Relationship between Geometric Shapes of Hollow Bricks and their Thermal Efficiency: Case of  a Single-family House in Hot Desert Climates

Air cavities play a crucial role in energy efficiency. Well-designed air cavities serve as an insulating barrier and minimize thermal bridges. The investigation aims to explore several aspects, including the impact of the number of cavities and their geometric shapes on thermal resistance. The calculation guidelines have been established by the standards outlined in the Algerian Regulatory Technical Document DTR.C3-4. The number of test cases for a hollow brick in a vertical position will consist of 12 configurations, all with the same external dimensions of 20 cm × 15 cm × 30 cm. The goal is to prioritize the design of air cavities within the hollow bricks to improve their thermal efficiency. The internal structure and the number of cavities significantly impact thermal resistance. Cavity columns are typically better suited for hollow bricks, as they enhance load distribution and offer superior thermal and compressive resistance, crucial for masonry structures.  The multiple cross walls in hollow bricks might create thermal bridges, which can enhance heat transfer between the sides of the brick.

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