Title: Development of a prototype low-NO/sub x/ industrial baffle burner
Abstract: A prototype hot air (up to 1200/sup 0/F) industrial low-NO/sub x/ baffle burner was designed by Bloom Engineering Co., Inc., and tested by the Institute of Gas Technology under sponsorship of the Gas Research Institute. The burner utilizes two-stage combustion, in which a portion of the combustion air mixes with the fuel at the burner to form the flame under fuel-rich conditions and the remaining portion of the air is injected so that it mixes downstream from the initial flame to complete combustion, achieving low-NO/sub x/ emissions. The burner was designed to allow relatively easy modifications of the air distribution. The results from the prototype burner were compared with those from a standard Bloom 1201-100 FTR hot air burner, which was used as the baseline case. The NO/sub x/ emissions from the Bloom prototype burner with natural gas were consistently 45 to 60% lower than those from the standard burner at similar operating conditions. In addition, the NO/sub x/ emissions from the prototype were significantly less sensitive to both the excess air level and the combustion air temperature than the emissions from the standard burner. For example, the NO/sub x/ emissions increased by 150% for the standard burner but bymore » only 75% for the prototype when the air preheat temperature was increased from 700/sup 0/ to 1100/sup 0/F. The heat load profiles and flue-gas temperatures were similar for the two burners, and the flames for the prototype burner were slightly shorter. Although the burner is designed for natural gas and heavy oil, it has not yet been optimized for oil firing.« less
Publication Year: 1982
Publication Date: 1982-01-01
Language: en
Type: article
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