Melting performance enhancement of a phase change material using branched fins and nanoparticles for energy storage applications
| Autor: | Fakhar ul Hasnain, Muhammad Irfan, Lehar Asip Khan, Muhammad Mahabat Khan, Hassan Farooq Ahmed |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Fin
Materials science Renewable Energy Sustainability and the Environment 020209 energy Energy Engineering and Power Technology Nanoparticle 02 engineering and technology 021001 nanoscience & nanotechnology Thermal energy storage Phase-change material Energy storage Volume (thermodynamics) Latent heat Heat transfer 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering Composite material 0210 nano-technology |
| Zdroj: | Journal of Energy Storage. 38:102513 |
| ISSN: | 2352-152X |
| Popis: | This study presents the application of branched fins and nanoparticles to enhance the melting of phase change material (PCM) placed in a horizontally configured latent heat thermal energy storage (LHTES) unit. The mathematical model governing the transient melting of PCM is numerically solved for 2D planar geometries. The numerical solution procedure is validated against literature as well as our experimental results. First, the effects of different fin designs on melting performance are analyzed using pure PCM. All-straight, single-branched and double-branched fin designs are seen to enhance melting through efficient heat transfer resulting in time savings of 22.9%, 35.4% and 45.9%, respectively, as compared to a Y-oriented triple-fin Base Case. Additionally, the energy storage capacity is observed to increase in the same order with the double-branched design storing the highest at ∼ 3600 kJ. Next, the combined effects of the most efficient double-branched fin design and Al2O3 nanoparticles on melting performance are assessed. An addition of 1%, 5% and 10% nanoparticles by volume in the PCM results in an additional time savings of 11.5%, 19.2% and 26.8%, respectively, taking pure PCM case as the reference. The corresponding energy storage, however, is seen to decrease with an increase in the nanoparticles concentration. |
| Databáze: | OpenAIRE |
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