Publisher： John Wiley & Sons Inc
E-ISSN： 1521-4125|38|5|941-946
ISSN： 0930-7516
Source： CHEMICAL ENGINEERING & TECHNOLOGY (CET), Vol.38, Iss.5, 2015-05, pp. : 941-946
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
AbstractA fast method is proposed for determining the oxygen gas‐liquid diffusion coefficient from measurements of the fluorescence quenching behind a bubble. The approach consists of capturing pictures of the concentration field at micro‐scale in the laminar bubble wake. The Gaussian concentration profiles measured in the wake are demonstrated to be systematically equivalent to an instantaneous plane diffusion case. The approach permits to accurately evaluate the gas‐liquid diffusivity in a very short time of around one second.
Related content
Access to resources
Recommend
Automated measurements of gas‐liquid mass transfer in micropacked bed reactors
AICHE JOURNAL, Vol. 64, Iss. 2, 2018-02 ,pp. :
Behavior of Small Permanent Gas Bubbles in a Liquid: Part II. Bubble Clouds
STUDIES IN APPLIED MATHEMATICS, Vol. 37, Iss. 1, 1958-04 ,pp. :
Behavior of Small Permanent Gas Bubbles in a Liquid: Part II. Bubble Clouds
STUDIES IN APPLIED MATHEMATICS, Vol. 37, Iss. 1, 1958-04 ,pp. :