Magnesium oxychloride cement with phase change material: Novel environmentally-friendly composites for heat storage

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F22%3A43924263" target="_blank" >RIV/60461373:22310/22:43924263 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22340/22:43924263 RIV/68407700:21110/22:00360938

Výsledek na webu

<a href="https://reader.elsevier.com/reader/sd/pii/S2238785422016519?token=2B1B394E7B4E60C4BBFD976EC2AA67AEE4538F8027519C74858455DA68938DACCB896937E5537A4BDBAFBFD4C5A80ECD&originRegion=eu-west-1&originCreation=20230104133306" target="_blank" >https://reader.elsevier.com/reader/sd/pii/S2238785422016519?token=2B1B394E7B4E60C4BBFD976EC2AA67AEE4538F8027519C74858455DA68938DACCB896937E5537A4BDBAFBFD4C5A80ECD&originRegion=eu-west-1&originCreation=20230104133306</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jmrt.2022.10.113" target="_blank" >10.1016/j.jmrt.2022.10.113</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Magnesium oxychloride cement with phase change material: Novel environmentally-friendly composites for heat storage

Popis výsledku v původním jazyce

To solve heat energy storage of building enclosure systems, phase change materials (PCMs) were implemented into magnesium oxychloride cement (MOC) to form a MOC-PCM composite. Such composites possess sufficient mechanical strength for specific usage and high heat storage efficiency. The chemical and physical properties of raw materials were investigated as well as fresh composite mixture rheology. On matured samples, structural, mechanical, hygric, and thermal properties were tested. The results suggest that the enrichment of MOC with PCM particles causes an increase in porosity, hence a decrease in the specific density of the composites. With each addition of PCM the reduction of mechanical properties of the composite material occurs, where the maximum reduction in flexural and compressive strength for the sample with 40 wt % of PCM is around 80%. The low strength of the composite is compensated by excellent thermal properties that are required for its intended application. The enthalpies of phase changes increased linearly with the dosage of PCM and can contribute to the passive moderation of temperature fluctuations. The developed composites can find use in building engineering in the form of indoor cladding panels, facing slabs ceiling boards, etc. Which can be beneficially applied for example in the passive cooling of attic rooms and retrofitting of the present building stock. (C) 2022 The Author(s). Published by Elsevier B.V.

Název v anglickém jazyce

Magnesium oxychloride cement with phase change material: Novel environmentally-friendly composites for heat storage

Popis výsledku anglicky

To solve heat energy storage of building enclosure systems, phase change materials (PCMs) were implemented into magnesium oxychloride cement (MOC) to form a MOC-PCM composite. Such composites possess sufficient mechanical strength for specific usage and high heat storage efficiency. The chemical and physical properties of raw materials were investigated as well as fresh composite mixture rheology. On matured samples, structural, mechanical, hygric, and thermal properties were tested. The results suggest that the enrichment of MOC with PCM particles causes an increase in porosity, hence a decrease in the specific density of the composites. With each addition of PCM the reduction of mechanical properties of the composite material occurs, where the maximum reduction in flexural and compressive strength for the sample with 40 wt % of PCM is around 80%. The low strength of the composite is compensated by excellent thermal properties that are required for its intended application. The enthalpies of phase changes increased linearly with the dosage of PCM and can contribute to the passive moderation of temperature fluctuations. The developed composites can find use in building engineering in the form of indoor cladding panels, facing slabs ceiling boards, etc. Which can be beneficially applied for example in the passive cooling of attic rooms and retrofitting of the present building stock. (C) 2022 The Author(s). Published by Elsevier B.V.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY

ISSN

2238-7854

e-ISSN

2214-0697

Svazek periodika

21

Číslo periodika v rámci svazku

listopad-prosinec

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

16

Strana od-do

3327-3342

Kód UT WoS článku

000892135800005

EID výsledku v databázi Scopus

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