Monte Carlo Simulation for Radiative Transfer in a High-Pressure Industrial Gas Turbine Combustion Chamber

Ren, Tao; Modest, Michael F.; Roy, S.C.

doi:10.1115/1.4038153

Cited by 22 publications

(8 citation statements)

References 35 publications

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“…Early coupled simulations using Reynolds average Navier-Stokes (RANS) include the studies of diffusion jet flames of Tessé et al [33] who pointed out the important role of soot particles in global radiative loss; and the work of Li and Modest [34] in which was found that TRI reduces the total drop in flame peak temperature caused by radiative heat losses. Additionally, a recent RANS coupled simulation in a high-pressure gas turbine combustion chamber was reported by Ren et al [35].…”

Section: Introductionmentioning

confidence: 99%

Scaling of heated plane jets with moderate radiative heat transfer in coupled DNS

Armengol

Vicquelin

Coussement

et al. 2019

International Journal of Heat and Mass Transfer

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The effects of thermal radiation in a heated jet of water vapor are studied with a direct numerical simulation coupled to a Monte-Carlo solver. The adequacy of the numerical setup is first demonstrated in the uncoupled isothermal and heated turbulent plane jets with comparisons to experimental and numerical data. Radiative energy transfer is then accounted for with spectral dependency of the radiative properties described by the Correlated-k (ck) method. Between the direct impact through modification of the temperature field by the additional radiative transfer and the indirect one where the varied flow density changes the turbulent mixing, the present study is able to clearly identify the second one in the jet developed region by considering conditions where effects of thermal radiation are moderate. When using standard jet scaling laws, the different studied cases without radiation and with small-to-moderate radiative heat transfer yield different profiles even when thermal radiation becomes locally negligible. By deriving another scaling law for the decay of the temperature profile, self-similarity is obtained for the different turbulent jets. The results of the study allow for distinguishing whether thermal radiation modifies the nature of heat transfer mechanisms in the jet developed region or not while removing the indirect effects of modified density.

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Section: Introductionmentioning

confidence: 99%

Scaling of heated plane jets with moderate radiative heat transfer in coupled DNS

Armengol

Vicquelin

Coussement

et al. 2019

International Journal of Heat and Mass Transfer

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“…The LSQCURVEFIT function in Matlab has been used for the curve fitting of absorption coefficients and weighting factor with different pressures, mole ratios, and temperatures. The absorption coefficient depends on pressure P, mole ratio MR, and normalized temperature defined as T/T ref , as shown in Equation (6).…”

Section: Pressurized Wsgg Modelmentioning

confidence: 99%

“…Computational fluid dynamics (CFD) simulation depends on reliable models, [5][6][7][8][9] which is of great importance for the study of pressurized oxy-fuel combustion. Due to the elevated pressure and CO 2 -rich environments, many submodels based on atmospheric combustion development are no longer suitable for pressurized oxy-fuel combustion, especially for radiative property models.…”

Section: Introductionmentioning

confidence: 99%

A full spectrum k ‐distribution‐based weighted‐sum‐of‐gray‐gases model for pressurized oxy‐fuel combustion

et al. 2020

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Summary Pressurized oxy‐fuel combustion is expected to increase combustion efficiency and substantially reduce costs of carbon capture. The gas radiative property in pressurized oxy‐fuel combustion is significantly different from atmospheric oxy‐fuel combustion and the air‐fuel combustion. In this study, an extension and improvement to previous weighed sum of gray gases (WSGG) model have been provided for pressurized oxy‐fuel combustion, based on the latest implementation for the correlated k‐values. The model is valid for the pressure between 1 and 30 bar, temperature between 600 and 2500 K, and mole ratio of H2O to CO2 between 0.05 and 4.0. The new pressurized WSGG model is extensively validated using the line‐by‐line solution with HITEMP 2010 database, in terms of the gas emissivity and radiative source term. The average relative error of radiative source term is less than 8% in non‐isothermal inhomogeneous gas mixture at elevated pressures. The results of radiative heat flux on the wall show that the heat transfer efficiency in non‐isothermal condition is much lower than that in isothermal condition beyond the pressure path length of 10 bar·m, due to the self‐absorption of the gas mixture.

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“…However, for the combustion in gasifiers [7] or gas turbine combustion chambers [8], the reaction pressure is much higher than atmospheric pressure. For example, the Bioliq gasifier [9] produced syngas from a biomass feedstock at a pressure of 40 atm and an industrial gas turbine burner [10] with 5 MW output operated at a pressure of 15 atm. Numerical simulations of such a gasifier or gas turbine require radiative parameters of participating medium at elevated pressures.…”

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

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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.

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Monte Carlo Simulation for Radiative Transfer in a High-Pressure Industrial Gas Turbine Combustion Chamber

Cited by 22 publications

References 35 publications

Scaling of heated plane jets with moderate radiative heat transfer in coupled DNS

Scaling of heated plane jets with moderate radiative heat transfer in coupled DNS

A full spectrum k ‐distribution‐based weighted‐sum‐of‐gray‐gases model for pressurized oxy‐fuel combustion

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

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