96151 20230126102837.0 doi 10.3390/en13184687 sideral 120577 ART-2020-120577 eng Martínez, A. Characterization of thermophysical properties of phase change materials using unconventional experimental technologies 2020 Access copy available to the general public Unrestricted The growing interest in developing applications for the storage of thermal energy (TES) is highly linked to the knowledge of the properties of the materials that will be used for that purpose. Likewise, the validity of representing processes through numerical simulations will depend on the accuracy of the thermal properties of the materials. The most relevant properties in the characterization of phase change materials (PCM) are the phase change enthalpy, thermal conductivity, heat capacity and density. Differential scanning calorimetry (DSC) is the most widely used technique for determining thermophysical properties. However, several unconventional methods have been proposed in the literature, mainly due to overcome the limitations of DSC, namely, the small sample required which is unsuitable for studying inhomogeneous materials. This paper presents the characterization of two commercial paraffins commonly used in TES applications, using methods such as T-history and T-melting, which were selected due to their simplicity, high reproducibility, and low cost of implementation. In order to evaluate the reliability of the methods, values calculated with the proposed alternative methods are compared with the results obtained by DSC measurements and with the manufacturer’s technical datasheet. Results obtained show that these non-conventional techniques can be used for the accurate estimation of selected thermal properties. A detailed discussion of the advantage and disadvantage of each method is given. info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 3.004 2020 ENERGY & FUELS 70 / 114 = 0.614 2020 Q3 T2 0.597 2020 Control and Optimization 2020 Q2 Electrical and Electronic Engineering 2020 Q2 Renewable Energy, Sustainability and the Environment 2020 Q2 Energy Engineering and Power Technology 2020 Q2 Fuel Technology 2020 Q2 Energy (miscellaneous) 2020 Q2 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Carmona, M. Cortés, C. Universidad de Zaragoza (orcid)0000-0001-6665-5331 Arauzo, I. Universidad de Zaragoza (orcid)0000-0001-5473-6919 5004 590 Universidad de Zaragoza Dpto. Ingeniería Mecánica Área Máquinas y Motores Térmi. 13, 18 (2020), 4687 [23 pp] ENERGIES Energies 1996-1073 740438 http://zaguan.unizar.es/record/96151/files/texto_completo.pdf Versión publicada 481547 http://zaguan.unizar.es/record/96151/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:96151 articulos driver 2023-01-26-09:55:05 ARTICLE