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Numerical study of fuel temperature influence on single gas jet combustion in highly preheated and oxygen deficient air
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Energy and Furnace Technology.ORCID iD: 0000-0002-1837-5439
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Energy and Furnace Technology.
2005 (English)In: Energy, ISSN 0360-5442, E-ISSN 1873-6785, Vol. 30, no 04-feb, 385-398 p.Article in journal (Refereed) Published
Abstract [en]

Combustion of a single jet of propane in a cross-flowing stream of preheated and oxygen deficient air is numerically analyzed with emphasis on influences of fuel temperature. Both Eddy-Break-Up and PDF/mixture fraction combustion models coupled with RNG k-epsilon turbulent model were applied and the predicted results were compared. Thermal and prompt NO models were employed to calculate NO emissions. Results show that the Eddy-Break-Up model is more suitable for predicting temperature field and flame shape. It was showed that flame during high temperature air combustion condition is spread over a much larger volume. Flame volume increases with a reduction of oxygen concentration. and this trend is clearer if oxygen concentration in the preheated air is below 10%. Additionally, it is almost constant at fixed oxygen concentration and fuel inlet temperature for the temperature of the preheated and oxygen deficient air equal to 1041-1273 K. Increase of the fuel inlet temperature results in smaller flame, shorter mean residence time, smaller temperature peaks, and lower emission of NO.

Place, publisher, year, edition, pages
2005. Vol. 30, no 04-feb, 385-398 p.
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-14433DOI: 10.1016/j.energy.2004.05.011ISI: 000225759200024Scopus ID: 2-s2.0-8744311670OAI: oai:DiVA.org:kth-14433DiVA: diva2:332474
Note
QC 20100525 QC 20111012. 3rd International Symposium on Advanced Energy Conversion Systems and Related Technologies. Nagoya, JAPAN. DEC 15-17, 2001 Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

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Yang, Weihong

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CiteExportLink to record
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Citation style
  • apa
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  • vancouver
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