Consistent DSC and TGA Methodology as Basis for the Measurement and Comparison of Thermo-Physical Properties of Phase Change Materials
Autor: | Gabriel Rubio-Pérez, Fernando Aguilar, Natalia Muñoz-Rujas, Lukas Müller, Jörg Worlitschek, Andreas Bach |
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Rok vydání: | 2020 |
Předmět: |
Thermogravimetric analysis
Accuracy and precision Materials science 020209 energy Enthalpy Thermodynamics 02 engineering and technology Thermal energy storage lcsh:Technology Article latent heat storage Differential scanning calorimetry Material selection 0202 electrical engineering electronic engineering information engineering General Materials Science lcsh:Microscopy lcsh:QC120-168.85 thermogravimetric analysis lcsh:QH201-278.5 business.industry lcsh:T thermal energy storage 021001 nanoscience & nanotechnology Phase-change material lcsh:TA1-2040 lcsh:Descriptive and experimental mechanics lcsh:Electrical engineering. Electronics. Nuclear engineering differential scanning calorimetry 0210 nano-technology business lcsh:Engineering (General). Civil engineering (General) phase change material lcsh:TK1-9971 Thermal energy energy |
Zdroj: | Materials Volume 13 Issue 20 Materials, Vol 13, Iss 4486, p 4486 (2020) |
ISSN: | 1996-1944 |
Popis: | Measuring thermo-physical properties of phase change materials (PCM) in a consistent and reliable manner is essential for system layout of thermal energy storages and correspondingly material selection. Only if basic properties are assessed in a comparable way a selection process leads to the top candidate for any given application and thus enhances market penetration of renewable energy sources coupled with thermal energy storage. In this study, we focus on differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) as basic assessment techniques and develop consistent measurement procedures to create a database with comparable results. We show consistency of the measured results through analysis of coefficient of variation (CV), being in the mean 1.69%, 0.05%, 0.06% and 4.00% for enthalpy, melting onset, melting peak and maximum operating temperature, respectively. Overall, 23 PCM have been measured with the presented methodology, which was mainly possible due to the reduced measurement and preparation time per PCM compared to standard techniques, while achieving similar accuracy and precision. |
Databáze: | OpenAIRE |
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