Abstract
The aim of this paper is to study and optimize the thermal performance of new lightweight and insulating composite blocks (CBlocks). These CBlocks are made up of a central expanded polystyrene (EPS) layer and two lightweight concrete layers with cavities. The aggregate of the lightweight concrete is pumice. A complete corner wall composed of six composite blocks and a specific corner block is numerically analyzed for different thermal conditions. Numerical methods were used in order to obtain the thermal behavior of these CBlocks. On the one hand, material thermal conductivity, convection and radiation inside the cavities were considered in this problem. On the other hand, the variation of the cavities was also taking into account. Finite Element Method (FEM) and Design of Experiments (DOE) have been used to study and analyze this problem. This numerical study reaches the thermal behavior of these new insulating CBlocks and provides new useful information for researchers and builders.
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Acknowledgements
The authors express deep gratitude to the GICONSIME Research Group at Oviedo University their valuable collaboration. We would also like to thank Swanson Analysis Inc. for the use of ANSYS University Research program and Workbench simulation environment. This work was partial financed with FEDER funds by the Spanish Ministry of Science, Innovation and Universities through the National Project PGC2018-098459-B-I00, as well as regional funds of FICYT through research project GRUPIN-IDI/2018/000221.
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Gencel, O., del Coz Díaz, J.J., Sutcu, M. et al. Thermal Performance Optimization of Lightweight Concrete/EPS Layered Composite Building Blocks. Int J Thermophys 42, 52 (2021). https://doi.org/10.1007/s10765-021-02804-1
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DOI: https://doi.org/10.1007/s10765-021-02804-1