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Relieving a Tropical Vernacular Habitat Typology as a Source for Contemporary Social Housing designs

Journal of Civil Engineering and Architecture 2018年第7期12卷 493-501页

作者： Marcelo Adolfo Jiménez Leopoldo Eurico Goncalves Bastos PROARQ-FAU/Universidade Federal do Rio de Janeiro Cidade Universitária 21941-901 Rio de Janeiro Brazil Universidad Católica de Alto Paraná Paraguay Mestrado em Arquitetura e Cidade Universidade Vila Velha ES Brazil

This work presents an analysis for the rural vernacular dwelling （Culata Yovai）, sited in the South America Guarani region, basin of Paraguay and Paraná rivers. Outdoor climate has conducted man to build along the time a habitat climatic responsive. Nowadays, studies in progress try to show how this vernacular typology can support new low-income house designs. The intent is to guarantee for new projects the socio-cultural image that people, coming from countryside to live in city outskirts, are accostumed. Also, to provide material improvements and functional adequation for a quality and healthiness. Natural ventilation is the main bioclimatic strategy during summer for thermal comfort, which influences the house characteristics. This is proven by calculation, and simulation with the CFX-ANSYS software. Thus, the analysis performed shows the real possibity to reconcile bioclimatism with the symbolic-cultural value represented by this vernacular architecture form. It is hopped that this study can be considered as a methodological contributition for new sustainable projects （materials, technics and services） of low-incoming houses in this Latin American region.

关键词： bioclimatic design sustainable architecture vernacular habitat social housing natural ventilation.

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The First Natural Ventilation Assessment in Building design in Djibouti

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Journal of Life Sciences 2016年第6期10卷 298-306页

作者： Abdou Idris Omar Abdoulkader Ibrahim Idriss Omar Assowe Dabar Abdourazack Ahmed Kayad Mohamed Said Darar 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

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.

关键词： Computational Fluid Dynamics airflow simulation natural ventilation bioclimatic design weather data energy efficiency.

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