Solvothermal method as a green chemistry solution for micro-encapsulation of phase change materials for high temperature thermal energy storage

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ID: 79133
2018
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Abstract
Thermal energy storage systems using phase change materials (PCMs) as latent heat storage are one of the main challenges at European level in improving the performances and efficiency of concentrated solar power energy generation due to their high energy density. PCM with high working temperatures in the temperature range 300–500 °C are required for these purposes. However their use is still limited due to the problems raised by the corrosion of the majority of high temperature PCMs and lower thermal transfer properties. Micro-encapsulation was proposed as one method to overcome these problems. Different micro-encapsulation methods proposed in the literature are presented and discussed. An original process for the micro-encapsulation of potassium nitrate as PCM in inorganic zinc oxide shells based on a solvothermal method followed by spray drying to produce microcapsules with controlled phase composition and distribution is proposed and their transformation temperatures and enthalpies measured by differential scanning calorimetry are presented.
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Authors Ioan, Tudor Albert;Mihail, Motoc Adrian;Florentina, Ciobota Cristina;Nastase, Ciobota Dan.;Robert, Piticescu Radu;Dolores, Romero-Sanchez Maria;
Journal manufacturing review
Year 2018
DOI
DOI not found
URL
https://doi.org/10.1051/mfreview/2018004
Keywords
microscopy Medicine (General) Materials of engineering and construction. Mechanics of materials Technology (General) Chemical technology Engineering (General). Civil engineering (General) Technology Electrical engineering. Electronics. Nuclear engineering Descriptive and experimental mechanics Science physics manufactures

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