Thermal energy simulation of PCM-based radiant floor cooling systems for naturally ventilated buildings in a hot and humid climate

Kitagawa, Haruka; Asawa, Takashi; Rio, Maria Alejandra Del; Kubota, Tetsu; Trihamdani, Andhang Rakhmat

doi:10.1016/j.buildenv.2023.110351

Cited by 24 publications

(4 citation statements)

References 62 publications

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“…Meanwhile, the high occurrence of the words related to PCM in the night ventilation and thermal energy storage co-occurrence networks indicates that there is a high potential for the use of latent heat thermal storage systems employing PCMs to increase the thermal storage effect through night ventilation in hot and humid climates. For example, Kitagawa et al [119] reported that the thermal storage effect of PCMs increased the thermal comfort period in Indonesia, regardless of outdoor conditions. Therefore, PCMs may compensate for the disadvantages of natural ventilation, such as fluctuating outdoor wind conditions, and maintain thermal comfort even when the windows are closed [118].…”

Section: Potential Combinations Of Passive Cooling Methods For Hot An...mentioning

confidence: 99%

“…The annual average dew point temperature in the hot and humid climate of Jakarta, Indonesia, was 25.0 • C [118]; thus, the active radiant cooling system had a high chance of suffering from condensation. Meanwhile, the floor surface temperature was rarely lower than the dew point temperature when a passive radiant cooling system using PCMs was applied to a naturally ventilated building in the hot and humid climate of Indonesia [119].…”

Section: Thermal Energy Storage Phase Change Material Thermal Behavio...mentioning

confidence: 99%

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A Systematic Review of Passive Cooling Methods in Hot and Humid Climates Using a Text Mining-Based Bibliometric Approach

Nagasue,

Kitagawa,

Asawa

et al. 2024

Sustainability

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The number of scientific papers has dramatically increased in recent years; however, such a huge number of papers often become difficult to review qualitatively because of limited time and cost. A text-mining-based bibliometric analysis method is developed to provide a comprehensive overview of passive cooling methods used in buildings in hot and humid climates. First, a comprehensive overview analysis is conducted to clarify the trends in studies on passive cooling methods between 1970 and 2022, using 39,604 publications. Second, 15 coding rules are constructed to perform a detailed analysis, and possible combinations of passive cooling methods are discussed. The detailed analysis of the co-occurrence network based on the comprehensive overview and 15 coding rules shows that the recent studies on thermal energy storage have mainly focused on phase change material (PCM), which is a latent heat storage material, rather than sensible heat storage materials such as concrete. The analysis of the co-occurrence network indicates that natural ventilation maintains the vital role of passive cooling methods by improving thermal comfort in hot climates. The constructed method and possible combinations of passive cooling methods for hot and humid climates will help engineers find effective combinations in the planning stage.

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Section: Potential Combinations Of Passive Cooling Methods For Hot An...mentioning

confidence: 99%

Section: Thermal Energy Storage Phase Change Material Thermal Behavio...mentioning

confidence: 99%

A Systematic Review of Passive Cooling Methods in Hot and Humid Climates Using a Text Mining-Based Bibliometric Approach

Nagasue,

Kitagawa,

Asawa

et al. 2024

Sustainability

Self Cite

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“…The results showed a reduction in heat transfer by 23%, and the power required to cool the space reduced by 21%. 26 et al [25] investigated the applicability of a phase change material (PCM)-based radiant floor cooling system. The data from the simulation revealed that the proposed PCM-based radiant floor combined with the cooling system and night ventilation accomplished a thermal comfort cycle of up to 68.5% a year.…”

Section: Introductionmentioning

confidence: 99%

Thermal behavior of a PCM-plywood combination as insulation for buildings in a hot summer condition

Al-Akam,

Abduljabbar,

Abdulhamed

et al. 2024

IJHT

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Integrating innovative materials and technologies has become imperative in the quest to design energy-efficient and sustainable buildings. Among these, one of the promising solutions to improve indoor spaces' comfort conditions and energy efficiency is the Phase Change Materials (PCMs). The methodology experimentally explores the impact of combining plywood and paraffin wax as a PCM to improve indoor environments' thermal dynamics under Iraqi conditions. Two wooden boxes are used, with one having its wall stuffed with a PCM. A temperature analysis was made for the internal temperature of each box, walls' surfaces, and PCM temperature for seven days. The impact of the box arrangement on the temperature distribution was also considered. The result showed the temperature inside the modified box is lower than the conventional one by about 3.0 during the peak time from 08:00 hr. to 16:00 hr. The night cooling is slower for the box with the PCM than the conventional one. Having the modified and the non-modified box in arrangement improves the insulation of both of them. Moreover, the findings showed that there is no need for all the rooms to be modified for a building with many rooms. The correct position of the room based on the location of the building in the study area will be enough.

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“…However, cooling techniques towards low-carbon or zero-carbon houses have been studied in this region, such as natural ventilation [22,23], night ventilation [24,25] and radiant cooling [26,27]. Moreover, many studies attempted to utilize the thermal storage effects using PCMs [28][29][30][31][32][33]. To obtain general findings applicable for any other buildings, the standardization of base models is highly required.…”

Section: Introductionmentioning

confidence: 99%

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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Thermal energy simulation of PCM-based radiant floor cooling systems for naturally ventilated buildings in a hot and humid climate

Cited by 24 publications

References 62 publications

A Systematic Review of Passive Cooling Methods in Hot and Humid Climates Using a Text Mining-Based Bibliometric Approach

A Systematic Review of Passive Cooling Methods in Hot and Humid Climates Using a Text Mining-Based Bibliometric Approach

Thermal behavior of a PCM-plywood combination as insulation for buildings in a hot summer condition

Analysis of Typical Layout of Apartment Buildings in Indonesia

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