Review and characterisation of high-temperature phase change material candidates between 500 C and 700°C

Ming Liu, Ehsan Shamil Omaraa, Jia Qi, Pegah Haseli, Jumal Ibrahim, Dmitry Sergeev, Michael Müller, Frank Bruno and Peter Majewski

Renewable and Sustainable Energy Reviews, 2021, vol. 150, issue C

Abstract: Latent heat thermal energy storage, by using phase change materials (PCMs), is considered as a promising technology that can be integrated into concentrated solar power (CSP) applications to mitigate the load and electricity supply. Multiple PCMs connected in series has attracted considerable research attention as this configuration has the potential to improve the thermal performance compared to single PCM storage. However, this technology has not yet been deployed in commercial CSP plants. One of the major restrictions is the lack of reliable thermophysical property data for high temperature PCMs. This study gives a broad review of the experimentally verified PCMs with melting temperatures from approximately 500 °C–700 °C, applicable to CSP systems. A further twelve PCM candidates, containing low-cost sodium and/or potassium salts, were identified in this study and their thermophysical properties were experimentally evaluated. It was found that nine of the new candidates can be used as PCMs.

Keywords: Phase change material; Phase diagram; Differential scanning calorimetry; Phase change temperature; Phase change enthalpy; Specific heat capacity (search for similar items in EconPapers)
Date: 2021
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Citations: View citations in EconPapers (3)

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DOI: 10.1016/j.rser.2021.111528

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