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How to clean an oil furnace combustion chamber? 

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Therefore, it is very urgent to develop and widely disseminate clean and efficient combustion technologies for household use.
The rapid heating of the combustible mixture in the chamber facilitates pyrolysis, volatile matter release processes for the fuel particles, suppressing ignition delay and enhancing combustion stability.
The simulation results contribute to better understanding of the blast furnace phenomena with combined injection and also to the development of new cleaner technologies to enhance the blast furnace operation.
This study numerically verified the enhanced efficiency of a steel reheating furnace when applying oxy-fuel combustion instead of air-fuel combustion.
Consequently, a determination of the processes in the combustion chamber and agglomeration in the exhaust gas is feasible.
Three main conclusions were drawn: (1) the combustion process was much slower if compared with conventional burner technology, and hydrocarbons, hydrogen, and carbon monoxide were measured far downstream into the furnace, (2) high and uniform radiative heat fluxes were observed, and (3) novel simplified chemistry models applicable to this new combustion conditions are required.
The results obtained from this study show that models and numerical methods selected are appropriate to correctly predict the combustion processes within the furnace.
These results showed that the pyrolysis oil could be directly used as a fuel oil for combustion in a boiler or a furnace without any upgrading.
The close collaboration and comparison between different techniques described in this paper increased the understanding of the processes going on in the combustion chamber.
The simulation results show that the flamelet LES approach can successfully describe the flow field and combustion inside the furnace; major species and velocities are found in good agreement with the experiment.