Determining Ventilation Orientated Optimum Window Size for Urban centers of Ethiopia
| dc.contributor.advisor | Tibebu, Assefa (PhD | |
| dc.contributor.author | Deriba, Matias | |
| dc.date.accessioned | 2021-03-17T07:43:51Z | |
| dc.date.accessioned | 2023-11-08T11:26:11Z | |
| dc.date.available | 2021-03-17T07:43:51Z | |
| dc.date.available | 2023-11-08T11:26:11Z | |
| dc.date.issued | 2020-11 | |
| dc.description.abstract | Natural Ventilation is an effective method for passive cooling, increase indoor air quality and minimize energy consumption of a building. Natural ventilation through window openings is an effective solution to bring air into internal spaces and improve indoor environmental condition. In urban centers, where the density is high and local wind is reduced, the geometry of a building and its opening has a massive role in natural ventilation. The current building codes and regulations of Ethiopia miss detailed guidelines for natural ventilation. On the code and regulation for windows are specified only in relation to the floor area regardless of orientation, height, location and climate. Since the country has different climate zone in different regions, the generalized building code and standard will lead to over or under ventilated rooms in both scenarios creates discomfort. The study attempt to determine ventilation-based window size for urban centers of Ethiopia on different façade orientation to increase the effectiveness of natural ventilation. As wind is the main driving force of natural ventilation, regionalizing of Ethiopia according to wind speed and wind direction (secondary-Inter cardinal direction) is presented in order to study the potential of natural ventilation at different regions in the country. The average wind speed is categorized using the Beaufort’s scale of wind speed. The data addresses the urban centers of Ethiopia and the urban centers are selected by density. Both scenarios (single side ventilation and cross-ventilation) are discussed in each zone. Appropriate opening size is determined, using the window orientation with respect to the wind flow direction and also best and worst window orientation is illustrated for each zone. The study verified that, the effectiveness of natural ventilation is associated with wind zone where the urban centers are located. | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/123456789/25554 | |
| dc.language.iso | en | en_US |
| dc.publisher | Addis Ababa university | en_US |
| dc.subject | Natural ventilation, | en_US |
| dc.subject | window size, | en_US |
| dc.subject | window orientation, | en_US |
| dc.subject | wind map | en_US |
| dc.title | Determining Ventilation Orientated Optimum Window Size for Urban centers of Ethiopia | en_US |
| dc.type | Thesis | en_US |