Development of pulverized biomass combustor with a pre-combustion chamber

Ponepen Laphirattanakul, Jarruwat Charoensuk, Chinnapat Turakarn, Chatchalerm Kaewchompoo and Niwat Suksam

Energy, 2020, vol. 208, issue C

Abstract: A 0.5 MW pre-combustion chamber for pulverized biomass burner was design based on a pulverized coal combustor design. The design concept, a 2D simulation guiding the construction and experimental results are discussed followed by an assessment of a 3D simulation. The difference in burning characteristics between coal and biomass were used to specify sizes of the air exits and the pre-combustion chamber. Simulation with pure biomass was used to guide fabrication of the test facility: the predicted temperature profiles suggested flame attachment within the specified operation range. Experimental results suggested that our design could achieve an anchoring flame as the measured temperature was above 800 °C within the pre-combustion chamber when operating between 0.3 and 0.5 MW. Maximum temperature at the last monitoring in the pre-combustion chamber was observed at 0.4 MW throughput, while the convection started to play negative impact at 0.5 M and the flame blow out occurred beyond this target. The 3D simulation under Reynolds-averaged Navier-Stokes assumption with its associated models agreed well with experiments which measured the axial temperature distribution in the pre-chamber. However, overestimation in the main combustion chamber suggested further improvement on model calibration as well as boundary conditions.

Keywords: Pulverized biomass combustion; Flame attachment; Recirculation zone; Supplementary air (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544220314407
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:208:y:2020:i:c:s0360544220314407

DOI: 10.1016/j.energy.2020.118333

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().