2020: Comparison of three different techniques for gas-liquid mass transfer visualization

Abstract In this article three different techniques for visualizing gas-liquid mass transfer are reviewed according to their applications in air-water systems. The three techniques are: Planar Laser Induced Fluorescence (PLIF with the use of fluorescent resorufin), PLIF with Inhibition (PLIF-I with the use of a ruthenium complex), and a colorimetric technique (using a redox reaction […]

2019: Hydrodynamics and gas-liquid mass transfer around a confined sliding bubble

Local investigation of the gas-liquid mass transfer using oxygen sensitive dye. A single vortex leg enclosing transferred oxygen in the confined sliding bubble wake. Angle of inclination of upper wall inclination affects mass transfer. A scaling law between Sherwood numbers and modified Archimedes numbers. Abstract An experimental investigation of gas-liquid mass transfer in the wake of a confined air […]

2019: Using the “Red Bottle” Experiment for the Visualization and the Fast Characterization of Gas–Liquid Mass Transfer

Abstract This paper presents a demonstration of the visualization and the characterization of gas–liquid mass transfer in a small bubbly column. The aim is to show how simple experiments can be used to directly quantify mass transfer without the need of sophisticated probes or complex titrations. The method here proposed is based on the “red […]

2018: Mass transfer and diffusion in the wake of single air bubbles rising in polymer aqueous solutions quantified by PLIF with inhibition

New paper : Mass transfer and diffusion in the wake of single air bubbles rising in polymer aqueous solutions quantified by PLIF with inhibition Based on the planar laser-induced fluorescence with inhibition (PLIF-I) experiments, the mass transfer and diffusion phenomena in the wake of single air bubbles (equivalent diameter ∼ 1–1.4 mm) rising in various aqueous […]

2018 : Visualization of gas-liquid mass transfer around bubbles

Invited conference: Visualization of gas-liquid mass transfer around bubbles, N. Dietrich, M. Jimenez, M. Mei, L. Yang, F. Felis, F. Xu, K. Loubière & G. Hébrard, Xi’an Jiatong University, Meeting Room 2, School of Aerospace, October the 16th 2018, China Abstract: Mass transfer in gas/liquid systems is of prime interest for several areas (medicine, chemical […]

2018 : 19th International Symposium on the Application of Laser and Imaging Techniques to Fluid Mechanics, LISBON | PORTUGAL ・JULY 16 – 19, 2018

2 Presentations: Experiments on reactive mass transfer around an oxygen bubble rising freely in a confined cell using colourimetric methods, F. Felis, N. Dietrich, A. -M. Billet, F. Strassl, S. Herres-Pawlis, V. Roig and K. Loubière. Comparison of three different visualization techniques for local mass transfer characterization around single bubble rising in water, F. Xu, […]

2018: 2nd International Workshop Non-Invasive Experimental Tools and Numerical Methods for the Investigation of Non-Reactive and Reactive Gas-Liquid Flows

    Faisant écho au colloque Franco-Allemand de juin 2016 organisé à Toulouse, ce second colloque s’est déroulé à Hambourg, dans les locaux de Technische Universität Hamburg (TUHH). Dans ce colloque se sont réunis environ 40 scientifiques (chercheurs, post-doctorants et doctorants, issus de la fédération de recherche FERMaT (14 participants,) et des universités membres du […]

2018 : Escape Classroom: The Leblanc Process—An Educational “Escape Game” – J. Chem. Educ.

An “escape game” activity is proposed to increase stimulation, team group skills, and adaptability in the chemistry classroom. The students follow in the footsteps of Nicolas Leblanc, a young French chemist, who took part in a contest launched by the French Academy of Sciences in 1775 to produce industrial soda ash. By means of scientific […]

2017: Fast determination of gas-liquid diffusion coefficient by an innovative double approach

Feishi Xu, Mélanie Jimenez, Nicolas Dietrich, Gilles Hébrard Chemical Engineering Science Volume 170, 12 October 2017, Pages 68-76 Abstract Two effective mathematical approaches based on the probability and statistics theory are proposed for obtaining the oxygen diffusion coefficients in gas-liquid systems. The first method was to apply PLIFI (Planar Laser Induced Fluorescence with Inhibition) to […]