Jacob, Jeeja and Pandey, A. K. and Abd Rahim, Nasrudin and Selvaraj, Jeyraj and Paul, John (2024) Multi-wall carbon nanotubes tailored eutectic composites for solar energy harvesting. Energy, 288. ISSN 0360-5442, DOI https://doi.org/10.1016/j.energy.2023.129777.
Full text not available from this repository.Abstract
Carbonaceous thermal energy storage involving PCMs has gained an increasing research interest owing to their higher thermal conductivity and energy storage density. The current work analyses the thermophysical properties of a nano-enhanced eutectic phase change material (NeUPCM) laden with different concentrations (ranges from 0 wt% - 0.7 wt%) of multi-wall carbon nanotube (MWCNT). Paraffin wax-palmitic acid (PW-PA) binary eutectic was produced initially by facile melt blending, and then MWCNTs were doped via standard two-step nanocomposite synthesis protocol. Nanocomposites showed a slower decomposition rate, and the thermal resistance index improved. MWCNT enhance the thermal conductivity of the eutectic base (140 %), which reaches a maximum value of 0.619 W/(m & sdot;K) for 0.5 wt% loadings, and the maximum increment of 13.2 % of latent heat was noted for 0.7 wt% loading of MWCNT (which is having a melting temperature of 53 degrees C). The sample doped with 0.5 wt% MWCNT(C3) showed the highest thermal effusivity. The NeUPCMs also displayed improved photothermal performance and solar absorptivity. Corrosion analysis against copper revealed that the composite is suitable for long-term usage. The NeUPCMs maintained good reliability even after 500 melt-freeze cycles. In short, the proposed NeUPCMs hold significant potential to be employed for thermal energy storage purposes.
| Item Type: | Article |
|---|---|
| Funders: | UM Power Energy Dedicated Advanced Centre (UMPEDAC) , Japan International Cooper- ation Agency [IF005-2021], UM Power Energy Dedicated Advanced Centre (UMPEDAC) , Japan International Cooper- ation Agency [IF034-2022], UM Power Energy Dedicated Advanced Centre (UMPEDAC) , Japan International Cooper- ation Agency [MG009-2023], Higher Institution Centre of Excellence (HICoE) Program Research Grant, UMPEDAC-2020 (MOHE HICOE-UMPEDAC), UM Power Energy Dedicated Advanced Centre (UMPEDAC), Japan International Cooperation Agency for AUN/SEED-Net on Collaboration Education Program [PUM CE1901], Japan ASEAN Collaborative Education Program (JACEP) [IF005-2021], Japan ASEAN Collaborative Education Program (JACEP) [IF034-2022], Smart Building Energy Management System Suitable for Tropical Climate Countries [MG009-2023], Ministry of Education Malaysia and University of Malaya, Sunway University via Sunway University |
| Uncontrolled Keywords: | Thermal effusivity; Thermal cycling; Photothermal conversion; Thermal energy storage; Corrosion analysis |
| Subjects: | T Technology > TP Chemical technology |
| Divisions: | Deputy Vice Chancellor (Research & Innovation) Office > UM Power Energy Dedicated Advanced Centre |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 28 Jun 2024 08:22 |
| Last Modified: | 28 Jun 2024 08:22 |
| URI: | http://eprints.um.edu.my/id/eprint/44267 |
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