TY - JOUR
T1 - Judicious method of integrating phase change materials into a building envelope under Saharan climate
AU - Hamdani, Maamar
AU - Bekkouche, Sidi Mohammed El Amine
AU - Al-Saadi, Saleh
AU - Cherier, Mohamed Kamal
AU - Djeffal, Rachid
AU - Zaiani, Mohamed
N1 - Publisher Copyright:
© 2021 John Wiley & Sons Ltd.
PY - 2021/10/10
Y1 - 2021/10/10
N2 - Phase change materials (PCMs) have been extensively used for thermal storage systems in buildings. To enhance the building's thermal and energy performance, PCMs can be embedded into envelope systems to reduce the cooling and heating demand. A PCM's melting temperature close to the thermal comfort range (20°C-26°C) can potentially be an attractive solution. In this work, the thermal and energy performance of a building in Saharan climate, specifically Ghardaïa in Algeria, was modeled using the TRNSYS-18 simulation package. A newly developed module (Type-285) was compiled for this version to evaluate different PCMs integration approaches in building envelope. Integration techniques have been evaluated based on three performance indicators, namely, monthly and annual energy savings, mean air temperature, and the daily average temperature fluctuation. When considering the conventional PCMs integration within the building envelope, a reduction of 36.4% in annual energy consumption was achieved. The study indicated that when PCMs are carefully integrated based on orientations and seasons, a reduction of 50.71% in annual energy consumption is possible, an additional 14.34% to the conventional PCMs integration. In addition, PCMs provided an enhanced thermal performance and a significant reduction in indoor temperatures that ranged between 2.36°C to 4°C. The study proposes an improved PCMs integration approach which can be possibly implemented if movable PCMs panels are used instead of the conventional static PCMs panels.
AB - Phase change materials (PCMs) have been extensively used for thermal storage systems in buildings. To enhance the building's thermal and energy performance, PCMs can be embedded into envelope systems to reduce the cooling and heating demand. A PCM's melting temperature close to the thermal comfort range (20°C-26°C) can potentially be an attractive solution. In this work, the thermal and energy performance of a building in Saharan climate, specifically Ghardaïa in Algeria, was modeled using the TRNSYS-18 simulation package. A newly developed module (Type-285) was compiled for this version to evaluate different PCMs integration approaches in building envelope. Integration techniques have been evaluated based on three performance indicators, namely, monthly and annual energy savings, mean air temperature, and the daily average temperature fluctuation. When considering the conventional PCMs integration within the building envelope, a reduction of 36.4% in annual energy consumption was achieved. The study indicated that when PCMs are carefully integrated based on orientations and seasons, a reduction of 50.71% in annual energy consumption is possible, an additional 14.34% to the conventional PCMs integration. In addition, PCMs provided an enhanced thermal performance and a significant reduction in indoor temperatures that ranged between 2.36°C to 4°C. The study proposes an improved PCMs integration approach which can be possibly implemented if movable PCMs panels are used instead of the conventional static PCMs panels.
KW - TRNSYS-18
KW - air temperature
KW - energy savings
KW - heating and cooling energy needs
KW - melting PCM temperature
KW - phase change materials
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U2 - 10.1002/er.6951
DO - 10.1002/er.6951
M3 - Article
AN - SCOPUS:85108277678
SN - 0363-907X
VL - 45
SP - 18048
EP - 18065
JO - International Journal of Energy Research
JF - International Journal of Energy Research
IS - 12
ER -