Socio-Environmental Framework for Integration of Lightweight Tensile Structure Windcatchers in Contemporary Hot-arid Urban Context of Tehran
A design framework for integrating windcatcher functions within the contemporary hot-arid urban Iranian context of Tehran responds to two major changes impacting their current utilization: 1)urban densification resulting in modified access to adequate airflows,and 2)sociocultural shifts towards dependencies on modern mechanical air-conditioning systems.Windcatchers are ubiquitous and integral to buildings throughout the hot-arid regions in the Middle East,and traditionally provide human comfort cooling functions through combinations of thermal mass,stack effect,and evaporation techniques.In historic context,the windcatcher is effective for passively moderating indoor temperatures by means of these natural ventilation cooling strategies.However,this passive technology is rarely used in recent decades due to emerging disadvantages such as maintenance difficulties,lack of urban air filtration methods,decline of cooling efficiency due to modified airflow patterns,habitable space utilization modifications,and the resulting dependencies on mechanical cooling systems.Modular lightweight tensile structures are identified as a potential method for integrating windcatcher functions to reduce energy use and engage regional textile industry.The beneficial aspects of this design strategy emphasize adaptability through inhabitant control for localized modulation to airflow through potential integration in existing multi-story apartment buildings.In addition,the framework suggests advancements for environmental performance of lightweight textiles,such as particulate matter filtration,kinetic energy transformation,and photo-response for passive shading or natural daylighting strategies.The specific objective presented in this study is to define the parameters required for improving natural ventilation cooling and inhabitant adaptability.Existing windcatcher dimensions,microclimate conditions,and urban morphology are identified to inform the Sangelaj neighborhood in Tehran to develop the heat transfer and airflow analysis theory alongside human interface metrics that will inform lightweight tensile structure designs.The comprehensive research project situates intersecting transformations between evolving urban fabric and sociocultural agency with environmental performance and local material industry.
windcatcher adaptable design climate responsive architecture
Homeira MIRHOSSEINI Shane Ida SMITH
University of Arizona,United States of America
国际会议
2017世界可持续建筑环境大会(the World Sustainable Built Environment Conference)
香港
英文
1445-1451
2017-06-05（万方平台首次上网日期，不代表论文的发表时间）