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Huang, X. (author), Tummers, M.J. (author), van Veen, E.H. (author), Roekaerts, D.J.E.M. (author)
The flamelet generated manifold (FGM) model is suitable for moderate or intense low oxygen dilution (MILD) combustion provided the flamelets underlying the manifold include the effects of strong dilution by products of the fuel/oxidizer mixture. Here we propose such an extended model based on the use of non-premixed flamelets diluted at the...
journal article 2022
document
Romero-Anton, Naiara (author), Huang, X. (author), Bao, Hesheng (author), Martin-Eskudero, Koldo (author), Salazar-Herran, Erik (author), Roekaerts, D.J.E.M. (author)
Flameless combustion, also called MILD combustion (Moderate or Intense Low Oxygen Dilution), is a technology that reduces NO<sub>x</sub> emissions and improves combustion efficiency. Appropriate turbulence-chemistry interaction models are needed to address this combustion regime via computational modelling. Following a similar analysis to...
journal article 2020
document
Huang, X. (author), van Veen, E.H. (author), Tummers, M.J. (author), Roekaerts, D.J.E.M. (author)
abstract 2018
document
Ma, L. (author), Huang, X. (author), Roekaerts, D.J.E.M. (author)
We report results of a computational study of oxy-fuel spray jet flames. An experimental database on flames of ethanol burning in a coflow of a O2–CO2 mixture, created at CORIA (Rouen, France), is used for model validation (Cléon et al., 2015). Depending on the coflow composition and velocity the flames in these experiments start at nozzle (type...
journal article 2017
document
Huang, X. (author), Tummers, M.J. (author), Roekaerts, D.J.E.M. (author)
Flameless combustion, named as Moderate or Intense Low-oxygen Dilution (MILD) combustion or high-temperature air combustion (HiTAC), is a promising technology to improve the thermal efficiency while suppressing NOx formation in combustion systems. Flameless combustion can occur when fresh air (and/or fuel)...
abstract 2017
document
Huang, X. (author), Tummers, M.J. (author), Roekaerts, D.J.E.M. (author)
Mild combustion in a lab-scale furnace has been experimentally and numerically studied. The furnace was operated with Dutch natural gas (DNG) at 10 kW and at an equivalence ratio of 0.8. OH∗chemiluminescence images were taken to characterize the reaction zone. The chemiluminescence intensity is relatively low compared to conventional flames...
conference paper 2017
document
Bao, H. (author), Huang, X. (author), Roekaerts, D.J.E.M. (author)
The Delft Jet-in Hot Coflow (DJHC) burner is used to investigate flameless combustion by imitating the recirculation flow characteristics appearing in a real complex furnace via a hot diluted coflow[1]. A welldefined stream of high temperature, low oxygen concentration combustion products is injected around the...
abstract 2016
document
Roekaerts, D.J.E.M. (author), Bao, H. (author), Huang, X. (author), Vasavan, A. (author), van Oijen, J.A. (author), Labahn, J. (author), Devaud, C. (author)
We report on a comparative study of model predictions of jet-in-hot-coflow flames. TheDelft Jet-in-Hot- Coflow (DJHC) burner was built to mimic the important characteristics of flameless combustion without the complications of a real furnace [1,2]. The DJHC burner has been used to create a turbulent diffusion...
abstract 2016
document
Huang, X. (author), Tummers, M.J. (author), Roekaerts, D.J.E.M. (author)
Mild combustion in a lab-scale furnace has been experimentally and numerically studied. The furnace was operated with Dutch natural gas (DNG) at 10 kW and at an equivalence ratio of 0.8. OH∗chemiluminescence images were taken to characterize the reaction zone. The chemiluminescence intensity is relatively low compared to conventional flames...
abstract 2016
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