Combustion performance improvement of grate fired furnaces using Ecotube system
2006 (English)In: Journal of the Energy Institute, ISSN 1743-9671, Vol. 79, no 2, 67-74 p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
2006. Vol. 79, no 2, 67-74 p.
numerical simulation, combustion, turbulence, incinerator, boiler, coal
IdentifiersURN: urn:nbn:se:kth:diva-15853DOI: 10.1179/174602206x103530ISI: 000239090500001ScopusID: 2-s2.0-33745760287OAI: oai:DiVA.org:kth-15853DiVA: diva2:333895
QC 201005252010-08-052010-08-05Bibliographically approved