The objective of this 2-day course is to bring the
participants to the forefront of modern insights on flame
stabilization in industrial burners. Creation of a stable
flame always has been one of the design requirements of
burners in e.g. furnaces and gas turbines. But the aim to
reduce emissions by burning in extremely lean conditions or
by exploiting unconventional mixing scenarios has brought
the topic of flame stabilization high on the list of
challenges in burner design and operation. In this course
first an overview of burner types and flame stabilization
methods is given, with the underlying design principles and
the resulting scaling rules. The required performance of a
burner in relation to power, heat flux and emission is put
in the perspective of various applications in power
generation and petrochemical and metallurgical heating
processes. Then modern computational and experimental tools
for the investigation of flames are described, with special
emphasis on flame stability. Results of the application of
advanced CFD methods to real applications will be
presented. In a round table discussion the topics of most
interest to the participants will be discussed.
The technological challenge is to design a burner with
guaranteed ultra-low emissions of NOx, soot and unburned
hydrocarbons and with stably burning flames for the whole
range of operating conditions. An underlying scientific
challenge is the understanding of turbulence-chemistry
interaction. Among the questions to be addressed are: Which
flow phenomena have the greatest influence on flame
stabilization? How are they represented in computational
models? What are the essential advantages of large eddy
simulation (LES) compared to Reynolds Averaged Navier-
Stokes (RANS) simulations? What can we learn from Direct
Numerical Simulation (DNS)? What can we learn from advanced
laser diagnostics? How far are we in laboratory studies
from real scale applications and how far are we in applying
our models to real applications? What is the impact of new
developments on scaling rules of future combustion
systems?
The course is intended for researchers in industry,
equipped with a firm basic knowledge in fluid mechanics,
heat transport and combustion science, who want to build up
or widen their knowledge on modern computational and
experimental tools for burner design. Combustion
researchers from academia interested in learning more about
the opportunities for industrial application are also
welcome.
Lecturers
Prof. Dirk Roekaerts, Delft University of Technology, The
Netherlands
Prof. Epaminondas Mastorakos, Cambridge University, UK
Dr. Laurent Gicquel, CERFACS, France
Prof. Luc Vervisch, NSA Rouen & CNRS - CORIA, France
Prof. Andreas Dreizler, Darmstadt University of Technology,
Germany
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