Journal
EXPERIMENTS IN FLUIDS
Volume 63, Issue 9, Pages -Publisher
SPRINGER
DOI: 10.1007/s00348-022-03495-6
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- Ministere de l'Enseignement Superieur et de la Recherche
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This study extends the rainbow technique to characterize internal gradients in reactive sprays and demonstrates the quantification of these gradients during the initial moments of injection.
Reactive sprays can be found in numerous industries such as combustion, spray drying, and purification of exhaust gases. The characterization of transient state for such droplets in these sprays is a challenge, asking for the measurement of the temperature and/or composition gradients inside the droplets. In this work, rainbow technique is extended to characterize internal gradients. After the numerically study of the characteristics of rainbow scattered by droplet with radial refractive index gradients, an experimental study was carried out for the case of CO2 capture by Monoethanolamine (MEA) droplets. The investigation demonstrates that the gradients can be quantified during the first moments of injection. [GRAPHICS] .
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