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Original use of a direct injection high efficiency nebulizer for the standardization of liquid fuels spray flames

Rev. Sci. Instrum. 80, 105105 (2009); doi:10.1063/1.3249561

Published 28 October 2009

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R. Lemaire,1,2 M. Maugendre,3 T. Schuller,4 E. Therssen,1,5 and J. Yon3
1Université Lille Nord de France, F-59000 Lille, France
2EMDouai, EI, F-59500 Douai, France
3CORIA UMR CNRS 6614, Université et INSA de Rouen, F-76801 St. Etienne du Rouvray, France
4Laboratoire EM2C CNRS and Ecole Centrale Paris, F-92295 Châtenay-Malabry, France
5Laboratoire PC2A, UMR CNRS 8522, F-59655 Villeneuve d'Ascq, France
It is of practical importance to lead laboratory-scale experiments allowing a better understanding of the impact of commercial fuels composition on the formation of combustion residues such as soot particles. To this end, a hybrid burner has been designed recently to burn high-speed sprays of small liquid fuel droplets. It consists of a Holthuis (previously McKenna) burner originally equipped with a direct injection high efficiency nebulizer for the atomization of liquid hydrocarbons. A detailed description of this original setup is given in this paper. A priori estimations of atomization and evaporation times and length scales are then proposed and compared with experimental data. Droplet-size distribution measurements obtained in nonreacting conditions using a Malvern Spraytec particle sizer are presented and compared with values estimated by calculation. Cold sprays contours and liquid jet lengths in flames determined by Mie scattering at 532 and 1064 nm, respectively, are also presented. The results discussed in this work indicate that the hydrodynamic characteristics of the sprays generated with our system are relatively independent of the physical properties of fuels leading to comparable flames with identical liquid jet lengths, dimensions, and global structure. This feature facilitates an accurate comparison of flames burning various liquid hydrocarbons, which is of interest to emphasize differences in pollutants emissions and to highlight chemical effects for soot formation analysis. ©2009 American Institute of Physics
History: Received 7 July 2009; accepted 24 September 2009; published 28 October 2009
Permalink: http://link.aip.org/link/?RSINAK/80/105105/1
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KEYWORDS and PACS

Keywords
PACS
  • 82.33.Vx
    Chemical reactions in flames, combustion, and explosions
  • 82.30.Lp
    Decomposition chemical reactions (pyrolysis, dissociation, and fragmentation)
  • 47.70.Pq
    Flames; combustion (fluid dynamics)
  • 47.55.D-
    Drops and bubbles
  • 47.70.Fw
    Chemically reactive flows
  • 64.70.fm
    Thermodynamics studies of evaporation and condensation
  • YEAR: 2009

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PUBLICATION DATA

ISSN:
0034-6748 (print)   1089-7623 (online)
Publisher:
AIP is a member of CrossRef AIP

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