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Overview of PCMs for concentrated solar power in the temperature range 200 to 350 °C

Bauer, Thomas and Laing, Dörte and Tamme, Rainer (2010) Overview of PCMs for concentrated solar power in the temperature range 200 to 350 °C. Advances in Science and Technology, 74, pp. 272-277. DOI: 10.4028/www.scientific.net/AST.74.272. ISSN 1661-819X.

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Official URL: http://www.scientific.net/AST.74.272

Abstract

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.

Document Type:Article
Title:Overview of PCMs for concentrated solar power in the temperature range 200 to 350 °C
Authors:
AuthorsInstitution or Email of Authors
Bauer, ThomasUNSPECIFIED
Laing, DörteUNSPECIFIED
Tamme, RainerUNSPECIFIED
Date:October 2010
Journal or Publication Title:Advances in Science and Technology
Refereed publication:Yes
In SCOPUS:No
In ISI Web of Science:No
Volume:74
DOI:10.4028/www.scientific.net/AST.74.272
Page Range:pp. 272-277
ISSN:1661-819X
Status:Published
Keywords:Phase change material, Sodium Nitrate, Potassium Nitrate, Solar Thermal
HGF - Research field:Energy
HGF - Program:Efficient Energy Conversion (old)
HGF - Program Themes:E EV - Energy process technology (old)
DLR - Research area:Energy
DLR - Program:E EV - Energy process technology
DLR - Research theme (Project):E - Thermochemische Prozesse (old)
Location: Stuttgart
Institutes and Institutions:Institute of Technical Thermodynamics > Thermal Process Technology
Deposited By: Dr.phil. Thomas Bauer
Deposited On:10 Nov 2010 13:10
Last Modified:04 Apr 2013 16:24

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