NPG–TRIS Thermal Storage System. Quantification of the Limiting Processes: Sublimation and Water’s Adsorption: Sublimation and water’s adsorption
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2021-10-05
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Abstract
The NPG–TRIS binary system (NPG = (CH3)2C(CH2OH)2 = 2,2-dimetyl-1,3-propanodiol; TRIS = NH2C(CH2OH)3 = 2-Amino-2-(hydroxymethyl)-1,3-propanediol) was intensively investigated as a thermal energy storage system, due to the reversibility of its phase transitions and their associated energy. An adapted methodology was applied to precisely quantify its sublimation tendency. Relevant thermochemical data were revisited and evaluated using some specific experimental procedures. We also determined that the widely accepted requirement of working in an inert atmosphere to avoid deviations due to hygroscopicity is not necessary. Nevertheless, to take advantage of the energetic properties of the NPG–TRIS system, closed containers will be required to avoid NPG losses, due to its quantitatively determined high sublimation tendency.
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Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
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Thermal energy storage , Phase change materials , Thermophysical properties , Thermal energy storage , Phase change materials , Thermophysical properties , General Chemical Engineering , General Materials Science , Condensed Matter Physics , Inorganic Chemistry , Funding Info , This study was financially supported by the Basque Government (IT1301-19, IT1364-19) and through the Elkartek18 R&D program, by the University of the Basque Country UPV/EHU (GIU19/019), and by the Ministry of Science and Innovation of Spain (PID2019-106644GB-I00) , This study was financially supported by the Basque Government (IT1301-19, IT1364-19) and through the Elkartek18 R&D program, by the University of the Basque Country UPV/EHU (GIU19/019), and by the Ministry of Science and Innovation of Spain (PID2019-106644GB-I00)
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De La Pinta , N , Santos-Moreno , S , Doppiu , S , Igartua , J M , Palomo del Barrio , E & López , G A 2021 , ' NPG–TRIS Thermal Storage System. Quantification of the Limiting Processes: Sublimation and Water’s Adsorption : Sublimation and water’s adsorption ' , Crystals , vol. 11 , no. 10 , 1200 , pp. 1200 . https://doi.org/10.3390/cryst11101200