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Natural ventilation by windcatcher (Badgir): A review on the impacts of geometry, microclimate and macroclimate
Energy and Buildings ( IF 6.7 ) Pub Date : 2020-08-17 , DOI: 10.1016/j.enbuild.2020.110396
Fatemeh Jomehzadeh , Hasanen Mohammed Hussen , John Kaiser Calautit , Payam Nejat , M. Salim Ferwati

The significant energy use and increasing requirement for good indoor environment quality in the built environment have led to a renewed interest in natural ventilation strategies such as windcatchers. Windcatcher is a roof-mounted device that supplies fresh airflow into a room and expels polluted air under the action of wind pressure and buoyancy forces. The aim of this review is to investigate factors which affect the natural ventilation performance of windcatcher including internal factors (related to geometry/design of windcatcher), external building features (microclimate) and surrounding environment (macroclimate) plus the impact of integration with other passive systems. From reviewing the literature, it was found that windcatcher with a square cross-section and curved roof demonstrates better ventilation in the room compared to other configurations. Moreover, the overall findings indicated that the integration of windcatcher with other natural ventilation systems such as solar chimney and wing wall has a considerable effect on the ventilation efficiency. In urban environments, buildings are often located quite close to each other, and the effect of surrounding structures on airflow profile cannot be ignored but only a limited number of works considered the impact of urban environment and objects (upstream or downstream) on the ventilation efficiency of windcatcher. Finally, the impact of vegetation, techno-economic cost and energy saving in a building are some significant gaps of current studies.



中文翻译:

捕风者的自然通风(巴德吉尔):几何,小气候和大气候影响的综述

大量的能源消耗以及对建筑环境中良好的室内环境质量的不断增长的需求,引起了人们对自然通风策略(例如捕风器)的重新关注。Windcatcher是一种安装在屋顶的设备,可在风压和浮力的作用下向室内提供新鲜空气流并排出污染的空气。这篇综述的目的是研究影响捕蝇器自然通风性能的因素,包括内部因素(与捕蝇器的几何形状/设计有关),外部建筑特征(微气候)和周围环境(宏观气候)以及与其他被动源集成的影响系统。通过回顾文献,结果发现,与其他配置相比,具有方形横截面和弧形屋顶的挡风玻璃在室内显示出更好的通风。此外,总体发现表明,捕风器与其他自然通风系统(如太阳能烟囱和机翼墙)的集成对通风效率有很大影响。在城市环境中,建筑物之间的位置通常非常接近,周围结构对气流分布的影响不容忽视,但只有少数作品被认为是城市环境和物体(上游或下游)对通风效率的影响捕风者。最后,建筑物中植被,技术经济成本和节能的影响是当前研究的一些重大空白。总体研究结果表明,捕风器与其他自然通风系统(如太阳能烟囱和机翼墙)的集成对通风效率有很大影响。在城市环境中,建筑物之间的位置通常非常接近,周围结构对气流分布的影响不容忽视,但只有少数作品被认为是城市环境和物体(上游或下游)对通风效率的影响捕风者。最后,建筑物中植被,技术经济成本和节能的影响是当前研究的一些重大空白。总体研究结果表明,捕风器与其他自然通风系统(如太阳能烟囱和机翼墙)的集成对通风效率有很大影响。在城市环境中,建筑物之间的位置通常非常接近,周围结构对气流分布的影响不容忽视,但只有少数作品被认为是城市环境和物体(上游或下游)对通风效率的影响捕风者。最后,建筑物中植被,技术经济成本和节能的影响是当前研究的一些重大空白。建筑物之间的位置通常非常接近,周围结构对气流分布的影响不容忽视,但只有少数作品考虑了城市环境和物体(上游或下游)对捕风器通风效率的影响。最后,建筑物中植被,技术经济成本和节能的影响是当前研究的一些重大空白。建筑物之间的位置通常非常接近,周围结构对气流分布的影响不容忽视,但只有少数作品考虑了城市环境和物体(上游或下游)对捕风器通风效率的影响。最后,建筑物中植被,技术经济成本和节能的影响是当前研究的一些重大空白。

更新日期:2020-08-28
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