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Experimental Study on Thermal NOx and CO Emission in a Laboratory-Scale Incinerator with Reversed Secondary Air Jet Injection
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 Title & Authors
Experimental Study on Thermal NOx and CO Emission in a Laboratory-Scale Incinerator with Reversed Secondary Air Jet Injection
Choi, Chonggun; Choi, Woosung; Shin, Donghoon;
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Incinerators generally emit pollutants such as NOx and CO during the combustion process. In this paper, pollutant emissions and temperature distributions were studied in a simulated incinerator with a reversed (relative to the flue gas flow) secondary air injection system. The experiments were performed by using a lab-scale furnace in order to evaluate the effects of the injection location, direction and flow rate of secondary air jets. The emission of NOx was lower in the case of reversed secondary air injection than in the case of cross injection, due to the recirculation and mixing of the exhaust gas. In the reversed air injection cases, thermal NOx emissions decreased as secondary air ratio increased from 30 to 60 and slightly increased at secondary air ratios higher than 60. In most cases, CO emissions were not detected except for a few reversed secondary air injection cases, in which cases CO concentrations below 2ppm were observed.
Secondary Air;Reversed Air Injection;NOx Reduction;Combustion;Thermal NOx;
 Cited by
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