The First Natural Ventilation Assessment in Building Design in Djibouti
The First Natural Ventilation Assessment in Building Design in Djibouti作者机构：Research Center at the University of Djibouti (CR UD/GRE) Faculty of Engineers Street Djanaleh B.P. 1904 Djibouti Institute for Earth Sciences Centre d'Etudes et de Recherche de Djibouti (CERD) Airportstreet B.P. 486 Djibouti
出 版 物：《Journal of Life Sciences》 (生命科学（英文版）)
年 卷 期：2016年第10卷第6期
页 面：298-306页
学科分类：081302[工学-建筑设计及其理论] 08[工学] 081404[工学-供热、供燃气、通风及空调工程] 0813[工学-建筑学] 0814[工学-土木工程]
主 题：Computational Fluid Dynamics airflow simulation natural ventilation bioclimatic design weather data energy efficiency.
摘 要：With a sustained period of economic growth, rapidly growing populations and with more diversified economies Africa need sustainable development; hence the greater need for massive investments in energy. Sub-Saharan countries such as Djibouti have the potential and ability to harness their natural ventilation as a passive cooling system for designing new houses. The rapid expansion of the Djibouti city is affecting negatively the environment and the safety and comfort of its inhabitants. Proper atmospheric urban planning and management are key to making cities environmentally friendly and sustainable. Based on energy consumption, climate conditions in Djibouti and numerical analysis using Computational Fluid Dynamics （CFD）, it is apparent that the natural ventilation creates a thermally comfortable indoor environment in buildings during the cool season of the year. Measured wind data from two measurement systems are presented and discussed. Statistical analyses, wind rose, Weibull distribution were carried out to understand the natural ventilation characteristic, which is used for evolving the basic criteria for economic viability of building in the semi-arid climate of Djibouti. The study found that it is possible to benefit from natural ventilation in buildings during the cool season of the year.
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