摘要
本文利用实测与模拟相结合的研究方法,分析Ashenfelter体育馆中混合式通风系统对室内风热环境的影响。研究发现:混合式通风有效避免了穿堂风通风路径上的风速衰减。虽然风机是体育馆室内风速的决定因素但风场的均衡度与自然进风口分布的均匀性同样息息相关;体育馆垂直高度上的温度分层现象明显,空间的热压优势显著;混合式通风在体育馆中的降温作用巨大,通风时间的设置对降温效果有重要影响。夜间通风使Ashenfelter体育馆室内过热时数减少56.6%,84.7%的运营时间内不需使用空调系统进行降温。
Field measurement and thermal environment simulation was conducted in Ashenfelter multi-sport gymnasium to evaluate the hybrid ventilation performance in gymnasia. It was found that the air velocities distribution in this gymnasium was stable and evenly distributed. Mechanical equipment was the key impact for the horizontal velocity distribution. However, the evenness of natural inlets was also influential. The vertical temperature stratification in gymnasia was significant. With night ventilation, the over-heated hours in the case study gymnasium decreased by 56.6%, 84.7% of occupied time could be acceptable without running of HVAC system.
出处
《城市建筑》
2016年第22期112-115,共4页
Urbanism and Architecture