Parametric study on vertical void configurations for improving ventilation performance in the mid-rise apartment building

Kumar, Nikhil; Bardhan, Ronita; Kubota, Tetsu; Tominaga, Yoshihide; Shirzadi, Mohammadreza

doi:10.1016/j.buildenv.2022.108969

Cited by 22 publications

(9 citation statements)

References 62 publications

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“…For example, an internal void space used to be a common feature before 2015, but it became unpopular afterwards (Figure 22). Such internal voids were found to enhance natural ventilation and daylight in previous studies [49,50]. Before 2007, and between 2007-2015, more than 40% of public apartments still adopted vertical voids, while after 2015, they diminished to only 25%.…”

Section: Discussionmentioning

confidence: 71%

Section: Discussionmentioning

confidence: 99%

“…Accordingly, the width of corridors tends to reduce from 2.3 m before 2007 to 1.8 m after 2007, on average. This may also affect the thermal performance for corridor and indoor spaces [49,50]. In some tropical countries, apartment design evolved particularly to facilitate natural ventilation.…”

Section: R Peer Reviewmentioning

confidence: 99%

“…Therefore, the majority of 2BR units have their bedrooms on the external corridor side (Figure 21d). Double-loaded high-rise apartments may counter poor natural ventilation, especially on the leeward side of the building [50,52].…”

Section: R Peer Reviewmentioning

confidence: 99%

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Analysis of Typical Layout of Apartment Buildings in Indonesia

Prasetya

Kubota

2023

Buildings

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It is important to determine typical layouts of residential buildings, even in developing countries for standardization towards a zero-carbon society. In Indonesia, housing development in cities continues rising in parallel with high urbanization rates. This study aims to determine the typical layouts of apartments in Indonesia through qualitative and quantitative building typological analyses. A hierarchical cluster analysis was conducted using the building drawing information constructed across Indonesia from 1986 to 2021. A total of 268 public apartments and 268 private apartments from several major cities were included in the datasets, respectively. As a result, six typical layouts for public apartments and thirteen typical layouts for private apartments were determined for both 1BR and 2BR units. Furthermore, four typical unit layouts from public and private apartments associated with building-scale classifications were proposed, respectively, as the base models for the current typical apartments in Indonesia. The results showed that Indonesian public apartments tended to sacrifice semi-open spaces, such as a wide corridor and an internal void space, to increase the size of units and the number of rooms. Meanwhile, most private apartments were constructed with double-loaded corridor systems without internal voids, which potentially cause poor natural ventilation. The proposed typical layouts will be useful for further building simulations as standard testing models, such as to determine the appropriate cooling techniques for low-carbon apartments.

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Section: Discussionmentioning

confidence: 71%

Section: Discussionmentioning

confidence: 99%

Section: R Peer Reviewmentioning

confidence: 99%

Section: R Peer Reviewmentioning

confidence: 99%

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Analysis of Typical Layout of Apartment Buildings in Indonesia

Prasetya

Kubota

2023

Buildings

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“…The present authors in their previous works have proposed an alternative design solution for such doubleloaded apartments for an effective ventilation system [4,5]. As shown in Fig.…”

Section: Building Design Measurement Setup and Case Designmentioning

confidence: 99%

Experimental study on vertical void for improving natural ventilation in midrise double-loaded apartments

et al. 2023

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Affordable apartments in tropical developing countries generally have double-loaded corridors to maximise the total floor areas. Building designs with double-loaded corridors often suffer from poor environmental conditions. Passive design using a vertical void can help improve the natural ventilation in the such building design. This study investigates the effectiveness of vertical voids in enhancing the wind speed in the building. An experimental building with a vertical void, open pilotis, penthouse at rooftop and wind fin on the ground floor to help direct air to the void was constructed in Tegal, Indonesia. Five cases were considered by controlling the window openings, louver openings on the roof and change in fin size at pilotis. Wind speed and direction were recorded at one-second intervals. High wind speed was experienced in the pilotis and void when the wind direction is from the north and the wind speed in the void improved due to the wind fin being placed on the south corridor of the building. The results show the average wind speed in the void is twice as high as compared to the corridors. The building design performed best with high wind speeds in the void and corridores when all windows were kept open.

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