Foam formation in a carbonated solution undergoing pouring and decompression is investigated with the use of high-speed imaging. Operational conditions similar to those encountered in industrial bottling processes are applied to inspect the mechanisms that control the foaming behavior in practical filling applications. The evolution of the foam column during pressure release is analyzed in quantitative terms by extracting the foam thickness from the images. The bubble dynamics inside the solution and the destabilization processes on the foam column are seen to have a paramount effect on the observed foam evolution trend. The contributions to foam formation given by the nuclei entrained in the bulk liquid and by the bubble-generating sites on the container walls are finally distinguished and discussed.

Foam evolution in a processed liquid solution / Salerno, Elisabetta; Levoni, Paolo; Barozzi, Giovanni Sebastiano; Malfatto, Annalisa. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - 796:1(2017), pp. 1-10. (Intervento presentato al convegno 34th UIT Heat Transfer Conference 2016 tenutosi a Scientific and Technological Center of The University of Ferrara, ita nel 2016) [10.1088/1742-6596/796/1/012042].

Foam evolution in a processed liquid solution

SALERNO, ELISABETTA;LEVONI, Paolo;BAROZZI, Giovanni Sebastiano;
2017

Abstract

Foam formation in a carbonated solution undergoing pouring and decompression is investigated with the use of high-speed imaging. Operational conditions similar to those encountered in industrial bottling processes are applied to inspect the mechanisms that control the foaming behavior in practical filling applications. The evolution of the foam column during pressure release is analyzed in quantitative terms by extracting the foam thickness from the images. The bubble dynamics inside the solution and the destabilization processes on the foam column are seen to have a paramount effect on the observed foam evolution trend. The contributions to foam formation given by the nuclei entrained in the bulk liquid and by the bubble-generating sites on the container walls are finally distinguished and discussed.
2017
34th UIT Heat Transfer Conference 2016
Scientific and Technological Center of The University of Ferrara, ita
2016
796
1
10
Salerno, Elisabetta; Levoni, Paolo; Barozzi, Giovanni Sebastiano; Malfatto, Annalisa
Foam evolution in a processed liquid solution / Salerno, Elisabetta; Levoni, Paolo; Barozzi, Giovanni Sebastiano; Malfatto, Annalisa. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - 796:1(2017), pp. 1-10. (Intervento presentato al convegno 34th UIT Heat Transfer Conference 2016 tenutosi a Scientific and Technological Center of The University of Ferrara, ita nel 2016) [10.1088/1742-6596/796/1/012042].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1135507
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