Potential use of recycled materials on rooftops to improve thermal comfort in sustainable building construction projects
The study has two objectives. First, it experimentally measures the indoor and outdoor temperatures of a building in Peshawar and conducts validation with CFD modeling. Second, it simulates the building with the addition of locally available, natural, and recycled insulator materials on the rooftop...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-11-01
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| Series: | Frontiers in Built Environment |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fbuil.2022.1014473/full |
| _version_ | 1798018007022174208 |
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| author | Mushtaq Ahmad Miram Ali Jamshid Ali Turi Aneel Manan Rayeh Nasr Salam Al-Dala’ien khalid Rashid |
| author_facet | Mushtaq Ahmad Miram Ali Jamshid Ali Turi Aneel Manan Rayeh Nasr Salam Al-Dala’ien khalid Rashid |
| author_sort | Mushtaq Ahmad |
| collection | DOAJ |
| description | The study has two objectives. First, it experimentally measures the indoor and outdoor temperatures of a building in Peshawar and conducts validation with CFD modeling. Second, it simulates the building with the addition of locally available, natural, and recycled insulator materials on the rooftop to keep the indoor environment within a comfortable temperature range, especially in the winter and summer seasons. To achieve these objectives, experimental temperature data for January and June were recorded and validated, followed by a simulation, using ANSYS-Fluent 16 CFD, of the residential building with the application of waste thermal insulators such as straw bale, sheep wool, and recycled glass materials on the rooftop to reduce the indoor temperature. Experimental temperature measurement showed that the lowest recorded indoor temperature was 15°C on 2 January 2022 and that the highest recorded indoor temperature was 41°C on 11 June. The predicted and validated temperature results were similar, with a slight difference of less than 15%. Recycled glass positively and significantly reduced the indoor temperature in summer by 10.2% and thermal amplitude by 48.3%, with a time lag increase of 100% and an increase in the period of comfort hours of 380%. In winter, the daily average temperature increased by 7.4%, thermal amplitude was reduced by 59.3%, and the time lag increased by 100% in comparison with the baseline case results. The study concludes that recycled glass distribution gives the best improvement compared to straw bale and sheep wool. |
| first_indexed | 2024-04-11T16:16:46Z |
| format | Article |
| id | doaj.art-ca126f3febb94c209679e1f6a7e4f88f |
| institution | Directory Open Access Journal |
| issn | 2297-3362 |
| language | English |
| last_indexed | 2024-04-11T16:16:46Z |
| publishDate | 2022-11-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Built Environment |
| spelling | doaj.art-ca126f3febb94c209679e1f6a7e4f88f2022-12-22T04:14:28ZengFrontiers Media S.A.Frontiers in Built Environment2297-33622022-11-01810.3389/fbuil.2022.10144731014473Potential use of recycled materials on rooftops to improve thermal comfort in sustainable building construction projectsMushtaq Ahmad0Miram Ali1Jamshid Ali Turi2Aneel Manan3Rayeh Nasr Salam Al-Dala’ien4khalid Rashid5Department of Civil Engineering, Tenaga Nasional University (UNITEN), Kajang, MalaysiaDepartment of Architecture, Faculty of Engineering and Information Technology, Onaizah Colleges, Al Qasim, Saudi ArabiaBahria Business School, Bahria University, Islamabad, PakistanSchool of International Education, Department of Civil Engineering, Zhengzhou University, Zhengzhou, ChinaDepartment of Civil Engineering, Al-Balqa Applied University Jordan, Salt, JordanIqra National University, Peshawar, PakistanThe study has two objectives. First, it experimentally measures the indoor and outdoor temperatures of a building in Peshawar and conducts validation with CFD modeling. Second, it simulates the building with the addition of locally available, natural, and recycled insulator materials on the rooftop to keep the indoor environment within a comfortable temperature range, especially in the winter and summer seasons. To achieve these objectives, experimental temperature data for January and June were recorded and validated, followed by a simulation, using ANSYS-Fluent 16 CFD, of the residential building with the application of waste thermal insulators such as straw bale, sheep wool, and recycled glass materials on the rooftop to reduce the indoor temperature. Experimental temperature measurement showed that the lowest recorded indoor temperature was 15°C on 2 January 2022 and that the highest recorded indoor temperature was 41°C on 11 June. The predicted and validated temperature results were similar, with a slight difference of less than 15%. Recycled glass positively and significantly reduced the indoor temperature in summer by 10.2% and thermal amplitude by 48.3%, with a time lag increase of 100% and an increase in the period of comfort hours of 380%. In winter, the daily average temperature increased by 7.4%, thermal amplitude was reduced by 59.3%, and the time lag increased by 100% in comparison with the baseline case results. The study concludes that recycled glass distribution gives the best improvement compared to straw bale and sheep wool.https://www.frontiersin.org/articles/10.3389/fbuil.2022.1014473/fullthermal insulationcomfortable environmentrecycled glassstraw balesheep woolindoor |
| spellingShingle | Mushtaq Ahmad Miram Ali Jamshid Ali Turi Aneel Manan Rayeh Nasr Salam Al-Dala’ien khalid Rashid Potential use of recycled materials on rooftops to improve thermal comfort in sustainable building construction projects Frontiers in Built Environment thermal insulation comfortable environment recycled glass straw bale sheep wool indoor |
| title | Potential use of recycled materials on rooftops to improve thermal comfort in sustainable building construction projects |
| title_full | Potential use of recycled materials on rooftops to improve thermal comfort in sustainable building construction projects |
| title_fullStr | Potential use of recycled materials on rooftops to improve thermal comfort in sustainable building construction projects |
| title_full_unstemmed | Potential use of recycled materials on rooftops to improve thermal comfort in sustainable building construction projects |
| title_short | Potential use of recycled materials on rooftops to improve thermal comfort in sustainable building construction projects |
| title_sort | potential use of recycled materials on rooftops to improve thermal comfort in sustainable building construction projects |
| topic | thermal insulation comfortable environment recycled glass straw bale sheep wool indoor |
| url | https://www.frontiersin.org/articles/10.3389/fbuil.2022.1014473/full |
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