Preliminary analysis of the chaotic behavior in hydrogen electrochemical devices. Issue 17 (2021)

• Record Type: Journal Article
• Authors: Buscarino, A.; Caponetto, R.; Marco, E. De; Matera, F.; Privitera, E.; Xibilia, M.G.
• Is Part Of: IFAC-PapersOnLine. Volume 54:Issue 17(2021)
• Page Start: 149
• Page End: 153
• Publication Date: 2021
• Subjects: Chaotic behavior -- Lyapunov exponents -- phase space -- dynamics analisys -- Nernst equation -- hydrogen electrochemical devices; Automatic control -- Periodicals; 629.805
• DOI: 10.1016/j.ifacol.2021.11.041
• Languages: English
• ISSNs: 2405-8963

Abstract

Abstract: The chaotic analysis is often used to investigate electrochemical signals. The proposed work applies it to understand the behavior of hydrogen electrochemical devices, with particular attention to electrochemical hydrogen compressors (EHC). Measurements, carried out at the C.N.R - Istituto di Tecnologie Avanzate per l'Energia "Nicola Giordano" of Messina, show a current fluctuation with a fixed voltage. The oscillating phenomenon is not justifiable by the Nernst equation and the possible chaotic behavior of the EHC has been investigated. The system is highly sensitive to the initial conditions and presents a density of periodic orbits, shown in the reconstructed phase plane through the time delay embedding technique.