Article Number 199902, October 1999

ON THE DEVELOPMENT OF
A COAL FIRED PRECESSING JET BURNER
J. P. Smart^#, G. J. Nathan⁺, N. L. Smith⁺, G. J. R. Newbold⁺, D. S. Nobes⁺ and D. J. Morgan^*

(PDF article, 152 KB)

ABSTRACT:

In this paper, results are presented on the development of a coal fired precessing jet burner. The jet precession phenomenon creates unique flow structures within the flame and results in fundamentally new flame aerodynamics and fuel-air mixing regimes. The experimental work was performed at the International Flame Research Foundation in the Netherlands. Results show that using jet precession in a coal burner configuration can significantly enhance fuel-air mixing in a fundamentally new way and can result in significantly reduced NOx emissions. Further planned development work is also discussed in the main text.

Key Words: combustion, precessing jet, Gyro-therm, coal, NOx, cement manufacture.

# Smart Energy and Combustion Solutions
+ Department of Mechanical Engineering, The University of Adelaide
* Blue Circle Industries

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