Characterization of laminar premixed flame firing biomass derived syngas with oxygen enriched air

Abstract: Ceramic industries are highly energy intensive, with more than 50% of total cost from liquefied petroleum gas (LPG) used for firing process. Biomass derived syngas may be deployed to substitute LPG in this process. In this work, characterization of laminar premixed flame (laminar flame speed and flame stability) firing biomass derived syngas was carried out with varying oxygen contents in air (21-50%). From the experimental work, it was found that laminar flame speed increased with increasing oxygen concentration in enriched air. This was mainly because reduction in nitrogen dilution resulted in higher burning temperature and faster reaction rate. Increasing oxygen content in air also improved the flame stability to be available in a wider range of combustible mixture and higher blowoff limit. This way, applications with more power and higher flame temperature can be achieved from utilization of biomass derived gaseous fuels.

Keywords: biomass, combustion, flame propagation, gasification, renewable energy

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