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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Building and Environment

ISSN

0360-1323

e-ISSN

1873-684X

Svazek periodika

273

Číslo periodika v rámci svazku

1 April

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

18

Strana od-do

112724

Kód UT WoS článku

001431018800001

EID výsledku v databázi Scopus

2-s2.0-85218120860