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Where is a furnace combustion chamber located? 

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The optimization work revealed that a furnace arch length of 1.5 m and injecting the pyrolysis gas through the small hole on front wall of the furnace may be considered as a comparatively well-organized mode.
The hearth is a crucial region of the blast furnace, since the life of its refractory may be decisive for the campaign length of the furnace.
The results show that the combustion is sustained in the chamber, as evidenced by the flame temperature.
The simulation results indicate that the crucial unit is 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.
underline the capability of the code to predict combustion conditions and, in particular, the growth rates of deposits of different particle size over the furnace walls, as well as the most critical locations for particle deposition.
The predicted temperature and gas composition fields have been uniform demonstrating that slow combustion occurs in the entire furnace volume.
Further accurate understanding of the interaction of the combustion events between the chambers and the gas exchange process can lead to optimum pre-chamber design and operation, and enable system scalability.
Comparing the simulation predictions and available site measurements concerning temperature, heat flux and combustion efficiency, a conclusion can be drawn that the model produces realistic insight into the furnace processes.
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.

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