Comparative thermal study of octadecane-based shape-stable materials for thermal energy storage.
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| Title: | Comparative thermal study of octadecane-based shape-stable materials for thermal energy storage. |
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| Authors: | RAWAT, PANKAJ SINGH1 (AUTHOR), JOSHI, DEEPIKA P1 (AUTHOR) deepika.joshi@gbpuat-cbsh.ac.in, BORA, NEETU1 (AUTHOR) |
| Source: | Pramana: Journal of Physics. Sep2025, Vol. 99 Issue 3, p1-11. 11p. |
| Subjects: | Phase change materials, Octadecane, Latent heat, Heat storage, Silica, Thermal properties, Polypyrrole |
| Abstract: | Phase-change materials (PCMs) are proving to be a centre of attraction for the scientific community due to their ability to store thermal energy, thereby resolving the energy crisis issue. The present work is an attempt to investigate the shape stability and the thermal properties of octadecane/polypyrrole and octadecane/silica composite PCMs; consisting of different weight percentages of polypyrrole and silica, respectively. A direct melt-mixing route has been used to synthesise composite PCMs. X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, field emission scanning electron spectroscopy (FE-SEM), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) have been used to investigate various properties of the prepared composites. In addition, a leakage test has been carried out for more than 500 thermal cycles at 45 ∘ C, for 30 min per cycle in a hot air oven to investigate the shape stability of composite PCMs. The XRD pattern and FTIR spectra confirm the successful synthesis of composite PCMs without any chemical reaction between individual components. Octadecane/polypyrrole composite containing 20 wt% polypyrrole (OCT/PPY-2) shows less leakage than octadecane/silica composite PCM having 20 wt% silica OCT/SC-2 and confirms its better shape stability. OCT/PPY-2 shows higher latent heat of fusion than OCT/SC-2 composite with almost the same thermal stability. In conclusion, the OCT/PPY-2 composite performs better than the OCT/SC-2 composite and is a more suitable candidate for thermal energy storage in low-temperature thermal energy storage systems. [ABSTRACT FROM AUTHOR] |
| Copyright of Pramana: Journal of Physics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
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| Header | DbId: egs DbLabel: Engineering Source An: 186782581 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Comparative thermal study of octadecane-based shape-stable materials for thermal energy storage. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22RAWAT%2C+PANKAJ+SINGH%22">RAWAT, PANKAJ SINGH</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22JOSHI%2C+DEEPIKA+P%22">JOSHI, DEEPIKA P</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> deepika.joshi@gbpuat-cbsh.ac.in</i><br /><searchLink fieldCode="AR" term="%22BORA%2C+NEETU%22">BORA, NEETU</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Pramana%3A+Journal+of+Physics%22">Pramana: Journal of Physics</searchLink>. Sep2025, Vol. 99 Issue 3, p1-11. 11p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Phase+change+materials%22">Phase change materials</searchLink><br /><searchLink fieldCode="DE" term="%22Octadecane%22">Octadecane</searchLink><br /><searchLink fieldCode="DE" term="%22Latent+heat%22">Latent heat</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+storage%22">Heat storage</searchLink><br /><searchLink fieldCode="DE" term="%22Silica%22">Silica</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+properties%22">Thermal properties</searchLink><br /><searchLink fieldCode="DE" term="%22Polypyrrole%22">Polypyrrole</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Phase-change materials (PCMs) are proving to be a centre of attraction for the scientific community due to their ability to store thermal energy, thereby resolving the energy crisis issue. The present work is an attempt to investigate the shape stability and the thermal properties of octadecane/polypyrrole and octadecane/silica composite PCMs; consisting of different weight percentages of polypyrrole and silica, respectively. A direct melt-mixing route has been used to synthesise composite PCMs. X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, field emission scanning electron spectroscopy (FE-SEM), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) have been used to investigate various properties of the prepared composites. In addition, a leakage test has been carried out for more than 500 thermal cycles at 45 ∘ C, for 30 min per cycle in a hot air oven to investigate the shape stability of composite PCMs. The XRD pattern and FTIR spectra confirm the successful synthesis of composite PCMs without any chemical reaction between individual components. Octadecane/polypyrrole composite containing 20 wt% polypyrrole (OCT/PPY-2) shows less leakage than octadecane/silica composite PCM having 20 wt% silica OCT/SC-2 and confirms its better shape stability. OCT/PPY-2 shows higher latent heat of fusion than OCT/SC-2 composite with almost the same thermal stability. In conclusion, the OCT/PPY-2 composite performs better than the OCT/SC-2 composite and is a more suitable candidate for thermal energy storage in low-temperature thermal energy storage systems. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Pramana: Journal of Physics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s12043-025-02945-0 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 11 StartPage: 1 Subjects: – SubjectFull: Phase change materials Type: general – SubjectFull: Octadecane Type: general – SubjectFull: Latent heat Type: general – SubjectFull: Heat storage Type: general – SubjectFull: Silica Type: general – SubjectFull: Thermal properties Type: general – SubjectFull: Polypyrrole Type: general Titles: – TitleFull: Comparative thermal study of octadecane-based shape-stable materials for thermal energy storage. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: RAWAT, PANKAJ SINGH – PersonEntity: Name: NameFull: JOSHI, DEEPIKA P – PersonEntity: Name: NameFull: BORA, NEETU IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 09 Text: Sep2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 03044289 Numbering: – Type: volume Value: 99 – Type: issue Value: 3 Titles: – TitleFull: Pramana: Journal of Physics Type: main |
| ResultId | 1 |
