CFD Simulation Supported Development of Wind Catcher Shape Topology in a Passive Air Conduction System (PACS)
New studies and reports are published on a daily basis about the dangers of climate change and its main causes: humanity’s constantly growing population, the built environment and resource consumption. The built environment is responsible for approx. 40% of the total energy consumption, and a signif...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-10-01
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| Series: | Buildings |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-5309/12/10/1583 |
| _version_ | 1827651270012305408 |
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| author | Ádám László Katona István Ervin Háber István Kistelegdi |
| author_facet | Ádám László Katona István Ervin Háber István Kistelegdi |
| author_sort | Ádám László Katona |
| collection | DOAJ |
| description | New studies and reports are published on a daily basis about the dangers of climate change and its main causes: humanity’s constantly growing population, the built environment and resource consumption. The built environment is responsible for approx. 40% of the total energy consumption, and a significant part comes from maintaining an appropriate indoor comfort environment by heating ventilation and air conditioning. Though contemporary studies have achieved a wide knowledge about natural ventilation and passive air conducting systems (PACS) and their applicability, further investigations are necessary to deepen the aerodynamic topology of air conducting building structures’ shape properties. Hence, in our current research we conducted a series of tests applying different wind catcher geometries. The methodology of this work is based on the authors’ previous work, where passive air conduction systems were compared with different airflow directions via computational fluid dynamic simulations (CFD). After finding the better performing PACS (a downdraught system), this research evaluates whether further improvements in ventilation efficiency are possible due to the aerodynamic shaping of the roof integrated inlet structures. Four different wind catcher geometries were examined to determine the most advantageous dimensional settings in the natural ventilation system’s given boundaries. After multiple series of basic and developed calculation runs, diverse shape designs of the passive air conduction inlet (PACI) were examined, including wind deflector geometries. The initial reference wind catcher’s air change rate was increased by approx. 11%. The results deliver the potential measure of improvements achievable in the aerodynamic shape design of structures under identic conditions of the same building domain. As a consequence, more sophisticated natural ventilation structural solutions will be possible in more operation cost- and performance-effective ways. |
| first_indexed | 2024-03-09T20:34:25Z |
| format | Article |
| id | doaj.art-cc8e23ef0ff84b54b38ac0cd58613cc0 |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-09T20:34:25Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-cc8e23ef0ff84b54b38ac0cd58613cc02023-11-23T23:16:40ZengMDPI AGBuildings2075-53092022-10-011210158310.3390/buildings12101583CFD Simulation Supported Development of Wind Catcher Shape Topology in a Passive Air Conduction System (PACS)Ádám László Katona0István Ervin Háber1István Kistelegdi2Energia Design Building Technology Research Group, Szentágothai Research Centre, H-7624 Pécs, HungaryEnergia Design Building Technology Research Group, Szentágothai Research Centre, H-7624 Pécs, HungaryEnergia Design Building Technology Research Group, Szentágothai Research Centre, H-7624 Pécs, HungaryNew studies and reports are published on a daily basis about the dangers of climate change and its main causes: humanity’s constantly growing population, the built environment and resource consumption. The built environment is responsible for approx. 40% of the total energy consumption, and a significant part comes from maintaining an appropriate indoor comfort environment by heating ventilation and air conditioning. Though contemporary studies have achieved a wide knowledge about natural ventilation and passive air conducting systems (PACS) and their applicability, further investigations are necessary to deepen the aerodynamic topology of air conducting building structures’ shape properties. Hence, in our current research we conducted a series of tests applying different wind catcher geometries. The methodology of this work is based on the authors’ previous work, where passive air conduction systems were compared with different airflow directions via computational fluid dynamic simulations (CFD). After finding the better performing PACS (a downdraught system), this research evaluates whether further improvements in ventilation efficiency are possible due to the aerodynamic shaping of the roof integrated inlet structures. Four different wind catcher geometries were examined to determine the most advantageous dimensional settings in the natural ventilation system’s given boundaries. After multiple series of basic and developed calculation runs, diverse shape designs of the passive air conduction inlet (PACI) were examined, including wind deflector geometries. The initial reference wind catcher’s air change rate was increased by approx. 11%. The results deliver the potential measure of improvements achievable in the aerodynamic shape design of structures under identic conditions of the same building domain. As a consequence, more sophisticated natural ventilation structural solutions will be possible in more operation cost- and performance-effective ways.https://www.mdpi.com/2075-5309/12/10/1583natural ventilationdowndraught air conductionpassive air conduction inletwind catcherCFDstructural shape design |
| spellingShingle | Ádám László Katona István Ervin Háber István Kistelegdi CFD Simulation Supported Development of Wind Catcher Shape Topology in a Passive Air Conduction System (PACS) Buildings natural ventilation downdraught air conduction passive air conduction inlet wind catcher CFD structural shape design |
| title | CFD Simulation Supported Development of Wind Catcher Shape Topology in a Passive Air Conduction System (PACS) |
| title_full | CFD Simulation Supported Development of Wind Catcher Shape Topology in a Passive Air Conduction System (PACS) |
| title_fullStr | CFD Simulation Supported Development of Wind Catcher Shape Topology in a Passive Air Conduction System (PACS) |
| title_full_unstemmed | CFD Simulation Supported Development of Wind Catcher Shape Topology in a Passive Air Conduction System (PACS) |
| title_short | CFD Simulation Supported Development of Wind Catcher Shape Topology in a Passive Air Conduction System (PACS) |
| title_sort | cfd simulation supported development of wind catcher shape topology in a passive air conduction system pacs |
| topic | natural ventilation downdraught air conduction passive air conduction inlet wind catcher CFD structural shape design |
| url | https://www.mdpi.com/2075-5309/12/10/1583 |
| work_keys_str_mv | AT adamlaszlokatona cfdsimulationsupporteddevelopmentofwindcatchershapetopologyinapassiveairconductionsystempacs AT istvanervinhaber cfdsimulationsupporteddevelopmentofwindcatchershapetopologyinapassiveairconductionsystempacs AT istvankistelegdi cfdsimulationsupporteddevelopmentofwindcatchershapetopologyinapassiveairconductionsystempacs |