalování

Keywords in English

CFD, wall heat fluxes, extra-light fuel-oil, spray combustion

RIV year

2010

Released

28.08.2010

Publisher

AIDIC Servizi S.r.l.

Location

Milano, Italy

ISSN

1974-9791

Volume

21

Number

2

Pages from–to

1111–1116

Pages count

6

BIBTEX


@article{BUT49826,
  author="Jakub {Broukal} and Jiří {Hájek},
  title="Wall heat fluxes in swirling combustion of extra-light fuel-oil in large-scale test combustor: experiment and modeling using eddy dissipation model",
  year="2010",
  volume="21",
  number="2",
  month="August",
  pages="1111--1116",
  publisher="AIDIC Servizi S.r.l.",
  address="Milano, Italy",
  issn="1974-9791"
}