Issue |
E3S Web of Conf.
Volume 488, 2024
1st International Conference on Advanced Materials & Sustainable Energy Technologies (AMSET2023)
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Article Number | 01008 | |
Number of page(s) | 18 | |
Section | Advanced Energy Storage & Conversion | |
DOI | https://doi.org/10.1051/e3sconf/202448801008 | |
Published online | 06 February 2024 |
Thermal energy storage behaviour of form-stable polyethylene glycol/MWCNT- based phase change materials
1 Faculty of Mechanical & Automotive Engineering Technology, University Malaysia Pahang, 26600 Pekan, Pahang, Malaysia
2 Research Centre for Nano-Materials and Energy Technology (RCNMET), School of Engineering and Technology, Sunway University, No. 5, Jalan Universiti, Bandar Sunway, Petaling Jaya 47500, Selangor Darul Ehsan, Malaysia
3 Center for Transdisciplinary Research (CFTR), Saveetha Institute of Medical and Technical Science, Saveetha University, Chennai, India
4 Institute of Sustainable Energy, Universiti Tenaga Nasional (@The National Energy University), Jalan IKRAM-UNITEN, Kajang, Selangor, Malaysia
5 Institute of Sustainable Energy, Universiti Tenaga Nasional (National Energy University), Jalan IKRAM-UNITEN, Kajang, Selangor, Malaysia.
Division of Research and Development, Lovely Professional University, Phagwara, Punjab, 144411, India.
* Corresponding author: mahendran@ump.edu.my; adarsh.889@gmail.com
Organic phase change materials (OPCMs) possess a remarkable ability to absorb and release latent heat during phase transitions, making them very promising for storing solar energy. Nevertheless, the extensive use of these materials encounters substantial obstacles arising from intrinsic difficulties, such as limited heat conductivity and chemical stability concerns. The authors of this innovative work have successfully led the way in developing a state-of-the-art nano-enhanced organic phase change material (Ne-OPCM). This novel substance utilizes polyethylene glycol (PEG) as the primary phase transition material, which is smoothly incorporated into a network of polymethyl methacrylate (PMMA) to reduce obstacles caused by molecular size and improve chemical durability. In order to overcome the issue of poor thermal conductivity, the researchers selectively used multi-walled carbon nanotubes (MWCNT) as a conductive filler. This resulted in a significant increase in the thermal conductivity of PEG-1000. In an ongoing study, thermal characteristics of the developed (Ne-OPCM) composites are evaluated for different weight fractions of 0.3 %, 0.7 %, and 1.0 % of MWCNT. In addition to the morphology, thermal property, chemical stability, optical absorptivity and the latent heat of the developed PEG-PMMA/MWCNT (Ne-OPCM) composite are evaluated using FESEM, FT-IR, UV-Vis spectroscopy TGA and DSC instruments. The thermal conductivity of PEG-PMMA/MWCNT (Ne-OPCM) composite was improved by 87.64 % with a dispersion of 0.7 wt% of MWCNT. The DSC conducted highest latent heat and melting point of a PEG-PMMA/MWCNT (NePCM) composite are 139.66 J/g & 40.4 °C occurring at 0.7 wt% of MWCNT. Consequently, the developed (Ne-OPCM) composites have promising potential in practical solar energy storage applications at the temperature range of 35-40 °C.
Key words: Polyethylene glycol / polymethyl methacrylate / thermal energy storage / chemical stability / steric hindrance
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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