Enhancement of hydrogen charging in metal hydride-based storage systems using heat pipe
| Autor: | Fawzi A.M. Elhamshri, Muhammet Kayfeci |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Absorption (acoustics)
Materials science Natural convection Hydrogen Renewable Energy Sustainability and the Environment Hydride Energy Engineering and Power Technology chemistry.chemical_element Condensed Matter Physics Metal Heat pipe Hydrogen storage Fuel Technology chemistry visual_art Heat transfer visual_art.visual_art_medium Composite material |
| Zdroj: | International Journal of Hydrogen Energy. 44:18927-18938 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2018.10.040 |
| Popis: | Heat transfer in metal hydride bed significantly affects the performance of metal hydride reactors (MHRs). Enhancing heat transfer within the reaction bed improves the hydriding rate. This study presents performance analysis in terms of storage capacity and time of three different cylindrical MHR configurations using storage media LaNi 5 : a) reactor cooled with natural convection, b) reactor with a heat pipe on the central axis, c) reactor with finned heat pipe. This study shows the impact of using heat pipes and fins for enhancing heat transfer in MHRs at varying hydrogen supply pressures (2–15 bar). At any absorption temperature, hydrogen absorption rate and hydrogen storage capacity increase with the supply pressure. Results show that using a heat pipe improves hydrogen absorption rate. It was found that finned heat pipe has a significant effect on the hydrogen charge time, which reduced by approximately 75% at 10 bar hydrogen supply pressure. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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