The geothermal potential of underground buildings in hot climates: Case of Southern Algeria

Underground buildings are one of the most effective old and modern techniques, at the same time to meet the trade-off between thermal comfort and low energy consumption in hot and arid climates, through the soil thermal properties, which can be applied as a heat capacitor for moderating indoor tempe...

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Main Authors: Belkhir Hebbal, Yacine Marif, Maamar Hamdani, Mohamed Mustapha Belhadj, Hamza Bouguettaia, Djamel Bechki
Format: Article
Language:English
Published: Elsevier 2021-12-01
Series:Case Studies in Thermal Engineering
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2214157X21005852
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spelling doaj-5a11f581c05f4f47a08b6ea27ec527972021-09-15T04:21:51ZengElsevierCase Studies in Thermal Engineering2214-157X2021-12-0128101422The geothermal potential of underground buildings in hot climates: Case of Southern AlgeriaBelkhir Hebbal0Yacine Marif1Maamar Hamdani2Mohamed Mustapha Belhadj3Hamza Bouguettaia4Djamel Bechki5University of Kasdi Merbah Ouargla, LENREZA Laboratory, Ghardaia Road, BP.511, 30000, Ouargla, Algeria; Corresponding author.University of Kasdi Merbah Ouargla, LENREZA Laboratory, Ghardaia Road, BP.511, 30000, Ouargla, AlgeriaUnité de Recherche Appliquée en Energies Renouvelables, URAER, Centre de Développement des Energies Renouvelables, CDER, 47133, Ghardaïa, AlgeriaUniversity of Kasdi Merbah Ouargla, LENREZA Laboratory, Ghardaia Road, BP.511, 30000, Ouargla, AlgeriaUniversity of Kasdi Merbah Ouargla, LENREZA Laboratory, Ghardaia Road, BP.511, 30000, Ouargla, AlgeriaUniversity of Kasdi Merbah Ouargla, LENREZA Laboratory, Ghardaia Road, BP.511, 30000, Ouargla, AlgeriaUnderground buildings are one of the most effective old and modern techniques, at the same time to meet the trade-off between thermal comfort and low energy consumption in hot and arid climates, through the soil thermal properties, which can be applied as a heat capacitor for moderating indoor temperatures. This research aims to improve the thermal comfort and energy efficiency of underground buildings compared to aboveground buildings in hot and arid climates based on yearly energy consumption. The experimental measurements of soil temperatures at different depths were compared to the numerical results of the Kasuda equation. Furthermore, TRNSYS software simulation findings were validated by monitoring the temperature of an underground room in Ouargla, Algeria, using digital temperature sensors. The findings revealed that an underground structure with a depth of 2.34 m decreases cooling energy demand considerably during the summer season. Furthermore, with and without state support, the investment return time was predicted from 6.5 to 3.25 years, respectively.http://www.sciencedirect.com/science/article/pii/S2214157X21005852Ouargla cityUnderground buildingsThermal comfortExperimental studySimulation
collection DOAJ
language English
format Article
sources DOAJ
author Belkhir Hebbal
Yacine Marif
Maamar Hamdani
Mohamed Mustapha Belhadj
Hamza Bouguettaia
Djamel Bechki
spellingShingle Belkhir Hebbal
Yacine Marif
Maamar Hamdani
Mohamed Mustapha Belhadj
Hamza Bouguettaia
Djamel Bechki
The geothermal potential of underground buildings in hot climates: Case of Southern Algeria
Case Studies in Thermal Engineering
Ouargla city
Underground buildings
Thermal comfort
Experimental study
Simulation
author_facet Belkhir Hebbal
Yacine Marif
Maamar Hamdani
Mohamed Mustapha Belhadj
Hamza Bouguettaia
Djamel Bechki
author_sort Belkhir Hebbal
title The geothermal potential of underground buildings in hot climates: Case of Southern Algeria
title_short The geothermal potential of underground buildings in hot climates: Case of Southern Algeria
title_full The geothermal potential of underground buildings in hot climates: Case of Southern Algeria
title_fullStr The geothermal potential of underground buildings in hot climates: Case of Southern Algeria
title_full_unstemmed The geothermal potential of underground buildings in hot climates: Case of Southern Algeria
title_sort geothermal potential of underground buildings in hot climates: case of southern algeria
publisher Elsevier
series Case Studies in Thermal Engineering
issn 2214-157X
publishDate 2021-12-01
description Underground buildings are one of the most effective old and modern techniques, at the same time to meet the trade-off between thermal comfort and low energy consumption in hot and arid climates, through the soil thermal properties, which can be applied as a heat capacitor for moderating indoor temperatures. This research aims to improve the thermal comfort and energy efficiency of underground buildings compared to aboveground buildings in hot and arid climates based on yearly energy consumption. The experimental measurements of soil temperatures at different depths were compared to the numerical results of the Kasuda equation. Furthermore, TRNSYS software simulation findings were validated by monitoring the temperature of an underground room in Ouargla, Algeria, using digital temperature sensors. The findings revealed that an underground structure with a depth of 2.34 m decreases cooling energy demand considerably during the summer season. Furthermore, with and without state support, the investment return time was predicted from 6.5 to 3.25 years, respectively.
topic Ouargla city
Underground buildings
Thermal comfort
Experimental study
Simulation
url http://www.sciencedirect.com/science/article/pii/S2214157X21005852
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