Temperature measurements of binary droplets using three-color laser-induced fluorescence

Evaporation of multicomponent droplets is a critical problem in many engineering applications, for example spray combustion. Knowledge of droplet temperature is a key issue in understanding the highly complex heat and mass-transfer phenomena related to multicomponent droplet evaporation and combusti...

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Bibliographic Details
Published in:Experiments in fluids 2006-05, Vol.40 (5), p.786-797
Main Authors: MAQUA, C, CASTANET, G, LEMOINE, Fabrice, DOUE, N, LAVERGNE, G
Format: Article
Language:English
Subjects:
Acetone
Applied sciences
Combustion
Combustion. Flame
Droplets
Energy
Energy. Thermal use of fuels
Engineering Sciences
Ethyl alcohol
Evaporation
Exact sciences and technology
Fluorescence
Mathematical models
Miscellaneous
Reactive fluid environment
Sprays
Theoretical studies. Data and constants. Metering
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Summary:Evaporation of multicomponent droplets is a critical problem in many engineering applications, for example spray combustion. Knowledge of droplet temperature is a key issue in understanding the highly complex heat and mass-transfer phenomena related to multicomponent droplet evaporation and combustion. In this work, optical diagnosis based on three color-laser-induced fluorescence was developed: the objective was to measure the temperature of binary droplets (ethanol and acetone mixtures), even when the composition varies with time. Demonstration on an overheated droplet stream of acetoneaethanol mixtures is described and the experimental data are compared with results from a numerical simulation based on the discrete-components model.
ISSN:0723-4864
1432-1114
DOI:10.1007/s00348-006-0116-y