Performance enhancement of a renewable thermal energy collector using metallic oxide nanofluids

2018 ◽  
Vol 13 (2) ◽  
pp. 248-251 ◽  
Author(s):  
Talluri Venkata Raja Sekhar ◽  
Ravi Prakash ◽  
Gopal Nandan ◽  
Marisamy Muthuraman
Keyword(s):  
Thermal Energy ◽  
Performance Enhancement ◽  
Metallic Oxide

scholarly journals The Effects of Fin Parameters on the Solidification of PCMs in a Fin-Enhanced Thermal Energy Storage System

Energies ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 198 ◽  
Author(s):  
Mohammad Javad Zarei ◽  
Hassan Bazai ◽  
Mohsen Sharifpur ◽  
Omid Mahian ◽  
Bahman Shabani
Keyword(s):  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Phase Change Materials ◽  
Performance Enhancement ◽  
Negative Impact ◽  
Storage System ◽  
Metallic Copper ◽  
Energy Storage System ◽  
Optimal Point

In the present study, a triplex-tube, employing fin-enhanced phase change materials (PCMs), as a thermal energy storage (TES) system was studied numerically. The main flaw of the PCMs is their low thermal conductivity that restricts their effectiveness for energy storage applications. Metallic (copper) fins are added to the geometry of the system to improve their function by extending the heat transfer area. The effects of the presence, configuration, and dimensions of copper fins were investigated to understand the best design for minimizing the solidification time and achieving the best performance enhancement for the TES system selected for this study. The results revealed that the best performance belonged to fins with a mix configuration, with an attachment angle of 90° and the length and width of 28 mm and 1 mm, respectively. Using this configuration could reduce the required time for complete solidification by around 42% compared to the system without fins. Moreover, it was concluded that increasing the length of the fin could offer its positive effect for enhancing the performance of TES system up to an optimal point only while increasing the width showed a diverse influence. Furthermore, the angles between the tube surface and the fin direction were investigated and 90° was found to be the best choice for the TES case selected in this study. In addition, placement of the fins on the surface of internal or external tube or mix method did not show a significant effect while placing the fins on the external surface of the tube showed even a negative impact on the performance of the TES system compared with when no fins were applied.

Hybrid thermal performance enhancement of shell and tube latent heat thermal energy storage using nano-additives and metal foam

2021 ◽  
Vol 44 ◽  
pp. 103347
Author(s):  
Khaoula Nedjem ◽  
Mohamed Teggar ◽  
Tarik Hadibi ◽  
Müslüm Arıcı ◽  
Çağatay Yıldız ◽  
...  
Keyword(s):  
Energy Storage ◽  
Latent Heat ◽  
Thermal Performance ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Performance Enhancement ◽  
Metal Foam ◽  
Shell And Tube ◽  
Nano Additives
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