Journal
SUSTAINABLE CITIES AND SOCIETY
Volume 89, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.scs.2022.104365
Keywords
Phase change material; Building energy-saving; Thermal comfort; Thin building envelope; CO 2 emission saving
Ask authors/readers for more resources
Phase change materials (PCMs) have the potential to improve building thermal comfort and save energy in energy-efficient buildings. This study evaluates the passive use of PCM in a thin building envelope in a severely hot location using EnergyPlus software. The results show that PCM effectively reduces temperature fluctuations, levels thermal load, and reduces operative temperature. The integration of PCM also leads to significant energy-saving and environmental benefits, including CO2 emission reduction and electricity cost savings.
Phase change materials (PCMs) have a great potential to enhance building thermal comfort and save energy towards energy-efficient buildings. The current study sheds light on employing PCM passively in a thin building envelope under a severely hot location using EnergyPlus software. The thermal contribution of PCM to indoor thermal comfort was evaluated considering the average temperature fluctuation reduction (ATFR), thermal load levelling reduction (TLLR) and operative temperature reduction (OTR). Besides, the total average heat gain reduction (AHGR) and equivalent CO2 emission and electricity cost saving (ECS) were discussed to quantify the energy-saving. Simulation results demonstrated PCM effectiveness during the hottest summer days. Quantita-tively, the PCM contributed to the ATFR by 5 degrees C-6 degrees C, along with TLLR and OTR by an average of 38%-59% and 6 degrees C, respectively. According to the energy-saving analysis, the daily total AHGR owing to PCM integration ranged between 66.6% and 76.5%, where the roof shared the most. The results also indicated environmental and economic benefits, attaining CO2 emission reduction by 2 kg/day and ECS by up to 250 IQD/day. Conclusively, the PCM can significantly improve building performance when integrated passively with thin envelope elements in severely hot locations.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available