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http://dx.doi.org/10.5855/ENERGY.2014.23.3.051

A study on the flow characteristics in a MILD combustion waste incinerator with the change of flue gas recirculation inlet location  

Ha, Ji Soo (Department of Mechanical and Automotive Engineering, Keimyung University)
Shim, Sung Hun (Korea Institute of Machinery and Materials)
Jung, Eung Ho (Department of Environmental Planning, Keimyung)
Publication Information
Journal of Energy Engineering / v.23, no.3, 2014 , pp. 51-57 More about this Journal
Abstract
A MILD(Moderate and Intense Low oxygen Dilution) combustion, which is effective in the reduction of NOx, is considerably affected by the recirculation flow position of hot exhaust gas to the combustion furnace. A numerical analysis was accomplished to elucidate the flow characteristics in the MILD combustion incinerator for several cases with or without exhaust gas recirculation. It could be seen from the result of the present numerical study that the flow recirculation could be observed in the upper region over the vertical dividing wall for the case without exhaust gas recirculation. The optimal position of exhaust gas recirculation position was derived by the comparison of %RMS of x directional velocity for the cases with exhaust gas recirculation. The case with the exhaust gas recirculation position at the upper right of free board was the most effective with the smallest value of 57.4% RMS.
Keywords
MILD combustion; coanda nozzle; flue gas recirculation; entrainment inlet location; streamline distribution;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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