Abstract
In this experimental study, we explore the potential enhancements in thermal conductivity while investigating alterations in latent heat and phase change temperature within Composite Phase Change Materials (PCMs). These composites consist of Paraffin Wax (PW) as the base material, incorporating dispersed conducting Polyaniline (PANI) powder in varying concentrations ranging from 1% wt. to 4% wt. The mass fractions of PANI added to PW include 1%, 2%, 3%, and 4%, and the composite PCMs are meticulously prepared through ultrasonication. Examining the surface morphology of Composite Phase Change Materials (PCMs) involved utilizing a Scanning Electron Microscope (SEM), while the determination of thermal conductivity employed a Heat Flow Meter. Additionally, latent heat and phase change temperatures were assessed through Differential Scanning Calorimetry (DSC). The obtained results indicate an augmentation in the thermal conductivity of the composites when compared to Paraffin Wax (PW). Specifically, thermal conductivity exhibited a 40% increase for 1% wt. of PANI, yet experienced a subsequent decline for the remaining weight percentages. Furthermore, the latent heat and phase change temperatures of the composites were observed to decrease in comparison to PW. These composite PCMs with enhanced thermal conductivity, achieved through the incorporation of Polyaniline in Paraffin Wax, are highly potential for several applications in energy storage systems, thermal regulation devices, and heat management technologies.
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No datasets were generated or analysed during the current study.
Abbreviations
- °C :
-
Degree centigrade
- K :
-
Thermal conductivity, W/(mK)
- k comp :
-
Thermal conductivity of composite PCMs, W/(mK)
- k pw :
-
Thermal conductivity of PW, W/(mK)
- ΔHcomp :
-
Latent heat of composite PCMs, kJ/kg
- ΔHpw :
-
Latent heat of PW, kJ/kg
- mW :
-
Milli Watts
- %Wt. :
-
Percent weight
- Ψ :
-
Psi, %
- DSC:
-
Differential Scanning Calorimetry
- PANI:
-
Polyaniline
- SEM:
-
Scanning Electron Microscope
- PW:
-
Paraffin Wax
- PWPA:
-
Paraffin Wax Polyaniline
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Acknowledgements
The authors extend their appreciation to the Deanship of Scientific Research at King Khalid University for funding this work through small group Research Project under grant number RGP 1/80/44. The authors would like to acknowledge the support provided by the iRMC of Universiti Tenaga Nasional (UNITEN), School of Science, Edith Cowan University, Australia, and the School of Engineering, Technology, Central Queensland University Australia, Melbourne, VIC 3000, Australia.
Funding
The authors extend their appreciation to the Deanship of Scientific Research at King Khalid University for funding this work through small group Research Project under grant number RGP 1/80/44.
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J. Emeema, and M. Govindarajan: performed the experimental work, visualization, data analysis, and writing the manuscript draft, B. V. Reddi, M. Murugan, E. P. Venkatesan, C. A. Saleel, M. Alwetaishi, and S. Shaik: Discussion, Data curation, Data Analytics, and writing and review the manuscript, and M.Nur-E-Alam, and M.E.M. Soudagar: Visualization, Validation, Data curation, Data Analytics, supervision, and writing and review the manuscript.
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Janumala, E., Govindarajan, M., Reddi, B.V. et al. Exploring thermal dynamics of polyaniline-modified paraffin wax phase change material with varied PANI loadings (1–4% wt.). Heat Mass Transfer 60, 977–986 (2024). https://doi.org/10.1007/s00231-024-03454-3
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DOI: https://doi.org/10.1007/s00231-024-03454-3