Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Thermal Conductivity Characterization of Industrial Small-Sized Building Materials: Experimental and Simulation Study
https://orcid.org/http://orcid.org/0000-0003-0510-9016
A new experimental procedure for determining the thermal conductivity of small-sized building materials using the boxes method setup is described. The proposed approach does not require additional sensors. Indeed, the measurement is based on the permutation of sensors and then the interpretation of the steady-state heat balance of samples. For the characterization, local earthen blocks from eastern Morocco were developed. The measured thermal conductivity values were compared with those obtained by an accurate transient hot disk method. The comparison shows a good agreement and verifies the performance of the permutation approach. To evaluate the thermal performance of the developed building materials, annual simulations were performed for a typical earthen building located in two different climates in Morocco. In this paper, hot and cold semi-arid climates were chosen to study the impact of the characterized earthen walls on the annual energy consumption of the case study building. The results show that the earthen wall reduces the annual cooling loads by 21.2% and 18.1% for hot and cold semi-arid climates compared to the reference case, respectively. In addition, the studied earthen walls show a reduction in the maximum cooling peak load of up to 20% compared to the conventional walls. However, a slight difference in heating loads for buildings located in cold semi-arid climates was observed. The experimental tests demonstrated the performance of the proposed methodology, which could be used for laboratory testing and for updating building material databases. While the building performance analysis clearly proved that earth walls can play a great role in mitigating the cooling demand and improving the thermal comfort of buildings in summer.
Thermal Conductivity Characterization of Industrial Small-Sized Building Materials: Experimental and Simulation Study
https://orcid.org/http://orcid.org/0000-0003-0510-9016
A new experimental procedure for determining the thermal conductivity of small-sized building materials using the boxes method setup is described. The proposed approach does not require additional sensors. Indeed, the measurement is based on the permutation of sensors and then the interpretation of the steady-state heat balance of samples. For the characterization, local earthen blocks from eastern Morocco were developed. The measured thermal conductivity values were compared with those obtained by an accurate transient hot disk method. The comparison shows a good agreement and verifies the performance of the permutation approach. To evaluate the thermal performance of the developed building materials, annual simulations were performed for a typical earthen building located in two different climates in Morocco. In this paper, hot and cold semi-arid climates were chosen to study the impact of the characterized earthen walls on the annual energy consumption of the case study building. The results show that the earthen wall reduces the annual cooling loads by 21.2% and 18.1% for hot and cold semi-arid climates compared to the reference case, respectively. In addition, the studied earthen walls show a reduction in the maximum cooling peak load of up to 20% compared to the conventional walls. However, a slight difference in heating loads for buildings located in cold semi-arid climates was observed. The experimental tests demonstrated the performance of the proposed methodology, which could be used for laboratory testing and for updating building material databases. While the building performance analysis clearly proved that earth walls can play a great role in mitigating the cooling demand and improving the thermal comfort of buildings in summer.
Thermal Conductivity Characterization of Industrial Small-Sized Building Materials: Experimental and Simulation Study
https://orcid.org/http://orcid.org/0000-0003-0510-9016
A new experimental procedure for determining the thermal conductivity of small-sized building materials using the boxes method setup is described. The proposed approach does not require additional sensors. Indeed, the measurement is based on the permutation of sensors and then the interpretation of the steady-state heat balance of samples. For the characterization, local earthen blocks from eastern Morocco were developed. The measured thermal conductivity values were compared with those obtained by an accurate transient hot disk method. The comparison shows a good agreement and verifies the performance of the permutation approach. To evaluate the thermal performance of the developed building materials, annual simulations were performed for a typical earthen building located in two different climates in Morocco. In this paper, hot and cold semi-arid climates were chosen to study the impact of the characterized earthen walls on the annual energy consumption of the case study building. The results show that the earthen wall reduces the annual cooling loads by 21.2% and 18.1% for hot and cold semi-arid climates compared to the reference case, respectively. In addition, the studied earthen walls show a reduction in the maximum cooling peak load of up to 20% compared to the conventional walls. However, a slight difference in heating loads for buildings located in cold semi-arid climates was observed. The experimental tests demonstrated the performance of the proposed methodology, which could be used for laboratory testing and for updating building material databases. While the building performance analysis clearly proved that earth walls can play a great role in mitigating the cooling demand and improving the thermal comfort of buildings in summer.
Thermal Conductivity Characterization of Industrial Small-Sized Building Materials: Experimental and Simulation Study
Advances in Sustainability sci. & technol.
Howlett, Robert J. (Herausgeber:in) / Littlewood, John R. (Herausgeber:in) / Jain, Lakhmi C. (Herausgeber:in) / Charai, Mouatassim (Autor:in) / Sghiouri, Haitham (Autor:in) / Mezrhab, Ahmed (Autor:in) / Karkri, Mustapha (Autor:in)
Emerging Research in Sustainable Energy and Buildings for a Low-Carbon Future ; Kapitel: 15 ; 249-265
07.02.2021
17 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Improving the materials supply system in small sized building firms
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Improving the materials supply system in small-sized building firms
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Improving the materials supply system in small-sized building firms
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Measurement of thermal conductivity of building materials
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