Abstract
The increasing demand for cleaner and more efficient high-temperature industrial processes has intensified interest in hydrogen-enriched combustion, particularly for ceramic furnaces. This study numerically investigates a multi-burner ceramic furnace operating with methane-hydrogen blends under hydrogen mass fractions of 5-20 % and equivalence ratios ranging from 0.5 to 1.0. The numerical model was validated using experimental temperature data reported in the literature. The results show that hydrogen enrichment enhances combustion efficiency and temperature uniformity while significantly reducing carbon emissions. Compared to the baseline H0 case, the peak flame temperature increased approximately 5.2 %, and temperature uniformity improved by approximately 0.6 %. CO2 emissions decreased by 26.42 % with 20 % hydrogen enrichment, whereas NOX emissions increased by about 37.4 % due to intensified thermal-Zeldovich pathways at higher flame temperatures. The time-dependent ceramic heating model reached 1200 degrees C at 60,000 s, consistent with experimental observations. Overall, moderate hydrogen blending levels, particularly H10 and H15, provided the best balance between thermal performance and emissions, highlighting the potential of hydrogen-assisted combustion for sustainable ceramic production.
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Kapsamı
Uluslararası
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Type
Hakemli
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Index info
WOS.SCI
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Language
English
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Article Type
None