CFD optimization of a pellet burner

Abstract

Increased capacity of computers has made CFD technology attractive for the design of different apparatuses. Optimisation of a pellet burner using CFD 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.

Keywords

Dates

  • Submission Date2011-06-09
  • Revision Date2011-10-24
  • Acceptance Date2011-10-26

DOI Reference

10.2298/TSCI110609135W

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