Thermal energy storage with phase change materials: Application on coaxial heat exchanger with fins
| Autor: | Ayoub Gounni, Zakaria Elmaazouzi, El Ghali Bennouna, Mustapha El Alami |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science business.industry Nuclear engineering Multiphysics 02 engineering and technology 021001 nanoscience & nanotechnology Annular fin Thermal energy storage 01 natural sciences Energy storage Thermal conductivity 0103 physical sciences Computer data storage Heat exchanger Coaxial 0210 nano-technology business |
| Zdroj: | Materials Today: Proceedings. 27:3095-3100 |
| ISSN: | 2214-7853 |
| DOI: | 10.1016/j.matpr.2020.03.653 |
| Popis: | For storing energy in thermal form, there are three types of storage: sensible heat storage (SHS), latent heat storage (LHS), and thermochemical storage (TCS). In the third millennium, LHS technology has been the most attractive technology for researchers and specialists, because of its enormous storage density compared to sensitive storage (high energy storage density, greater than 100 kJ/kg) in a small temperature range. Nevertheless, due to the low thermal conductivity of phase change materials (PCM), the thermal performance of the LHTES system is generally unsatisfactory. Therefore, this study highlights the role of annular fins on coaxial heat exchanger LHTES with annular fins, examined using software Comsol Multiphysics based on the finite element method. The present investigation is only for the process of charging. DelcoTerm is used as heat transfer fluid (HTF), and NaNO2-NaNO3 is used as PCM. In fact, the results show that the coaxial system with annular fins has a significant effect on the charging time compared to the reference case without fins. As the number of fins increases, the performance of LHTES increases. |
| Databáze: | OpenAIRE |
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