Thermal performance evaluation of phase changing materials in double glazing units for office buildings in Egypt
Abstract Nowadays glass curtain walls are used widely in modern buildings as they offer a significant aesthetic appearance and provide the building with natural lighting. However, their poor thermal resistance leads to excessive usage of mechanical systems to achieve thermal comfort which in turn in...
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Nature Portfolio
2025-02-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-025-88206-x |
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| author | Omar Abdel-Rahman El Rouby Mohamed Moemen Afify |
| author_facet | Omar Abdel-Rahman El Rouby Mohamed Moemen Afify |
| author_sort | Omar Abdel-Rahman |
| collection | DOAJ |
| description | Abstract Nowadays glass curtain walls are used widely in modern buildings as they offer a significant aesthetic appearance and provide the building with natural lighting. However, their poor thermal resistance leads to excessive usage of mechanical systems to achieve thermal comfort which in turn increases the energy consumption in buildings. The proper integration of the unique properties of the PCM could effectively enhance the thermal performance of buildings therefore, the main objective of this research is to examine and validate the effect of using phase change material (PCM) on the building thermal performance especially when integrated with double glazing unit (DGU). The research examined comprehensively the effect of using PCM with DGU by undergoing a field experiment and comparing the results with a simulation model using Design Builder (DB) -energy plus simulation tool. After validating the simulation model, DB was used to examine the effect of using PCM double glazing unit with a multi-story office building in three different climatic regions in Egypt covering humid, mild, and hot arid regions. The results showed that using petroleum jelly as a PCM with DGUs will lead to a significant effect in reducing the usage of mechanical systems in cooling the building spaces by 8.91%, 8.62%, and 8.07% in Cairo, Alexandria, and Aswan consecutively from the total yearly cooling electric consumption. |
| format | Article |
| id | doaj-art-d054964f6eeb4c6eb4b7b6ddab8f1ebc |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-d054964f6eeb4c6eb4b7b6ddab8f1ebc2025-02-09T12:33:43ZengNature PortfolioScientific Reports2045-23222025-02-0115111610.1038/s41598-025-88206-xThermal performance evaluation of phase changing materials in double glazing units for office buildings in EgyptOmar Abdel-Rahman0El Rouby1Mohamed Moemen Afify2Architecture Engineering Department, Faculty of Engineering, New Giza UniversityArchitecture Engineering Department, Faculty of Engineering, New Giza UniversityProf. of Architecture & Environmental Design Department, Faculty of Engineering, Cairo UniversityAbstract Nowadays glass curtain walls are used widely in modern buildings as they offer a significant aesthetic appearance and provide the building with natural lighting. However, their poor thermal resistance leads to excessive usage of mechanical systems to achieve thermal comfort which in turn increases the energy consumption in buildings. The proper integration of the unique properties of the PCM could effectively enhance the thermal performance of buildings therefore, the main objective of this research is to examine and validate the effect of using phase change material (PCM) on the building thermal performance especially when integrated with double glazing unit (DGU). The research examined comprehensively the effect of using PCM with DGU by undergoing a field experiment and comparing the results with a simulation model using Design Builder (DB) -energy plus simulation tool. After validating the simulation model, DB was used to examine the effect of using PCM double glazing unit with a multi-story office building in three different climatic regions in Egypt covering humid, mild, and hot arid regions. The results showed that using petroleum jelly as a PCM with DGUs will lead to a significant effect in reducing the usage of mechanical systems in cooling the building spaces by 8.91%, 8.62%, and 8.07% in Cairo, Alexandria, and Aswan consecutively from the total yearly cooling electric consumption.https://doi.org/10.1038/s41598-025-88206-x |
| spellingShingle | Omar Abdel-Rahman El Rouby Mohamed Moemen Afify Thermal performance evaluation of phase changing materials in double glazing units for office buildings in Egypt Scientific Reports |
| title | Thermal performance evaluation of phase changing materials in double glazing units for office buildings in Egypt |
| title_full | Thermal performance evaluation of phase changing materials in double glazing units for office buildings in Egypt |
| title_fullStr | Thermal performance evaluation of phase changing materials in double glazing units for office buildings in Egypt |
| title_full_unstemmed | Thermal performance evaluation of phase changing materials in double glazing units for office buildings in Egypt |
| title_short | Thermal performance evaluation of phase changing materials in double glazing units for office buildings in Egypt |
| title_sort | thermal performance evaluation of phase changing materials in double glazing units for office buildings in egypt |
| url | https://doi.org/10.1038/s41598-025-88206-x |
| work_keys_str_mv | AT omarabdelrahman thermalperformanceevaluationofphasechangingmaterialsindoubleglazingunitsforofficebuildingsinegypt AT elrouby thermalperformanceevaluationofphasechangingmaterialsindoubleglazingunitsforofficebuildingsinegypt AT mohamedmoemenafify thermalperformanceevaluationofphasechangingmaterialsindoubleglazingunitsforofficebuildingsinegypt |