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Modeling of the trajectories of the hydrogen bubbles evolving from the cathode in a fluorine production cell

Institution:	1. Department of Chemical Engineering, Ajou University, Suwon 442-749, Republic of Korea;2. KIST, Environment and Process Technology Division, Seoul 136-791, Republic of Korea;1. School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian, Liaoning, 116024, People’s Republic of China;2. Chemical Analysis and Research Center, Dalian University of Technology, Dalian, Liaoning, 116024, People’s Republic of China;3. School of Materials Science and Engineering, Dalian University of Technology, Dalian, Liaoning, 116024, People’s Republic of China;1. Instituto Teófilo Hernando and Departamento de Farmacología y Terapéutica, Facultad de Medicina, Universidad Autónoma de Madrid, C/ Arzobispo Morcillo, 4, 28029 Madrid, Spain;2. Servicio de Farmacología Clínica, Instituto de Investigación Sanitaria, Hospital Universitario de la Princesa, C/ Diego de León, 62, 28006 Madrid, Spain;1. Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada;2. Key Laboratory of Cluster Science (Ministry of Education of China), School of Chemistry, Beijing Institute of Technology, Beijing 100081, PR China;1. Key Laboratory for Feed Biotechnology of the Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, People’s Republic of China;2. National Animal Husbandry Extension Service, Beijing 100125, People’s Republic of China

Abstract:	The fluid velocity and temperature fields and the trajectories of the hydrogen bubbles evolving from the cathode in a fluorine production cell were studied by using the finite element method. It was examined the effect of the configuration of the slits formed on the cathode on the escape of the hydrogen bubbles toward the backside of the cathode to reduce the ohmic voltage loss between the electrodes. The results showed that the cathode configuration has a profound effect on both of the flow pattern near the cathode and the bubble trajectories. It was found that the cathode with the slits only on the upper half of the electrode is more effective in removing the bubbles to the backside of the cathode than the one with the slits over the entire electrode.

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