NUMERICAL MODELLING OF INFLUENCE DEGREE OF TURBULENCE IN THE COMBUSTION CHAMBER
1Al-Farabi Kazakh National University 1, Almaty, Kazakhstan,
2Al-Farabi Kazakh National University 2, Almaty,Kazakhstan
e-mail addresses: email@example.com
Figure1- Comparison maximum concentration of CO along the combustion chamber for two degrees of turbulence Tu=5 and Tu=10 .
Figure-2. Concentration distribution in the combustion chamber height for the average value at
Tu = 5 and at Tu = 10 for CO2
It is visible, that maxima of concentration of carbonic oxide are reached in the centre of the top internal chamber, in area where the core gasification. according to an approach measure to exit CO takes place reacts with oxygen and occurs after combustion to CO2. Concentration value CO on exit from top internal space essentially decrease.
Figure-3. The temperature distribution on the Figure-4. The temperature distribution on the
height of the combustion chamber at Tu =5 height of the combustion chamber at Tu =10
From the diagram in Fig. 1-2 shows the concentration distribution of the height of the combustion chamber, depending on the gas (CO, CO2) at different values of turbulence Tu= 5 and at Tu = 10. From graphs we realized than more turbulence the less ejection harmful substances and better affects for complete combustion.
From the diagram in Fig. 3-4 distribution of temperature for various gases (CO, CO2, CH4, coke, etc.) in height in the combustion chamber differs slightly.
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