Numerical Analysis of Building Cooling Using New Passive Downdraught Evaporative Tower Configuration in an Arid Climate
Building energy consumption in hot arid climates is dominated by air conditioning use. Therefore, using passive cooling methods could reduce this demand, improve resource efficiency, and decrease carbon emissions. In this study, an innovative configuration of a passive downdraught evaporative coolin...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-10-01
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| Series: | Mathematics |
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| Online Access: | https://www.mdpi.com/2227-7390/10/19/3616 |
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| author | Mohammad Abdullah Alshenaifi Abdelhakim Mesloub Walid Hassen Mohammed Awad Abuhussain Lioua Kolsi |
| author_facet | Mohammad Abdullah Alshenaifi Abdelhakim Mesloub Walid Hassen Mohammed Awad Abuhussain Lioua Kolsi |
| author_sort | Mohammad Abdullah Alshenaifi |
| collection | DOAJ |
| description | Building energy consumption in hot arid climates is dominated by air conditioning use. Therefore, using passive cooling methods could reduce this demand, improve resource efficiency, and decrease carbon emissions. In this study, an innovative configuration of a passive downdraught evaporative cooling (PDEC) tower is investigated numerically. The governing equations are solved using the finite element method (FEM), and the effects of inlet velocity (0.5 m·s<sup>−1</sup> ≤ u<sub>in</sub> ≤ 3 m·s<sup>−1</sup>) and temperature (35 °C ≤ T<sub>in</sub> ≤ 45 °C) on the fluid structure, temperature field, and relative humidity are studied for three cases related to the position of the air outlet. The flow is considered as turbulent, and the building walls and the tower are assumed to be thermally well insulated. The PDEC tower is equipped with two vertical isotropic saturated porous layers. The results revealed that the inlet velocity and temperature play an essential role in the quality of the indoor temperature. In fact, the temperature can be reduced by about 7 degrees, and the relative humidity can be enhanced by 9% for lower inlet velocities. |
| first_indexed | 2024-03-09T21:27:15Z |
| format | Article |
| id | doaj.art-1dce90915f8f470db1ead4b14b951c7e |
| institution | Directory Open Access Journal |
| issn | 2227-7390 |
| language | English |
| last_indexed | 2024-03-09T21:27:15Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Mathematics |
| spelling | doaj.art-1dce90915f8f470db1ead4b14b951c7e2023-11-23T21:04:32ZengMDPI AGMathematics2227-73902022-10-011019361610.3390/math10193616Numerical Analysis of Building Cooling Using New Passive Downdraught Evaporative Tower Configuration in an Arid ClimateMohammad Abdullah Alshenaifi0Abdelhakim Mesloub1Walid Hassen2Mohammed Awad Abuhussain3Lioua Kolsi4Department of Architectural Engineering, College of Engineering, University of Ha’il, Ha’il 2440, Saudi ArabiaDepartment of Architectural Engineering, College of Engineering, University of Ha’il, Ha’il 2440, Saudi ArabiaLaboratory of Metrology and Energy Systems, University of Monastir, Monastir 5000, TunisiaArchitectural Engineering Department, College of Engineering, Najran University, Najran 66291, Saudi ArabiaDepartment of Mechanical Engineering, College of Engineering, University of Ha’il, Ha’il 2440, Saudi ArabiaBuilding energy consumption in hot arid climates is dominated by air conditioning use. Therefore, using passive cooling methods could reduce this demand, improve resource efficiency, and decrease carbon emissions. In this study, an innovative configuration of a passive downdraught evaporative cooling (PDEC) tower is investigated numerically. The governing equations are solved using the finite element method (FEM), and the effects of inlet velocity (0.5 m·s<sup>−1</sup> ≤ u<sub>in</sub> ≤ 3 m·s<sup>−1</sup>) and temperature (35 °C ≤ T<sub>in</sub> ≤ 45 °C) on the fluid structure, temperature field, and relative humidity are studied for three cases related to the position of the air outlet. The flow is considered as turbulent, and the building walls and the tower are assumed to be thermally well insulated. The PDEC tower is equipped with two vertical isotropic saturated porous layers. The results revealed that the inlet velocity and temperature play an essential role in the quality of the indoor temperature. In fact, the temperature can be reduced by about 7 degrees, and the relative humidity can be enhanced by 9% for lower inlet velocities.https://www.mdpi.com/2227-7390/10/19/3616PDECCFDwind speed: cooling performance: hot climate |
| spellingShingle | Mohammad Abdullah Alshenaifi Abdelhakim Mesloub Walid Hassen Mohammed Awad Abuhussain Lioua Kolsi Numerical Analysis of Building Cooling Using New Passive Downdraught Evaporative Tower Configuration in an Arid Climate Mathematics PDEC CFD wind speed: cooling performance: hot climate |
| title | Numerical Analysis of Building Cooling Using New Passive Downdraught Evaporative Tower Configuration in an Arid Climate |
| title_full | Numerical Analysis of Building Cooling Using New Passive Downdraught Evaporative Tower Configuration in an Arid Climate |
| title_fullStr | Numerical Analysis of Building Cooling Using New Passive Downdraught Evaporative Tower Configuration in an Arid Climate |
| title_full_unstemmed | Numerical Analysis of Building Cooling Using New Passive Downdraught Evaporative Tower Configuration in an Arid Climate |
| title_short | Numerical Analysis of Building Cooling Using New Passive Downdraught Evaporative Tower Configuration in an Arid Climate |
| title_sort | numerical analysis of building cooling using new passive downdraught evaporative tower configuration in an arid climate |
| topic | PDEC CFD wind speed: cooling performance: hot climate |
| url | https://www.mdpi.com/2227-7390/10/19/3616 |
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