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- Title
Nitric oxide emissions and combustion performance of nontraditional ring-fired boilers with furnace geometries.
- Authors
Sung, Yonmo; Choi, Cheolyong; Moon, Cheoreon; Eom, Seongyong; Lee, Jong; Kim, Byung; Choi, Gyungmin; Kim, Duckjool
- Abstract
The flow, combustion and emission characteristics of nontraditional ring-fired-type furnaces were investigated numerically to evaluate the effects of incorporating additional inner water walls on the heat transfer, carbon burnout and emissions of nitrogen oxides. Both tangentially and ring-fired-type furnaces were considered and the ring-fired-type furnaces were divided into four inner-water-wall cases: without, normal type, radiant expended type and both radiant and convective expended type. The presence of the inner water wall led to an improvement of approximately 50% in the heat flux. In particular, the reduction in nitrogen oxide emissions was approximately 30%, whereas the carbon burnout was kept constant.
- Subjects
NITRIC oxide; COMBUSTION; BOILERS; HEAT transfer; FURNACES; HEAT flux
- Publication
Journal of Mechanical Science & Technology, 2015, Vol 29, Issue 8, p3489
- ISSN
1738-494X
- Publication type
Article
- DOI
10.1007/s12206-015-0747-0