Passive Night Cooling Potential in Office Buildings in Continental and Mediterranean Climate Zone in Croatia
The envelope is one of the most important driving factors in the energy efficiency of buildings. Typical for office and commercial buildings, curtain wall facades allow solar heat gains to be used during the winter but can lead to difficulties in reducing the cooling load during summer. The cooling...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-08-01
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| Series: | Buildings |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-5309/12/8/1207 |
| _version_ | 1827600543656181760 |
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| author | Zoran Veršić Marin Binički Mateja Nosil Mešić |
| author_facet | Zoran Veršić Marin Binički Mateja Nosil Mešić |
| author_sort | Zoran Veršić |
| collection | DOAJ |
| description | The envelope is one of the most important driving factors in the energy efficiency of buildings. Typical for office and commercial buildings, curtain wall facades allow solar heat gains to be used during the winter but can lead to difficulties in reducing the cooling load during summer. The cooling load is dominant in most building types in the temperate maritime climate, while in the temperate continental climate, it is dominant mainly in office and commercial buildings. The goal of this research was to determine the potential of night passive cooling in an office building model in the most populated urban areas in Croatia-Zagreb and Split, which are located in two different climate zones. Suitable to the climate on-site, an appropriate building envelope and various types of passive and mechanical ventilation systems were selected for each location and case. Additional factors included and analysed were climate conditions, heat gains, the heat accumulation of the building, night ventilation through openings, unwanted air infiltration, and cooling loads. Through a detailed description of the model, passive cooling potential calculations, and Computer Fluid Dynamics (CFD) simulations, the results showed a potential of up to 43.5% savings in the cooling energy need for the temperate continental climate and 32.2% in the temperate marine climate. It was found from the analysis that night ventilation is expected to cool down the building enough to delay a need for cooling by several hours and improve fresh air requirements, thus saving power for cooling, and effectively reducing the need for air conditioning. |
| first_indexed | 2024-03-09T04:38:41Z |
| format | Article |
| id | doaj.art-0b99942786f546128073728132f0f175 |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-09T04:38:41Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-0b99942786f546128073728132f0f1752023-12-03T13:24:04ZengMDPI AGBuildings2075-53092022-08-01128120710.3390/buildings12081207Passive Night Cooling Potential in Office Buildings in Continental and Mediterranean Climate Zone in CroatiaZoran Veršić0Marin Binički1Mateja Nosil Mešić2Faculty of Architecture, University of Zagreb, 10000 Zagreb, CroatiaFaculty of Architecture, University of Zagreb, 10000 Zagreb, CroatiaFaculty of Architecture, University of Zagreb, 10000 Zagreb, CroatiaThe envelope is one of the most important driving factors in the energy efficiency of buildings. Typical for office and commercial buildings, curtain wall facades allow solar heat gains to be used during the winter but can lead to difficulties in reducing the cooling load during summer. The cooling load is dominant in most building types in the temperate maritime climate, while in the temperate continental climate, it is dominant mainly in office and commercial buildings. The goal of this research was to determine the potential of night passive cooling in an office building model in the most populated urban areas in Croatia-Zagreb and Split, which are located in two different climate zones. Suitable to the climate on-site, an appropriate building envelope and various types of passive and mechanical ventilation systems were selected for each location and case. Additional factors included and analysed were climate conditions, heat gains, the heat accumulation of the building, night ventilation through openings, unwanted air infiltration, and cooling loads. Through a detailed description of the model, passive cooling potential calculations, and Computer Fluid Dynamics (CFD) simulations, the results showed a potential of up to 43.5% savings in the cooling energy need for the temperate continental climate and 32.2% in the temperate marine climate. It was found from the analysis that night ventilation is expected to cool down the building enough to delay a need for cooling by several hours and improve fresh air requirements, thus saving power for cooling, and effectively reducing the need for air conditioning.https://www.mdpi.com/2075-5309/12/8/1207cross ventilationcooling energy neednight ventilation coolingpassive cooling |
| spellingShingle | Zoran Veršić Marin Binički Mateja Nosil Mešić Passive Night Cooling Potential in Office Buildings in Continental and Mediterranean Climate Zone in Croatia Buildings cross ventilation cooling energy need night ventilation cooling passive cooling |
| title | Passive Night Cooling Potential in Office Buildings in Continental and Mediterranean Climate Zone in Croatia |
| title_full | Passive Night Cooling Potential in Office Buildings in Continental and Mediterranean Climate Zone in Croatia |
| title_fullStr | Passive Night Cooling Potential in Office Buildings in Continental and Mediterranean Climate Zone in Croatia |
| title_full_unstemmed | Passive Night Cooling Potential in Office Buildings in Continental and Mediterranean Climate Zone in Croatia |
| title_short | Passive Night Cooling Potential in Office Buildings in Continental and Mediterranean Climate Zone in Croatia |
| title_sort | passive night cooling potential in office buildings in continental and mediterranean climate zone in croatia |
| topic | cross ventilation cooling energy need night ventilation cooling passive cooling |
| url | https://www.mdpi.com/2075-5309/12/8/1207 |
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