Overview of PCMs for Concentrated Solar Power in the Temperature Range 200 to 350°C

Abstract:

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Thermal energy storage is an essential advantage of solar thermal power plants. The present paper focuses on latent heat storage using a phase change material (PCM). The paper lists literature and gives the current status of PCM work in the temperature range 200 to 350 °C. The system KNO3-NaNO3 is discussed in detail in terms of their thermo-physical properties in the liquid and solid phase. A comparison of literature data and own measurements for the density, heat capacity, thermal diffusivity and thermal conductivity is presented. Measurement results with the following methods are discussed: helium pycnometer, differential scanning calorimeter (DSC) and laser flash. Missing data of the thermal diffusivity and thermal conductivity are partly supplemented. Consistent thermo-physical properties in the liquid phase are presented.

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Periodical:

Edited by:

Pietro VINCENZINI, Kunihito KOUMOTO, Nicola ROMEO and Mark MEHOS

Pages:

272-277

DOI:

10.4028/www.scientific.net/AST.74.272

Citation:

T. Bauer et al., "Overview of PCMs for Concentrated Solar Power in the Temperature Range 200 to 350°C", Advances in Science and Technology, Vol. 74, pp. 272-277, 2010

Online since:

October 2010

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Price:

$35.00

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