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http://dx.doi.org/10.3795/KSME-B.2005.29.10.1148

New Approach to Low NOx Combustion by Changing Combustor Pressure  

Kim Jong Ryul (부산대학교 대학원 기계공학과)
Choi Gyung-Min (부산대학교 기계공학부)
Kim Duck-Jool (부산대학교 기계공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.29, no.10, 2005 , pp. 1148-1155 More about this Journal
Abstract
In this study, the influence of changing combustor pressure on nitric oxide emission was investigated. Expansion of reaction region was more clear in the P$^{*}$ <1 conditions compared to the P$^{*}\geq1$ conditions, and it could be observed that flames are distinct in the P$^{*}\geq1$ conditions and that brightness is relative low and wide distribution is shown in the P$^{*}$ <1 conditions. In the respect of temperature distribution, narrow and high-temperature region was shown in the P$^{*}\geq1$ conditions. On the other hands, overall uniform temperature distributions were shown in the P$^{*}$ <1 conditions. Nitric oxide emission decreased with decreasing combustor pressure. This tendency was explained by the mean flame temperature distribution. Low NOx combustion is ascribed to wide-spread reaction region in the low combustor Pressure and oscillation were shown P$^{*}\leq0.97$, and strength and sizes of oscillation were more increased with lower pressure index. These results demonstrate that flame shape and nitric oxide emission can be controlled with changing combustor pressure.
Keywords
Low NOx; Changing Combustor Pressure; Combustion Control; Partially Premixed Flame;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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