The thermal performances of cement-based materials with different types of microencapsulated phase change materials
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27690%2F22%3A10250520" target="_blank" >RIV/61989100:27690/22:10250520 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0950061822020487" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0950061822020487</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.conbuildmat.2022.128388" target="_blank" >10.1016/j.conbuildmat.2022.128388</a>
Alternative languages
Result language
angličtina
Original language name
The thermal performances of cement-based materials with different types of microencapsulated phase change materials
Original language description
Phase change materials (PCMs) have been proposed as a means of building energy conservation due to a large amount of heat being absorbed or released during phase-transition. Recently, the application of the encapsulated PCMs (MPCMs) in cement-based materials is drawing more and more attention for the improvement of the thermal performance of building materials. However, the thermal effect of MPCMs with inorganic silica shells on cement-based materials is rarely focused on. In this study, two types of MPCMs with silica shells respectively at nanometer and micron scale were fabricated, and the effect of MPCMs on the thermal performances of cement-based materials was systematically evaluated. Results showed that the prepared MPCMs increased the enthalpy of phase change but decreased the thermal conductivity of cementitious composites. The heat storage and release characteristics of cement pastes were noted to be strongly dependent on the volume fraction of MPCMs, while small size MPCM exhibited better thermal stability and the effect of MPCMs was strongly correlated with the temperature ramp. The prepared MPCMs significantly improved the thermal inertia of cement pastes and can be used as a thermal storage material in buildings to mitigate the indoor temperature fluctuations. To achieve better building energy conservation, MPCM with higher enthalpy is recommended. (C) 2022 Elsevier Ltd
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
20100 - Civil engineering
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Construction and Building Materials
ISSN
0950-0618
e-ISSN
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Volume of the periodical
345
Issue of the periodical within the volume
August 2022
Country of publishing house
US - UNITED STATES
Number of pages
24
Pages from-to
nestrankovano
UT code for WoS article
000877918700001
EID of the result in the Scopus database
2-s2.0-85133893045