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Computational fluid dynamics optimisation of a pellet burner
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.
Luleå University of Technology, Department of Engineering Sciences and Mathematics.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.ORCID iD: 0000-0001-7599-0895
2012 (English)In: Thermal Science, ISSN 0354-9836, E-ISSN 2334-7163, Vol. 16, no 4, p. 1275-1286Article in journal (Refereed) Published
Abstract [en]

Increased capacity of computers has made the computational fluid dynamics technology attractive for the design of different apparatuses. Optimisation of a pellet burner using the computational fluid dynamics was investigated in this paper. To make the design tool work fast, an approach with only mixing of gases was simulated. Other important phenomena such as chemical reactions were omitted in order to speed up the design process. The original design of the burner gave unsatisfactory performance. The optimised design achieved from simulation was validated and the results show a significant improvement. The power output increased and the emission of unburned species decreased but could be further reduced. The contact time between combustion gases and secondary air was probably too short. An increased contact time in high temperature conditions would possibly improve the design further.

Place, publisher, year, edition, pages
2012. Vol. 16, no 4, p. 1275-1286
National Category
Energy Engineering Fluid Mechanics and Acoustics
Research subject
Energy Engineering; Fluid Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-8402DOI: 10.2298/TSCI110609135WISI: 000311917000020Scopus ID: 2-s2.0-84874688736Local ID: 6ea30390-c0f9-4f16-9fdf-be9506fe8658OAI: oai:DiVA.org:ltu-8402DiVA, id: diva2:981340
Note
Validerad; 2012; 20121205 (cervante)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Westerlund, LarsHermansson, RogerCervantes, Michel

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