A new development for the WBW model at elevated pressure levels

RJC da Fonseca, GC Fraga, F Asllanaj… - Journal of Quantitative …, 2024 - Elsevier
This paper proposes an approach to obtain correlations for high pressure conditions for the
weighted-sum-of-gray-gases (WSGG) model. The proposed formulation, which extends the …

Effects of radiation modeling on non-premixed sooting flames simulations under oxyfuel conditions

CA Hoerlle, FHR França, PR Pagot, FM Pereira - Combustion and Flame, 2020 - Elsevier
Radiative heat modeling has a central role for the simulation of soot formation in flames.
Radiation heat transfer, gas-phase chemistry and soot formation are strongly coupled and …

[HTML][HTML] Weighted-sum-of-gray-gases models for non-gray thermal radiation of hydrocarbon fuel vapors, CH4, CO and soot

H Sadeghi, S Hostikka, GC Fraga, H Bordbar - Fire Safety Journal, 2021 - Elsevier
Using the high-resolution experimental spectral absorption coefficients of six fuel gases and
the line by line absorption spectra of CO and CH 4 based on HITRAN and HITEMP spectral …

Improvement of the efficiency of the superposition method applied to the WSGG model to compute radiative transfer in gaseous mixtures

RM da Silva, GC Fraga, FHR França - … Journal of Heat and Mass Transfer, 2021 - Elsevier
A new method for the treatment of radiative heat transfer in mixtures of participating species
in the framework of the weighted-sum-of-gray-gases (WSGG) model is proposed, based on …

Experimental study on flame temperature distribution and pollutant emission characteristics of CH4 mixed with CO2/N2/H2 combustion

H Yang, S Jin, Y He, Y Liu - International Journal of Hydrogen Energy, 2024 - Elsevier
Excessive NO x and CO 2 emissions pose a significant challenge in the clean combustion of
natural gas, which is expected to be solved through the combination of exhaust gas …

Experimental study of radiative heat transfer from laminar non-premixed methane flames diluted with CO2 and N2

IM Machado, P Pagot, FM Pereira - International Journal of Heat and Mass …, 2020 - Elsevier
This paper presents an experimental study about the effect of fuel dilution with inert gases
on the radiative heat transfer characteristics of laminar non-premixed coflow methane …

Parametrical study on spectral radiation characteristics of solid fuel combustion medium for energy cascade utilization

X Wang, S Shan, B Zhang, G Jin, J Yu, Z Zhou - Fuel, 2024 - Elsevier
From the perspective of cascade utilization of photo-thermal energy, this study investigated
the effects of parameter variables including pressure, temperature, particle size and number …

A new line-by-line methodology based on the spectral contributions of the bands

FR Coelho, A Ziemniczak, SP Roy… - International Journal of …, 2021 - Elsevier
This study presents a new methodology to solve thermal radiation in participating gases, the
spectrally reduced integration (SRI), which employs a non-uniform spectral discretization to …

Comparison between numerical and experimental data of the radiative heat transfer in a natural gas/CO2/H2 turbulent flame

LD Lemos, LAQ Llanos, FM Pereira, FR Centeno… - Fuel, 2020 - Elsevier
Accurate computation of the radiative heat flux emitted by turbulent flames involves the
challenging modeling of turbulence-radiation interactions (TRI). This study considers a non …

Heat transfer simulation in an industrial furnace firing natural gas and pure oxygen for production of ceramic frits

EM Filho, V de Paulo Nicolau, LO Seman… - Journal of the Brazilian …, 2023 - Springer
This study covers the thermal simulation of an industrial furnace used to produce ceramic
frits, a material requested for glazes and coatings of tiles and porcelains. The current …