Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Air Leakage Characteristic of Residential Buildings in the Hot-Humid Climate of Indonesia
In a hot-humid climate, poor air-tightness could either bring warm and humid air from outside entering the air-conditioned space or make the cool air easily escape the air-conditioned space, in which both air leakage conditions would affect the energy efficiency of AC. Nevertheless, the study of air leakage characteristics of buildings in Indonesia is still lacking, especially air leakage through the fenestration. Therefore, this study aims to reveal the air leakage characteristic through a fenestration in residential buildings, focusing on the door and window. A Computational Fluid Dynamic (CFD) simulation was employed to observe the occurrence of air leakage. Moreover, the stack and wind pressure-driven air leakage were considered. The results show that the outdoor air temperature and wind conditions greatly affect the degree, direction, and location of air leakage. Higher temperature differences between two adjacent rooms would increase the air infiltration rate. For instance, 5 °C differences between an air-conditioned room and its adjacent room would increase the air infiltration rate up to 95%. Air infiltration mainly occurs in the upper part of the opening, while air exfiltration occurs in the lower part. Moreover, a larger leakage area also increases the air leakage occurrence.
Air Leakage Characteristic of Residential Buildings in the Hot-Humid Climate of Indonesia
In a hot-humid climate, poor air-tightness could either bring warm and humid air from outside entering the air-conditioned space or make the cool air easily escape the air-conditioned space, in which both air leakage conditions would affect the energy efficiency of AC. Nevertheless, the study of air leakage characteristics of buildings in Indonesia is still lacking, especially air leakage through the fenestration. Therefore, this study aims to reveal the air leakage characteristic through a fenestration in residential buildings, focusing on the door and window. A Computational Fluid Dynamic (CFD) simulation was employed to observe the occurrence of air leakage. Moreover, the stack and wind pressure-driven air leakage were considered. The results show that the outdoor air temperature and wind conditions greatly affect the degree, direction, and location of air leakage. Higher temperature differences between two adjacent rooms would increase the air infiltration rate. For instance, 5 °C differences between an air-conditioned room and its adjacent room would increase the air infiltration rate up to 95%. Air infiltration mainly occurs in the upper part of the opening, while air exfiltration occurs in the lower part. Moreover, a larger leakage area also increases the air leakage occurrence.
Air Leakage Characteristic of Residential Buildings in the Hot-Humid Climate of Indonesia
Lecture Notes in Civil Engineering
Swasto, Deva Fosterharoldas (Herausgeber:in) / Rahmi, Dwita Hadi (Herausgeber:in) / Rahmawati, Yani (Herausgeber:in) / Hidayati, Isti (Herausgeber:in) / Al-Faraby, Jimly (Herausgeber:in) / Widita, Alyas (Herausgeber:in) / Nurjannah, Amalia (Autor:in) / Trihamdani, Andhang Rakhmat (Autor:in)
International Conference on Indonesian Architecture and Planning ; 2022 ; Yogyakarta, Indonesia
27.06.2023
16 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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