基于浮力效应的建筑顶部开口设计研究

Buoyancy-Operated Natural Ventilation in Architectural Design

风压和热压为建筑自然通风的两种基本形式,建筑自然通风往往是两种形式的综合作用。其中热压通风依托浮力效应原理,借助建筑顶部开口可以改善自然通风。论文从建筑环境对自然通风需求的提升、现代建筑对垂直通风的关注、设计科学与技术策略的丰富、零碳建筑的重要被动策略等方面梳理了其发展变迁的规律,探讨了建筑顶部开口改善自然通风作为设计策略的设计科学方法。

There are two types of natural ventilation combined in buildings, namely wind-based cross ventilation and buoyancy-operated ventilation. Buoyancy-operated ventilation is also known as the stack effect, with the outlet at the top of the buildings. This paper sorts out the changing patterns in the built environment in terms of the increasing demands for natural ventilation, the focus on vertical ventilation in modern architectural design, scientific principles and approaches, and passive design strategies for zero-carbon emission buildings, and discusses the design strategies based on buoyancy-operated ventilation.