INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, cilt.203, sa.153176, ss.1, 2026 (SCI-Expanded, Scopus)
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 °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.