Laboratory Test of a Cylindrical Heat Storage Module with Water and Sodium Acetate Trihydrate

Mark Dannemand; Weiqiang Kong; Jakob Berg Johansen; Simon Furbo

doi:10.1016/j.egypro.2016.06.186

Laboratory Test of a Cylindrical Heat Storage Module with Water and Sodium Acetate Trihydrate

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Abstract

Cylindrical heat storage modules with internal heat exchangers have been tested in a laboratory. The modules were filled with water and sodium acetate trihydrate with additives. The testing focused on the heat content of the storage material and the heat exchange capacity rate during charge of the module. For the tests with the phase change materials, the focus was furthermore on the stability of supercooling and cycling stability. Testing the module with sodium acetate trihydrate and 6.4% extra water showed that phase separation increased and the heat released after solidification of supercooled phase change material was reduced over 17 test cycles. The heat released after solidification of the supercooled sodium acetate trihydrate with thickening agent and graphite was stable over the test cycles. Stable supercooling was obtained in 7 out of 17 test cycles with the module with sodium acetate trihydrate with extra water and in 6 out of 35 test cycles for the module with thickening agent.

Original language	English
Journal	Energy Procedia
Volume	91
Pages (from-to)	122-127
ISSN	1876-6102
DOIs	https://doi.org/10.1016/j.egypro.2016.06.186
Publication status	Published - 2016
Event	4th International Conference on Solar Heating and Cooling for Buildings and Industry 2015 - Istanbul, Turkey Duration: 2 Dec 2015 → 4 Dec 2015 Conference number: 4

Conference

Conference	4th International Conference on Solar Heating and Cooling for Buildings and Industry 2015
Number	4
Country/Territory	Turkey
City	Istanbul
Period	02/12/2015 → 04/12/2015

Bibliographical note

© 2016 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Peer-review by the scientific conference committee of SHC 2015 under responsibility of PSE AG

Keywords

Heat storage
Phase change material
Sodium acetate trihydrate
Supercooling

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10.1016/j.egypro.2016.06.186

Dannemand SHC 2015Final published version, 667 KBLicence: CC BY-NC-ND

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@inproceedings{85a26beba00d4dc5830bcfd69b135249,

title = "Laboratory Test of a Cylindrical Heat Storage Module with Water and Sodium Acetate Trihydrate",

abstract = "Cylindrical heat storage modules with internal heat exchangers have been tested in a laboratory. The modules were filled with water and sodium acetate trihydrate with additives. The testing focused on the heat content of the storage material and the heat exchange capacity rate during charge of the module. For the tests with the phase change materials, the focus was furthermore on the stability of supercooling and cycling stability. Testing the module with sodium acetate trihydrate and 6.4\% extra water showed that phase separation increased and the heat released after solidification of supercooled phase change material was reduced over 17 test cycles. The heat released after solidification of the supercooled sodium acetate trihydrate with thickening agent and graphite was stable over the test cycles. Stable supercooling was obtained in 7 out of 17 test cycles with the module with sodium acetate trihydrate with extra water and in 6 out of 35 test cycles for the module with thickening agent. ",

keywords = "Heat storage, Phase change material, Sodium acetate trihydrate, Supercooling",

author = "Mark Dannemand and Weiqiang Kong and Johansen, \{Jakob Berg\} and Simon Furbo",

note = "{\textcopyright} 2016 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer-review by the scientific conference committee of SHC 2015 under responsibility of PSE AG; 4th International Conference on Solar Heating and Cooling for Buildings and Industry 2015, SHC 2015 ; Conference date: 02-12-2015 Through 04-12-2015",

year = "2016",

doi = "10.1016/j.egypro.2016.06.186",

language = "English",

volume = "91",

pages = "122--127",

journal = "Energy Procedia",

issn = "1876-6102",

publisher = "Elsevier",

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TY - GEN

T1 - Laboratory Test of a Cylindrical Heat Storage Module with Water and Sodium Acetate Trihydrate

AU - Dannemand, Mark

AU - Kong, Weiqiang

AU - Johansen, Jakob Berg

AU - Furbo, Simon

N1 - Conference code: 4

PY - 2016

Y1 - 2016

N2 - Cylindrical heat storage modules with internal heat exchangers have been tested in a laboratory. The modules were filled with water and sodium acetate trihydrate with additives. The testing focused on the heat content of the storage material and the heat exchange capacity rate during charge of the module. For the tests with the phase change materials, the focus was furthermore on the stability of supercooling and cycling stability. Testing the module with sodium acetate trihydrate and 6.4% extra water showed that phase separation increased and the heat released after solidification of supercooled phase change material was reduced over 17 test cycles. The heat released after solidification of the supercooled sodium acetate trihydrate with thickening agent and graphite was stable over the test cycles. Stable supercooling was obtained in 7 out of 17 test cycles with the module with sodium acetate trihydrate with extra water and in 6 out of 35 test cycles for the module with thickening agent.

AB - Cylindrical heat storage modules with internal heat exchangers have been tested in a laboratory. The modules were filled with water and sodium acetate trihydrate with additives. The testing focused on the heat content of the storage material and the heat exchange capacity rate during charge of the module. For the tests with the phase change materials, the focus was furthermore on the stability of supercooling and cycling stability. Testing the module with sodium acetate trihydrate and 6.4% extra water showed that phase separation increased and the heat released after solidification of supercooled phase change material was reduced over 17 test cycles. The heat released after solidification of the supercooled sodium acetate trihydrate with thickening agent and graphite was stable over the test cycles. Stable supercooling was obtained in 7 out of 17 test cycles with the module with sodium acetate trihydrate with extra water and in 6 out of 35 test cycles for the module with thickening agent.

KW - Heat storage

KW - Phase change material

KW - Sodium acetate trihydrate

KW - Supercooling

U2 - 10.1016/j.egypro.2016.06.186

DO - 10.1016/j.egypro.2016.06.186

M3 - Conference article

SN - 1876-6102

VL - 91

SP - 122

EP - 127

JO - Energy Procedia

JF - Energy Procedia

T2 - 4th International Conference on Solar Heating and Cooling for Buildings and Industry 2015

Y2 - 2 December 2015 through 4 December 2015

ER -

Laboratory Test of a Cylindrical Heat Storage Module with Water and Sodium Acetate Trihydrate

Abstract

Conference

Bibliographical note

Keywords

Access to Document

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