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Información tecnológica

versão On-line ISSN 0718-0764

Resumo

POLUPAN, Georgiy; JARQUIN, Guillermo; CARVAJAL, Ignacio  e  JIMENEZ, Juan A. Effect About Construction of the Recirculation System on NOx Formation in a Boiler with Power of 350 MW. Inf. tecnol. [online]. 2011, vol.22, n.2, pp.79-84. ISSN 0718-0764.  http://dx.doi.org/10.4067/S0718-07642011000200009.

The paper presents the results of a study on the formation of NOx in a 350 MW steam generator that burns fuel oil. The objective of this work was to determine the NOx formation applying two different constructions of recirculation gases. The first construction has the introduction of recirculation gases in the bottom of the furnace and the second one involves injection of recirculation gases in the hot air duct. In both cases, the study was developed at different thermal loads, maintaining constant the fractions of recirculation gases for each thermal load. The results show that the introduction of recirculation gases in the hot air duct reduces NOx formation by 58 % compared to those obtained with the traditional method of injection of gases in the bottom of the furnace.

Palavras-chave : steam generator; recirculation system; formation of NOx; fuel oil.

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