Characterization and thermal performance assessment of earthen adobes and walls additive with different date palm fibers
This study deals on the one hand, with experimental characterization of the thermophysical properties of adobes made from raw earth reinforced with five different plant waste fibers from palm trees in the Drâa-Tafilalet region in southeastern Morocco (Pinnate leaves, Palm fiber mesh, Palm trunk, Pet...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-12-01
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| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509521002084 |
| _version_ | 1818991596961529856 |
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| author | Abdellah Mellaikhafi Mohamed Ouakarrouch Abderrahim Benallel Amine Tilioua Mahmoud Ettakni Abdelhak Babaoui Mohammed Garoum Moulay Ahmed Alaoui Hamdi |
| author_facet | Abdellah Mellaikhafi Mohamed Ouakarrouch Abderrahim Benallel Amine Tilioua Mahmoud Ettakni Abdelhak Babaoui Mohammed Garoum Moulay Ahmed Alaoui Hamdi |
| author_sort | Abdellah Mellaikhafi |
| collection | DOAJ |
| description | This study deals on the one hand, with experimental characterization of the thermophysical properties of adobes made from raw earth reinforced with five different plant waste fibers from palm trees in the Drâa-Tafilalet region in southeastern Morocco (Pinnate leaves, Palm fiber mesh, Palm trunk, Petiole and Palm cluster) and on the other hand, with numerical simulation based on the one-dimensional numerical model to evaluate the effect of the wall constructed in studied adobe on the heat flux and the thermal comfort of the building. The results of the experimental study show that the thermal properties of the samples improve and are different depending on the type of fibers incorporated. Indeed, the thermal insulation property improves at least by about 30% for a mass fraction of 6% of the petiole and palm fiber mesh and at most 48% for 6% of the pinnate leaf fibers. Moreover, the adobes containing the Pinnate leaf fibers offer the best insulation property compared to those containing the other four fibers with thermal conductivities of about 0.312 W/(m.K) and 0.265 W/(m.K) respectively for the two mass fractions of 3% and 6%, as well as its rate thermal damping of diffusion is maximum due to its low value of thermal diffusivity. Numerical simulation results show a maximum decrease of about 46% of the flux through the walls contained the fibers of pinnate leaves. In addition, the heat flux time lag and the heat flux decrement factor improve, ensuring good energy efficiency. |
| first_indexed | 2024-12-20T20:12:47Z |
| format | Article |
| id | doaj.art-d94b67a1649945d886864dd082bfd841 |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-12-20T20:12:47Z |
| publishDate | 2021-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-d94b67a1649945d886864dd082bfd8412022-12-21T19:27:47ZengElsevierCase Studies in Construction Materials2214-50952021-12-0115e00693Characterization and thermal performance assessment of earthen adobes and walls additive with different date palm fibersAbdellah Mellaikhafi0Mohamed Ouakarrouch1Abderrahim Benallel2Amine Tilioua3Mahmoud Ettakni4Abdelhak Babaoui5Mohammed Garoum6Moulay Ahmed Alaoui Hamdi7Research Team in Thermal and Applied Thermodynamics (2.T.A.), Mechanics, Energy Efficiency and Renewable Energies Laboratory (L.M.3.E.R.), Department of Physics, Faculty of Sciences and Techniques Errachidia, Moulay Ismaïl University of Meknès, B.P. 509, Boutalamine, Errachidia, Morocco; Corresponding authors.Materials, Energy and Acoustics TEAM, Higher School of Technology in Salé, Mohammed V University in Rabat, MoroccoResearch Team in Thermal and Applied Thermodynamics (2.T.A.), Mechanics, Energy Efficiency and Renewable Energies Laboratory (L.M.3.E.R.), Department of Physics, Faculty of Sciences and Techniques Errachidia, Moulay Ismaïl University of Meknès, B.P. 509, Boutalamine, Errachidia, MoroccoResearch Team in Thermal and Applied Thermodynamics (2.T.A.), Mechanics, Energy Efficiency and Renewable Energies Laboratory (L.M.3.E.R.), Department of Physics, Faculty of Sciences and Techniques Errachidia, Moulay Ismaïl University of Meknès, B.P. 509, Boutalamine, Errachidia, Morocco; Corresponding authors.Faculty of Sciences, Department of Physics, Moulay Ismail University of Meknès, Meknes, B.P. 11201 Zitoune, 5000 Meknes, MoroccoResearch Team in Thermal and Applied Thermodynamics (2.T.A.), Mechanics, Energy Efficiency and Renewable Energies Laboratory (L.M.3.E.R.), Department of Physics, Faculty of Sciences and Techniques Errachidia, Moulay Ismaïl University of Meknès, B.P. 509, Boutalamine, Errachidia, MoroccoMaterials, Energy and Acoustics TEAM, Higher School of Technology in Salé, Mohammed V University in Rabat, MoroccoFaculty of Sciences, Department of Physics, Moulay Ismail University of Meknès, Meknes, B.P. 11201 Zitoune, 5000 Meknes, MoroccoThis study deals on the one hand, with experimental characterization of the thermophysical properties of adobes made from raw earth reinforced with five different plant waste fibers from palm trees in the Drâa-Tafilalet region in southeastern Morocco (Pinnate leaves, Palm fiber mesh, Palm trunk, Petiole and Palm cluster) and on the other hand, with numerical simulation based on the one-dimensional numerical model to evaluate the effect of the wall constructed in studied adobe on the heat flux and the thermal comfort of the building. The results of the experimental study show that the thermal properties of the samples improve and are different depending on the type of fibers incorporated. Indeed, the thermal insulation property improves at least by about 30% for a mass fraction of 6% of the petiole and palm fiber mesh and at most 48% for 6% of the pinnate leaf fibers. Moreover, the adobes containing the Pinnate leaf fibers offer the best insulation property compared to those containing the other four fibers with thermal conductivities of about 0.312 W/(m.K) and 0.265 W/(m.K) respectively for the two mass fractions of 3% and 6%, as well as its rate thermal damping of diffusion is maximum due to its low value of thermal diffusivity. Numerical simulation results show a maximum decrease of about 46% of the flux through the walls contained the fibers of pinnate leaves. In addition, the heat flux time lag and the heat flux decrement factor improve, ensuring good energy efficiency.http://www.sciencedirect.com/science/article/pii/S2214509521002084Thermal insulationDate palm fibersAdobeThermal propertiesWall heat fluxTime lag |
| spellingShingle | Abdellah Mellaikhafi Mohamed Ouakarrouch Abderrahim Benallel Amine Tilioua Mahmoud Ettakni Abdelhak Babaoui Mohammed Garoum Moulay Ahmed Alaoui Hamdi Characterization and thermal performance assessment of earthen adobes and walls additive with different date palm fibers Case Studies in Construction Materials Thermal insulation Date palm fibers Adobe Thermal properties Wall heat flux Time lag |
| title | Characterization and thermal performance assessment of earthen adobes and walls additive with different date palm fibers |
| title_full | Characterization and thermal performance assessment of earthen adobes and walls additive with different date palm fibers |
| title_fullStr | Characterization and thermal performance assessment of earthen adobes and walls additive with different date palm fibers |
| title_full_unstemmed | Characterization and thermal performance assessment of earthen adobes and walls additive with different date palm fibers |
| title_short | Characterization and thermal performance assessment of earthen adobes and walls additive with different date palm fibers |
| title_sort | characterization and thermal performance assessment of earthen adobes and walls additive with different date palm fibers |
| topic | Thermal insulation Date palm fibers Adobe Thermal properties Wall heat flux Time lag |
| url | http://www.sciencedirect.com/science/article/pii/S2214509521002084 |
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