Overview of PCMs for Concentrated Solar Power in the Temperature Range 200 to 350°C
| Periodical | Advances in Science and Technology (Volume 74) |
|---|---|
| Main Theme | 5th FORUM ON NEW MATERIALS PART C |
| Edited by | Pietro VINCENZINI, Kunihito KOUMOTO, Nicola ROMEO and Mark MEHOS |
| Pages | 272-277 |
| DOI | 10.4028/www.scientific.net/AST.74.272 |
| Citation | Thomas Bauer et al., 2010, Advances in Science and Technology, 74, 272 |
| Online since | October, 2010 |
| Authors | Thomas Bauer, Doerte Laing, Rainer Tamme |
| Keywords | Phase Change Material (PMC), Potassium Nitrate, Sodium Nitrate, Solar-Thermal |
| Price | US$ 28,- |
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.
