Aggregation of experiments for estimation of hydrogen permeability parameters
| Autor: | N. Sidorov, Yury V. Zaika, Natalia I. Rodchenkova |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Hydrogen Renewable Energy Sustainability and the Environment 05 social sciences Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology Penetration (firestop) 021001 nanoscience & nanotechnology Condensed Matter Physics Permeability (earth sciences) Fuel Technology Lag time chemistry Cascade Desorption 0502 economics and business 050207 economics 0210 nano-technology Biological system |
| Zdroj: | International Journal of Hydrogen Energy. 43:8333-8341 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2018.02.137 |
| Popis: | The study of the hydrogen permeability of materials employs a variety of methods with their own specific features, advantages and drawbacks. The penetration method allows determining the diffusion coefficient from so-called lag time. The accuracy of the estimation depends on the degree of proximity to the DLR (diffusion limited regime) mode. The method of ‘communicating vessels’ is more sensitive to surface processes. ‘Separate’ application of these methods leads to a situation where the materials studied are in fact somewhat different (for example, due to different impacts on the surface), and significant differences in parameter estimates ensue. This paper suggests and implements a cascade experiment technique and the corresponding mathematical toolkit. The informative capacity of experimental studies and the accuracy of the estimation of hydrogen permeability parameters (diffusion, absorption, desorption) are thus enhanced. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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