Title: Study of radiolytic gas bubbles formation and behaviour in an aqueous uranyl sulphate solution using ImageJ

Authors: Daniel Milian Pérez; Daylen Milian Pérez; Liván Hernández Pardo; Daniel E. Milian Lorenzo; Abel Gámez Rodríguez; Antônio Celso Dantas Antonino; Carlos A. Brayner De Oliveira Lira

Addresses: Departamento de Energia Nuclear, Universidade Federal de Pernambuco (UFPE), Recife, Pernambuco, Brazil; Higher Institute of Technologies and Applied Sciences (InSTEC), University of Havana, Havana, Cuba ' Higher Institute of Technologies and Applied Sciences (InSTEC), University of Havana, Havana, Cuba ' Higher Institute of Technologies and Applied Sciences (InSTEC), University of Havana, Havana, Cuba ' Higher Institute of Technologies and Applied Sciences (InSTEC), University of Havana, Havana, Cuba ' Departamento de Energia Nuclear, Universidade Federal de Pernambuco (UFPE), Recife, Pernambuco, Brazil ' Departamento de Energia Nuclear, Universidade Federal de Pernambuco (UFPE), Recife, Pernambuco, Brazil ' Centro Regional de Ciências Nucleares (CRCN-NE/CNEN), Recife, Pernambuco, Brazil

Abstract: This paper delves into the study of the radiolytic gas bubbles formation in uranium salt solutions using the ImageJ software for the determination of parameters of interest of the gas bubbles. In this way the gas bubbles diameter, gas bubbles velocity and local gas volume fraction for three electron bean power levels, 6, 12 and 15 kW were determined. It was determined that the radiolytic gas bubbles average diameter varies between 200 and 300 μm, increasing with the increase in power. A similar behaviour was observed for the bubble velocity, which increases accordingly with the increase in power density. The study of the gas volume fraction indicated that although the radiolytic gas bubble size does not increase significantly with increasing power, the number of bubbles and gas produced increases appreciably. All of these results were consistent with those reported by other authors in the literature.

Keywords: aqueous solution; uranium salts; aqueous homogeneous systems; radioisotope production; ImageJ.

DOI: 10.1504/IJNEST.2020.10039032

International Journal of Nuclear Energy Science and Technology, 2020 Vol.14 No.3, pp.235 - 251

Received: 17 Sep 2020
Accepted: 19 Jan 2021

Published online: 23 Jun 2021 *

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