Modelling the behaviour of thermal energy harvesting devices with phase-change materials.
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F21%3A00353022" target="_blank" >RIV/68407700:21220/21:00353022 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1038/s41598-021-00079-y" target="_blank" >https://doi.org/10.1038/s41598-021-00079-y</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41598-021-00079-y" target="_blank" >10.1038/s41598-021-00079-y</a>
Alternative languages
Result language
angličtina
Original language name
Modelling the behaviour of thermal energy harvesting devices with phase-change materials.
Original language description
This paper presents a new general theoretical model of thermal energy harvesting devices (TEHDs), which utilise phase-change materials (PCMs) for energy storage. The model's major goal is to identify a set of parameters under which these devices perform optimally, that is, attain the largest thermal buffering capacity and exchange heat with the surrounding phase as quickly as possible. For the first time, an expression for the characteristic harvesting time is developed from the constructal theory viewpoint under the optimal performance assumption, and a dimensionless criterion that characterizes PCM performance is provided. Furthermore, a new non-field solution of the energy equation governing the process of heat transfer within TEHDs with PCMs has also been derived. An expression for the effective thermal effusivity is then obtained. Finally, under a given set of boundary conditions and geometrical constraints, a novel simple technique for the optimal choice of PCMs in TEHDs has been established.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20303 - Thermodynamics
Result continuities
Project
<a href="/en/project/TK02030042" target="_blank" >TK02030042: Latent Thermal Energy Storage in the form of heat or cold within intra-day applications</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Scientific Reports
ISSN
2045-2322
e-ISSN
2045-2322
Volume of the periodical
20522
Issue of the periodical within the volume
11
Country of publishing house
GB - UNITED KINGDOM
Number of pages
32
Pages from-to
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UT code for WoS article
000707660700002
EID of the result in the Scopus database
2-s2.0-85117400031