Porosity and density measurements of sodium acetate trihydrate for thermal energy storage

Research output: Contribution to journalJournal article – Annual report year: 2018Researchpeer-review

Standard

Porosity and density measurements of sodium acetate trihydrate for thermal energy storage. / Dannemand, Mark; Delgado, Monica; Lazaro, Ana; Peñalosa, Conchita; Gundlach, Carsten; Trinderup, Camilla Himmelstrup; Johansen, Jakob Berg; Moser, Christoph; Schranszhofer, Hermann; Furbo, Simon.

In: Applied Thermal Engineering, Vol. 131, 2018, p. 707-714.

Research output: Contribution to journalJournal article – Annual report year: 2018Researchpeer-review

Harvard

APA

CBE

MLA

Vancouver

Author

Dannemand, Mark ; Delgado, Monica ; Lazaro, Ana ; Peñalosa, Conchita ; Gundlach, Carsten ; Trinderup, Camilla Himmelstrup ; Johansen, Jakob Berg ; Moser, Christoph ; Schranszhofer, Hermann ; Furbo, Simon. / Porosity and density measurements of sodium acetate trihydrate for thermal energy storage. In: Applied Thermal Engineering. 2018 ; Vol. 131. pp. 707-714.

Bibtex

@article{f39670478a6743ca8465ceaf298183d1,
title = "Porosity and density measurements of sodium acetate trihydrate for thermal energy storage",
abstract = "Sodium acetate trihydrate (SAT) can be used as phase change material in latent heat storage with or without utilizing supercooling. The change of density between liquid to solid state leads to formation of cavities inside the bulk SAT during solidification. Samples of SAT which had solidified from supercooled state at ambient temperature and samples which had solidified with a minimal degree supercooled were investigated. The temperature dependent densities of liquid and the two types of solid SAT were measured with a density meter and a thermomechanical analyzer. The cavities formed inside samples of solid SAT, which had solidified after a high or minimal degree of supercooling, were investigated by X-ray scanning and computer tomography. The apparent density of solid SAT depended on whether it solidified from a supercooled state or not. A sample which solidified from a supercooled liquid contained 15{\%} cavities and had a density of 1.26 g/cm3 at 25 °C. SAT which had solidified with minimal supercooling contained 9{\%} cavities and had a density of 1.34 g/cm3 at 25 °C. The apparent densities of the solid SAT samples were significant lower than the value of solid SAT reported in literature of 1.45 g/cm3. The density of liquid and supercooled SAT with extra water was also determined at different temperatures.",
keywords = "Sodium acetate trihydrate, Density, Phase change material, X-ray tomography, Thermal energy storage, Cavity",
author = "Mark Dannemand and Monica Delgado and Ana Lazaro and Conchita Pe{\~n}alosa and Carsten Gundlach and Trinderup, {Camilla Himmelstrup} and Johansen, {Jakob Berg} and Christoph Moser and Hermann Schranszhofer and Simon Furbo",
year = "2018",
doi = "10.1016/j.applthermaleng.2017.12.052",
language = "English",
volume = "131",
pages = "707--714",
journal = "Applied Thermal Engineering",
issn = "1359-4311",
publisher = "Pergamon Press",

}

RIS

TY - JOUR

T1 - Porosity and density measurements of sodium acetate trihydrate for thermal energy storage

AU - Dannemand, Mark

AU - Delgado, Monica

AU - Lazaro, Ana

AU - Peñalosa, Conchita

AU - Gundlach, Carsten

AU - Trinderup, Camilla Himmelstrup

AU - Johansen, Jakob Berg

AU - Moser, Christoph

AU - Schranszhofer, Hermann

AU - Furbo, Simon

PY - 2018

Y1 - 2018

N2 - Sodium acetate trihydrate (SAT) can be used as phase change material in latent heat storage with or without utilizing supercooling. The change of density between liquid to solid state leads to formation of cavities inside the bulk SAT during solidification. Samples of SAT which had solidified from supercooled state at ambient temperature and samples which had solidified with a minimal degree supercooled were investigated. The temperature dependent densities of liquid and the two types of solid SAT were measured with a density meter and a thermomechanical analyzer. The cavities formed inside samples of solid SAT, which had solidified after a high or minimal degree of supercooling, were investigated by X-ray scanning and computer tomography. The apparent density of solid SAT depended on whether it solidified from a supercooled state or not. A sample which solidified from a supercooled liquid contained 15% cavities and had a density of 1.26 g/cm3 at 25 °C. SAT which had solidified with minimal supercooling contained 9% cavities and had a density of 1.34 g/cm3 at 25 °C. The apparent densities of the solid SAT samples were significant lower than the value of solid SAT reported in literature of 1.45 g/cm3. The density of liquid and supercooled SAT with extra water was also determined at different temperatures.

AB - Sodium acetate trihydrate (SAT) can be used as phase change material in latent heat storage with or without utilizing supercooling. The change of density between liquid to solid state leads to formation of cavities inside the bulk SAT during solidification. Samples of SAT which had solidified from supercooled state at ambient temperature and samples which had solidified with a minimal degree supercooled were investigated. The temperature dependent densities of liquid and the two types of solid SAT were measured with a density meter and a thermomechanical analyzer. The cavities formed inside samples of solid SAT, which had solidified after a high or minimal degree of supercooling, were investigated by X-ray scanning and computer tomography. The apparent density of solid SAT depended on whether it solidified from a supercooled state or not. A sample which solidified from a supercooled liquid contained 15% cavities and had a density of 1.26 g/cm3 at 25 °C. SAT which had solidified with minimal supercooling contained 9% cavities and had a density of 1.34 g/cm3 at 25 °C. The apparent densities of the solid SAT samples were significant lower than the value of solid SAT reported in literature of 1.45 g/cm3. The density of liquid and supercooled SAT with extra water was also determined at different temperatures.

KW - Sodium acetate trihydrate

KW - Density

KW - Phase change material

KW - X-ray tomography

KW - Thermal energy storage

KW - Cavity

U2 - 10.1016/j.applthermaleng.2017.12.052

DO - 10.1016/j.applthermaleng.2017.12.052

M3 - Journal article

VL - 131

SP - 707

EP - 714

JO - Applied Thermal Engineering

JF - Applied Thermal Engineering

SN - 1359-4311

ER -