A mathematical model for hydrogen evolution in an electrochemical cell and experimental validation
Küçük Resim Yok
Tarih
2006
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Electrochemical reaction is largely employed in various industrial areas such as hydrogen production, chlorate process, electroplating, metal purification etc. Most of these processes often take place with gas evaluation on the electrodes. Presence of gas phase in the liquid phase makes the problem two-phase flow which is much knowledge available from heat transfer and fluid mechanics studies. The motivation of this study is to investigate hydrogen release in an electrolysis processes from two-phase flow point of view and investigate effect of gas release on the electrolysis process. Hydrogen evolution, flow field and current density distribution in an electrochemical cell are investigated with a two-phase flow model. The mathematical model involves solutions of transport equations for the variables of each phase with allowance for inter phase transfer of mass and momentum. An experimental set-up is established to collect data to validate and improve the mathematical model. Void fraction is determined from measurement of resistivity changes in the system due to the presence of bubbles. A good agreement is obtained between numerical results and experimental data. Copyright © (2006) by AFHYPAC.
Açıklama
16th World Hydrogen Energy Conference 2006, WHEC 2006 -- 13 June 2006 through 16 June 2006 -- Lyon -- 96270
Anahtar Kelimeler
Resistivity measurements, Two-phase flow, Void fraction, Water electrolysis
Kaynak
16th World Hydrogen Energy Conference 2006, WHEC 2006
WoS Q Değeri
Scopus Q Değeri
N/A
Cilt
4
