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Thermal rectification in multilayer phase change material structures for energy storage applications
ID Swoboda, Timm (Author), ID Klinar, Katja (Author), ID Abbasi, Shahzaib (Author), ID Brem, Gerrit (Author), ID Kitanovski, Andrej (Author), ID Muñoz Rojo, Miguel (Author)

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Abstract
Solid-state thermal control devices that present an asymmetric heat flow depend-ing on thermal bias directionality, referred to as thermal diodes, have recentlyreceived increased attention for energy management. The use of materials thatcan change phase is a common approach to design thermal diodes, but typicalsizes, moderate rectification ratios, and narrow thermal tunability limit their po-tential applications. In this work, we propose a multilayer thermal diode made ofa combination of phase change and invariant materials. This device presentsstate-of-the-art thermal rectification ratios up to 136% for a temperature rangebetween 300 K and 500 K. Importantly, this design allows to switch betweendistinct rectification states that can be modulated with temperature, achievingan additional degree of thermal control compared with single-rectification-statedevices. We analyze the relevance of our thermal diodes for retaining heat moreefficiently in thermal storage elements.

Language:English
Keywords:energy engineering, materials science, energy materials, thermal control device, thermal diode, heat storage
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Publication status:Published
Publication version:Version of Record
Year:2021
Number of pages:Str. 1-14
Numbering:Vol. 24, iss. 8, art. 102843
PID:20.500.12556/RUL-128882 This link opens in a new window
UDC:536:620.1/.2
ISSN on article:2589-0042
DOI:10.1016/j.isci.2021.102843 This link opens in a new window
COBISS.SI-ID:72781059 This link opens in a new window
Publication date in RUL:11.08.2021
Views:1607
Downloads:153
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Record is a part of a journal

Title:iScience
Publisher:Cell Press, Elsevier
ISSN:2589-0042
COBISS.SI-ID:24098568 This link opens in a new window

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:09.07.2021

Secondary language

Language:Slovenian
Keywords:gospodarjenje z energijo, znanost o materialih, energijski materiali, toplotni kontrolni element, toplotna dioda, toplotni regulator, shranjevanje toplote

Projects

Funder:Other - Other funder or multiple funders
Funding programme:Decision Strategic Collaboration Grants (University of Twente and University of Münster 2019–2020)
Project number:Ref. CvB UIT-4395

Funder:ARRS - Slovenian Research Agency
Project number:L2-2610
Name:MagBoost: Magnetokalorična podporna mikro-toplotna črpalka za sistem daljinskega ogrevanja

Funder:ARRS - Slovenian Research Agency
Project number:P2-0223
Name:Prenos toplote in snovi

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