Modeling of radiative properties of an Oxyfuel atmosphere with a weighted sum of gray gases for variable carbon dioxide and water vapor concentrations

Validation of spectral gas radiation models under oxyfuel conditions – Part C: Validation of simplified models

“…The total emissivity for large beam lengths was shown to be different with CFD results from an 609 MW utility boiler in oxyfuel conditions. Rehfeldt et al (2010Rehfeldt et al ( , 2011 implemented the EWB model in 3D CFD calculations and generated a new set of WSGG model parameters based on the EWB model. A variable for the molar ratio of H 2 O/CO 2 was used resulting in a model applicable for most industrial oxyfuel processes.…”

Application of the steady flamelet model on a lab-scale and an industrial furnace for different oxygen concentrations

“…Validation of the new WSGGM coefficients was done by comparison with an EWBM (exponential wide band model) [43] which were in close agreement for the air-fired and oxy-fuel cases. Further WSGG model parameters for oxy-fuel combustion were proposed by Johansson et al [44,45], Bordbar et al [46], Rehfeldt et al [47], Kangwanpongpan et al [48] and Krishnamoorthy [49].…”

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

“…In a second paper, Krishnamoorthy et al [21] improved the WSGG model based on the SNB model RADCAL. Rehfeldt et al [22] obtained the new parameters of WSGG model based on the EWB model. The 3D simulation results showed that the wall heat flux was reduced by up to 15% for both oxy-fuel and air combustion if the gas radiation was neglected.…”