A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Improvement of the thermal performance of hollow clay bricks for structural masonry walls
https://orcid.org/0000-0002-7257-0710
https://orcid.org/0009-0007-0941-9050
Abstract Although structural masonry walls are widely used in construction, achieving lower U-value is crucial to minimize energy losses and greenhouse gas emissions. The effect on the U-value of hollow clay masonry walls is evaluated by modifying the clay and mortar thermal conductivities, as well as the brick grid and thickness. Heat transfer through bricks and walls was modeled using a 3D-finite element method while model validation was based on experimental tests. Smaller rectangular cavities reduce the U-value to 0.761 W/m2K; increasing the brick thickness reduces the U-value to 0.563 W/m2K. Moreover, reducing the clay thermal conductivity showed negligible reductions in the wall U-value.
Highlights Surface coefficient approach showed a better approach for estimation of ETCB. LWA and MK reduced thermal conductivity of clay retaining structural performance. Rectangular geometry and smaller cavities lowered ETCB on bricks and wall systems. Increased wall width showed lower ETCB values. Clay thermal conductivity change is less significant in wall systems.
Improvement of the thermal performance of hollow clay bricks for structural masonry walls
https://orcid.org/0000-0002-7257-0710
https://orcid.org/0009-0007-0941-9050
Abstract Although structural masonry walls are widely used in construction, achieving lower U-value is crucial to minimize energy losses and greenhouse gas emissions. The effect on the U-value of hollow clay masonry walls is evaluated by modifying the clay and mortar thermal conductivities, as well as the brick grid and thickness. Heat transfer through bricks and walls was modeled using a 3D-finite element method while model validation was based on experimental tests. Smaller rectangular cavities reduce the U-value to 0.761 W/m2K; increasing the brick thickness reduces the U-value to 0.563 W/m2K. Moreover, reducing the clay thermal conductivity showed negligible reductions in the wall U-value.
Highlights Surface coefficient approach showed a better approach for estimation of ETCB. LWA and MK reduced thermal conductivity of clay retaining structural performance. Rectangular geometry and smaller cavities lowered ETCB on bricks and wall systems. Increased wall width showed lower ETCB values. Clay thermal conductivity change is less significant in wall systems.
Improvement of the thermal performance of hollow clay bricks for structural masonry walls
https://orcid.org/0000-0002-7257-0710
https://orcid.org/0009-0007-0941-9050
Abstract Although structural masonry walls are widely used in construction, achieving lower U-value is crucial to minimize energy losses and greenhouse gas emissions. The effect on the U-value of hollow clay masonry walls is evaluated by modifying the clay and mortar thermal conductivities, as well as the brick grid and thickness. Heat transfer through bricks and walls was modeled using a 3D-finite element method while model validation was based on experimental tests. Smaller rectangular cavities reduce the U-value to 0.761 W/m2K; increasing the brick thickness reduces the U-value to 0.563 W/m2K. Moreover, reducing the clay thermal conductivity showed negligible reductions in the wall U-value.
Highlights Surface coefficient approach showed a better approach for estimation of ETCB. LWA and MK reduced thermal conductivity of clay retaining structural performance. Rectangular geometry and smaller cavities lowered ETCB on bricks and wall systems. Increased wall width showed lower ETCB values. Clay thermal conductivity change is less significant in wall systems.
Improvement of the thermal performance of hollow clay bricks for structural masonry walls
Vera, Sergio (author) / Figueroa, Camilo (author) / Chubretovic, Soledad (author) / Remesar, Jose C. (author) / Vargas, Felipe (author)
2024-01-14
Article (Journal)
Electronic Resource
English
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