Abstract
The present work outlines the development of eutectic phase change material in different mass fraction ratio and determining its thermal properties. The eutectic mixture was prepared by using polyethylene glycol (PEG) of atomic weight 10 000 and 6000. The eutectic was prepared by using single-step stirring and blending methods. Phase transition temperature and fusion latent heat were evaluated by differential scanning calorimetry (DSC) technique. The variation in chemical composition of the eutectics was analyzed by using Fourier transform infrared spectroscopy (FT-IR) analysis. The sample was prepared in the mass fraction ratio difference of 10%. The result shows that the sample containing PEG 6000 and PEG 10 000 in the ratio of 60:40 possesses maximum latent heat of fusion which is 194.52 J·g−1. In order to know the durability of the eutectic PCM, acceleration thermal melt/freeze cycles test in an in-house designed cycle tester was carried out for 1500 cycles. The stability of the eutectic was evaluated by thermal gravimetric analysis (TGA) analysis. These findings reveal that the variation in latent heat of fusion is not more than 15% and the chemical properties does not show any changes in the function group after 1500 cycles. The comparison result suggests that the prepared eutectic PCMs can be a probable candidate in medium-temperature range for solar-based energy storage applications.
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Acknowledgements
The author would like to thank Central analytical facility and Nicop research Lab, Manipal University Jaipur and Central Instrumentation Facility of Jiwaji University, Gwalior for providing the characterization facility.
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This research is financially supported by the Manipal University Jaipur under the grant of the Endowment Fund (EF/2017-18/QE04-04).
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PS and AKA helped in formal analysis, writing original draft. RKS helped in reviewing and editing the manuscript PK assisted in preparing the figure. RK contributed for conceptualization and data curation. AK was in involved in analysis and reviewing.
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Singh, P., Ansu, A.K., Sharma, R.K. et al. Development, Thermal Properties, and Reliability Testing of Eutectic Polyethylene Glycol as Phase Change Materials for Thermal Energy Storage Applications. Int J Thermophys 44, 39 (2023). https://doi.org/10.1007/s10765-022-03146-2
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DOI: https://doi.org/10.1007/s10765-022-03146-2