The Effect of the Precessing Vortex Core on Combustion in a Swirl Burner

This paper examines the fundamental characteristics of a 2 MW swirl burner/furnace system and in particular the excitation of the Precessing Vortex Core (PVC) in diffusion controlled combustion with, natural gas being introduced axially on the axis of symmetry. Previous studies have indicated that u...

Full description

Saved in:
Bibliographic Details
Published in:Combustion science and technology 1997-05, Vol.125 (1-6), p.139-157
Main Authors: SYRED, N., FICK, W., O'DOHERTY, T., GRIFFITHS, A. J.
Format: Article
Language:English
Subjects:
Applied sciences
combustion
Energy
Energy. Thermal use of fuels
Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc
Exact sciences and technology
Furnaces. Firing chambers. Burners
Gaseous fuel burners and combustion chambers
Swirl
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper examines the fundamental characteristics of a 2 MW swirl burner/furnace system and in particular the excitation of the Precessing Vortex Core (PVC) in diffusion controlled combustion with, natural gas being introduced axially on the axis of symmetry. Previous studies have indicated that under such conditions the PVC is virtually undetectable. The phenomena was investigated via phase averaged LDA and fine wire thermocouple measurements. The PVC influence is shown to extend over virtually all the furnace volume. A processing jet like structure of high velocity is created in which combustion is limited and temperatures are low. This region is responsible for the very high rates of mixing found in such systems. Clear relevance to practical industrial system is indicated.
ISSN:0010-2202
1563-521X
DOI:10.1080/00102209708935657