Combustion Control Experimentations at a Pilot Scale Glass Furnace


In a multi-burner furnace, inefficient operation of individual burners could result in furnace operation at less than optimal fuel efficiency and elevated pollutant emissions. This paper presents various experimental explorations using a pilot scale glass furnace to investigate the impact of optimum combustion on flue gas emissions such as NOx. the glass furnace utilized is a 23-146 kW pilot scale furnace that can melt from about 45 kg to 900 kg of glass/day. Furnace design allows both air-gas and oxy-fuel combustion with different burner types and burner arrangements. the furnace is controlled through a Lab View hardware and software control system. Results from combustion control experimentation under ramp-up condition and various oxygen/fuel ratios from this pilot scale glass furnace are presented here. the oxygen/fuel ratio was varied from 1.8 to 2.4 with various combustion control experimentations in both step and ramp-up fashion. using a spectrometer, spectral intensity data were collected over the ultraviolet/visible regions. the data was analyzed for specific radical chemiluminescence and the electromagnetic emission spectrum. Direct correlation and dynamic response was observed from the emission band from the hydroxyl flame radical, OH, to burner stoichiometry and flue gas NOx emissions. the results show a great promise for online combustion monitoring at the burner level for gas-fired glass furnace applications.


Nuclear Engineering and Radiation Science

Second Department

Materials Science and Engineering

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Article - Conference proceedings

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Publication Date

01 Dec 2004

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