An integrated adaptive façade system using a glass block filled with phase change material: cooling energy load and performance enhancement

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F25%3A43926607" target="_blank" >RIV/62156489:43410/25:43926607 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.buildenv.2025.112724" target="_blank" >https://doi.org/10.1016/j.buildenv.2025.112724</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.buildenv.2025.112724" target="_blank" >10.1016/j.buildenv.2025.112724</a>

Result language

angličtina

Original language name

An integrated adaptive façade system using a glass block filled with phase change material: cooling energy load and performance enhancement

Original language description

The building sector demands innovative envelope solutions that can face the current challenges posed by urban transition. Adaptive façade systems appear as a promising solution to fulfil these demands. This study introduces a novel type of double-skin glass block (GB) façade coupled with latent thermal energy storage. Thermo-optical responses of phase change materials (PCMs) integrated into transparent façade elements were investigated. The primary objective was to scrutinise the effects of the PCM latent heat capacity on the heat transfers and temperature profiles within a double-skin façade, focusing on its effectiveness in regulating thermal dynamics during peak cooling demands. The experimental approach employed a series of measurements and analyses conducted in real-world environments. The application of PCM in a double-skin façade can reduce the energy load by 20% during the day and provide 6.6 kWh/m2 of thermal gains at night. In addition, the peak external temperature of a sample with PCM can be reduced by 15 K and its onset can be delayed by 2 h, thus reducing the energy load by up to 1.14 kWh/m2 under high impinging solar radiation (3.18 kWh/m2). The results underscore the effectiveness of PCMs in mitigating thermal peaks, modulating the daytime solar energy transfers (up to 50%), regulating the surface temperatures (up to 22 oC during three melting phase hours), and curbing the heat transfer (up to 30% reduction). These effects contribute to enhanced indoor comfort and decreased cooling loads.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20101 - Civil engineering

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

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

Name of the periodical

Building and Environment

ISSN

0360-1323

e-ISSN

1873-684X

Volume of the periodical

273

Issue of the periodical within the volume

1 April

Country of publishing house

GB - UNITED KINGDOM

Number of pages

18

Pages from-to

112724

UT code for WoS article

001431018800001

EID of the result in the Scopus database

2-s2.0-85218120860