Journal
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
Volume 44, Issue 13, Pages 10044-10057Publisher
WILEY
DOI: 10.1002/er.5615
Keywords
1-tetradecanoic acid; enhanced thermal conductivity; form-stable composite PCM; thermal energy storage; titanium dioxide
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Funding
- Manipal University Jaipur [EF/2017-18/QE04-04]
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The present study focused on the preparation of form-stable composites of 1-tetradecanoic acid (TDA)/titanium dioxide (TiO2) powder via a facile impregnation method. The use of powdered TiO(2)as porous material and thermal conductivity enhancer for TDA is a novel attempt. The morphological, chemical, and crystalline properties of form-stable composite PCMs (Fs-CPCMs), containing different amounts of TiO2, were characterized using field emission scanning electron microscope, Fourier transform infrared spectroscopy, and X-ray diffraction techniques. The finding supports that the produced composites were chemically and structurally stable. The latent heat storage (LHS) properties of composites were obtained from differential scanning calorimeter instrument, and the findings revealed that the Fs-CPCM with 50 mass% TDA has a melting temperature of 52.04 degrees C and a considerably good LHS capacity of 97.75 J/g. The thermal conductivity of TDA was increased remarkably by the addition of TiO(2)micro particles. The results obtained from thermogravimetric analysis and thermal cycling test exhibited that the Fs-CPCM, containing 50 mass% TiO2, possesses great thermal degradation durability, cycling chemical stability, and thermal reliability. This composite PCM can be very well used for passive thermal management of electronic devices, automotive components, photovoltaic thermal hybrid designs, solar air/water heating systems, etc.
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