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Combustion performance improvement of grate fired furnaces using Ecotube system
KTH, Skolan för industriell teknik och management (ITM), Materialvetenskap, Energi- och ugnsteknik.ORCID-id: 0000-0002-1837-5439
2006 (engelsk)Inngår i: Journal of the Energy Institute, ISSN 1743-9671, Vol. 79, nr 2, s. 67-74Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

This paper presents the main features, advantages and an evaluation of applications of an 'Ecotube' technology for combustion improvement and emission reduction. The sensitivity of the Ecotube locations in a combustion chamber and the injection angle of jets on the Ecotube have been analysed numerically. A municipal solid waste incinerator and a coal fired boiler are the focus of this work. A definition of the heat release distribution ratio is proposed to identify the heat release inside the upper furnace of boilers or incinerators. Results show that an Ecotube system allows a far more uniform heat release, lower CO and NOx emissions, and a more uniform temperature distribution, thus a longer life of the furnace chamber. Additionally, the combustion reaction zone occupies as high as 45% of the whole combustion chamber using an Ecotube system, similar to 40% higher than a conventional multijet mixing system.

sted, utgiver, år, opplag, sider
2006. Vol. 79, nr 2, s. 67-74
Emneord [en]
numerical simulation, combustion, turbulence, incinerator, boiler, coal
Identifikatorer
URN: urn:nbn:se:kth:diva-15853DOI: 10.1179/174602206x103530ISI: 000239090500001Scopus ID: 2-s2.0-33745760287OAI: oai:DiVA.org:kth-15853DiVA, id: diva2:333895
Merknad
QC 20100525Tilgjengelig fra: 2010-08-05 Laget: 2010-08-05bibliografisk kontrollert

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