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The aim of the research project was to establish a basis of physical understanding of burners used in furnaces burning lignite. Three inert particle-laden flows, namely a round turbulent jet, a sudden expansion in a pipe and a swirling annular jet, were measured to quantify the dispersion and velocity characteristics of the particles as a function of the diameter and the mass loading of the particles. Three further experiments were conducted in three scales of swirl burner with quarl throat diameter between 16 and 50.8 mm, using natural gas, kerosene and pulverised fuel. For gaseous combustion, the purpose was to measure flame stability, velocity, temperature and species concentration as a function of swirl number, fuel injector and quarl geometry, air velocity and burner size. Pulverised fuel, in the form of Greek lignite, English bituminous coal and Welsh anthracite, was burnt in the small swirl burner and in a 0.5 MW furnace, the seventh configuration. The purposes were to measure flame stability at the two scales of operation, to measure the velocity and size characteristics and to develop the associated instrumentation for the latter.

Additional information

Authors: BERGELES G, National Technical University of Athens, Aerodynamics Laboratory (GR);TAYLOR A M K P, Imperial College, Fluids Section, London (GB);WHITELAW J H, Imperial College, Fluids Section, London (GB)
Bibliographic Reference: EUR 14112 EN (1992) 18 pp., MF, ECU 4, blow-up copy ECU 6
Availability: (2)
Record Number: 199210444 / Last updated on: 1994-12-02
Original language: en
Available languages: en
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