Effect of the swirl on toxic CO andCO₂ gases in combustion chamber /
Qasim Abdullah Najm
Effect of the swirl on toxic CO andCO₂ gases in combustion chamber / تأثير الدوامات على غازات اول وثاني اوكسيد الكربون السامه في غرفة الاحتراق Qasim Abdullah Najm ; Supervised Essam E. Khalil , Hatem Omer Haridy , Esmail Mohamed Ali - Cairo : Qasim Abdullah Najm , 2015 - 89 P. : charets , facsimiles ; 30cm
Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Mechanical Power Engineering
This thesis presents a numerical Investigation of flow regimes and turbulent mixing in turbulent reacting swirling 3-D furnace flows. This thesis presents a developed Computational Fluid Dynamics (CFD) program FLUENT (15) to predict the non-premixed air and the fuel (CH4) flame characteristics in a combustion chamber. The swirling numbers 0 , 0.1 , 0.2 , 0.3 , 0.4 , 0.5 and 0.6 were selected to study the effect on the flame characteristics, like Temperature , Velocity, and mass of CH₄ and H₂O focusing on toxic gases CO and CO₂. A different turbulence and reaction models has been studied. It can be concluded that the standard type of K-f model of turbulence and flamlet model of combustion gave the best agreement with experimental results. Choosing a different swirl number will show the fluid dynamics behaviour of natural gas diffusion flame and the effective of change the swirl number on most of the above mentioned vectors.It can be noticed that CO₂ increases with increasing the swirl number when the swirl number is less than one. Whereas CO decreases with increasing the swirl number and it reached to maximum value at the first half of the combustor and finally returns to minimum value at near the exit plan
CFD Combustion chamber Turbulence
Effect of the swirl on toxic CO andCO₂ gases in combustion chamber / تأثير الدوامات على غازات اول وثاني اوكسيد الكربون السامه في غرفة الاحتراق Qasim Abdullah Najm ; Supervised Essam E. Khalil , Hatem Omer Haridy , Esmail Mohamed Ali - Cairo : Qasim Abdullah Najm , 2015 - 89 P. : charets , facsimiles ; 30cm
Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Mechanical Power Engineering
This thesis presents a numerical Investigation of flow regimes and turbulent mixing in turbulent reacting swirling 3-D furnace flows. This thesis presents a developed Computational Fluid Dynamics (CFD) program FLUENT (15) to predict the non-premixed air and the fuel (CH4) flame characteristics in a combustion chamber. The swirling numbers 0 , 0.1 , 0.2 , 0.3 , 0.4 , 0.5 and 0.6 were selected to study the effect on the flame characteristics, like Temperature , Velocity, and mass of CH₄ and H₂O focusing on toxic gases CO and CO₂. A different turbulence and reaction models has been studied. It can be concluded that the standard type of K-f model of turbulence and flamlet model of combustion gave the best agreement with experimental results. Choosing a different swirl number will show the fluid dynamics behaviour of natural gas diffusion flame and the effective of change the swirl number on most of the above mentioned vectors.It can be noticed that CO₂ increases with increasing the swirl number when the swirl number is less than one. Whereas CO decreases with increasing the swirl number and it reached to maximum value at the first half of the combustor and finally returns to minimum value at near the exit plan
CFD Combustion chamber Turbulence