WSGG correlations based on HITEMP2010 for gas mixtures of H2O and CO2 in high total pressure conditions

Coelho, Felipe Ramos; França, Francis

doi:10.1016/j.ijheatmasstransfer.2018.07.075

Cited by 43 publications

(21 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The discrete ordinate method (DOM) was used to solve the radiative heat transfer equation to obtain the radiative heat sources for two different cases. The profiles of temperature and mole fraction of CO and CH 4 are similar to [12,32] and were detailed in Tab.1. The Planck mean absorption coefficients at temperatures ranging from 300 K to 1500 K with an interval of 100 K were obtained.…”

Section: Resultsmentioning

confidence: 85%

See 1 more Smart Citation

Effect of pressure broadening on the radiative heat transfer by CO and CH4 gases using line-by-line method with latest high-temperature database

Yang

Zheng

et al. 2022

THERM SCI

View full text Add to dashboard Cite

As the development of current propulsion technology such as gas turbine and rocket chamber moving to higher working pressure, the radiative parameters of fuel, such as CH4or CO, are required at elevated pressures, which in some cases are calculated without considering the pressure effect of line broadening. To investigate the pressure effect of line broadening on the radiative heat transfer, the radiative heat sources of a one-dimensional enclosure filled with CH4/CO and Planck mean absorption coefficients at elevated pressures were calculated using the statistical narrow band(SNB)and line by line (LBL)methods. The radiative parameters were conducted using high-temperature molecular spectroscopic(HITEMP)2019 (for CO) and HITEMP 2020 (for CH4) databases. The results showed that the pressure effect of line broadening on the calculations of radiative heat source of CH4can be ignored when HITEMP 2020 database was used. For CO medium, the pressure effect of line broadening was over 40% at 30 atm in all cases whichever methods and databases were used. The pressure broadening has a strong effect on the Planck mean absorption coefficient below 1000 K for CH4 and at the temperature of 500-900K for CO at 30 atm. The maximum pressure effects were 22% for CH4 and 18% for CO at 30 atm, which illustrated the pressure effect of line broadening needed to be taken into account in the calculation of Planck mean absorption coefficient.

show abstract

Section: Resultsmentioning

confidence: 85%

“…At present, many researchers have studied the gas radiation for elevated pressure [11,12]. The absorption line blackbody distribution function (ALBDF) and radiative heat transfer of H 2 O and CO 2 in variable pressures had been calculated [13].…”

Section: Introductionmentioning

confidence: 99%

Effect of pressure broadening on the radiative heat transfer by CO and CH4 gases using line-by-line method with latest high-temperature database

Yang

Zheng

et al. 2022

THERM SCI

View full text Add to dashboard Cite

show abstract

“…The RTE is solved with the discrete ordinates method, following the methodology and discretization parameters outlined in [6]. The reference solution, to which all WSGGMs are compared, is provided via the LBL integration method as described in [20].…”

Section: Resultsmentioning

confidence: 99%

An extended weighted-sum-of-gray-gases model to account for all CO2 ‐ H2O molar fraction ratios in thermal radiation

Bordbar

Fraga

Hostikka

2020

International Communications in Heat and Mass Transfer

View full text Add to dashboard Cite

“…7 and 8) is applied to determine the WSGG parameters for the gas/soot mixture. The WSGG parameters for the H2O/CO2 mixtures were also generated based on the database of Pearson [20], using a similar methodology to the one from [23]. The number of RTEs to solve is then reduced by a factor of 5 as compared to the WSGGSP approach with = ( + 1) × with = = 4.…”

Section: H O Comentioning

confidence: 99%

Assessment of engineering gas radiative property models in high pressure turbulent jet diffusion flames

Consalvi

André

Coelho

et al. 2020

Journal of Quantitative Spectroscopy and Radiative Transfer

View full text Add to dashboard Cite

This article aims to determine the most relevant engineering global method for gas radiative property modeling to be applied in the simulations of combustion problems. Two versions of the full-spectrum correlated k (FSCK) model, the Rank-Correlated full-spectrum k-distribution/ Spectral-Line-Weighted-sum-of-gray-gases (RC-FSK/RC-SLW) and a new version of the Weighted-Sum-of-Grey-Gases (WSGG) model are compared with the Narrow-Band CK (NBCK) model in four turbulent axisymmetric jet diffusion flames fueled either by hydrogen or methane at atmospheric and higher pressures. These comparisons are performed in decoupled radiative heat transfer calculations with the thermal fields being prescribed. The databases and coefficients associated to these different models are determined from a unique Line-By-Line database in order to allow a relevant comparison. Model results suggest that the SLW/FSCK methods coupled to the so-called improved scheme proposed by Cai and Modest or the Rank-Correlated SLW/FSK model, along with k-g distributions generated from accurate high-resolution high-temperature databases are the most mature gas radiative property models to be implemented in CFD codes dealing with combustion problems involving gassoot mixtures.

show abstract

WSGG correlations based on HITEMP2010 for gas mixtures of H2O and CO2 in high total pressure conditions

Cited by 43 publications

References 33 publications

Effect of pressure broadening on the radiative heat transfer by CO and CH4 gases using line-by-line method with latest high-temperature database

Effect of pressure broadening on the radiative heat transfer by CO and CH4 gases using line-by-line method with latest high-temperature database

An extended weighted-sum-of-gray-gases model to account for all CO2 ‐ H2O molar fraction ratios in thermal radiation

Assessment of engineering gas radiative property models in high pressure turbulent jet diffusion flames

Contact Info

Product

Resources

About