NPG–TRIS Thermal Storage System. Quantification of the Limiting Processes: Sublimation and Water’s Adsorption

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...

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Bibliographic Details
Published in:Crystals (Basel) 2021-10, Vol.11 (10), p.1200
Main Authors: De La Pinta, Noelia, Santos-Moreno, Sergio, Doppiu, Stephania, Igartua, Josu M., Palomo del Barrio, Elena, López, Gabriel A.
Format: Article
Language:English
Subjects:
Alternative energy sources
Aluminum
Containers
Energy resources
Energy storage
Heat
Humidity
Hygroscopicity
Inert atmospheres
Laboratories
phase change materials
Phase transitions
Solids
Sublimation
Temperature
Thermal energy
thermal energy storage
Thermal storage
thermophysical properties
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Summary: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.
ISSN:2073-4352
2073-4352
DOI:10.3390/cryst11101200