New proposed methodology for specific heat capacity determination of materials for thermal energy storage (TES) by DSC
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Show full item recordcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7035
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https://doi.org/10.1016/j.est.2017.02.002 |
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Title
New proposed methodology for specific heat capacity determination of materials for thermal energy storage (TES) by DSCDate
2017-06Publisher
ElsevierBibliographic citation
FERRER, Gerard, et al. New proposed methodology for specific heat capacity determination of materials for thermal energy storage (TES) by DSC. Journal of Energy Storage, 2017, 11: 1-6.Type
info:eu-repo/semantics/articlePublisher version
https://www.sciencedirect.com/science/article/pii/S2352152X1630158XVersion
info:eu-repo/semantics/publishedVersionSubject
Abstract
This study presents a methodology to determine the specific heat capacity (Cp) of materials for thermal energy storage (TES) by DSC. These materials have great energy storage capacities, and due to that, important ... [+]
This study presents a methodology to determine the specific heat capacity (Cp) of materials for thermal energy storage (TES) by DSC. These materials have great energy storage capacities, and due to that, important heat flow fluctuations can be observed for each temperature differential, taking more time to reach a desired temperature gradient. Three different DSC methods are considered to be applied in the methodology, and are explained and compared in this study in order to select the most proper one for Cp determination. To perform this study, the Cp of three materials commonly used in sensible TES systems, slate, water, and potassium nitrate (KNO3), is determined. Excellent results with errors lower than 3% are obtained when using the proposed methodology with the areas method. Worse results are obtained with both dynamic and isostep methods, with errors up to 6% and 16% respectively, as a consequence of sensitivity problems during the measurements. [-]
Investigation project
Spanish government (ENE2015-64117-C5-1-R (MINECO/FEDER)) ; Catalan Government (research groups GREA (2014 SGR 123)) and (research group DIOPMA (2014 SGR 1543)) ; European Union's Seventh Framework Programme (FP7/2007-2013) under grant agreement no PIRSES-GA-2013-610692 (INNOSTORAGE) ; European Union’s Horizon 2020 research and innovation programme under grant agreement No 657466 (INPATH-TES); Ministerio de Economia y Competitividad de España for Grant Juan de la Cierva (FJCI-2014-22886)Rights
© 2017 Elsevier Ltd. All rights reserved.
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