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首页> 外文期刊>International journal of air-conditioning and refrigeration >A Study on the Evaluation of Ventilation Performance According to the Location of the Return Diffusers of an Upward Displacement Ventilation System in a Dome-Shaped Small Concert Hall
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A Study on the Evaluation of Ventilation Performance According to the Location of the Return Diffusers of an Upward Displacement Ventilation System in a Dome-Shaped Small Concert Hall

机译：圆顶形小型音乐厅中根据向上排风系统回风口的位置评估通风性能的研究

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摘要

The modern people are active in various cultural facilities and enjoy the leisure life. The spectators and performers using a small concert hall generally use this space for about 2 h in an enclosed state, and so the space should maintain a comfortable thermal environment and indoor air quality. The ventilation systems that can be applied to small concert hall are generally classified as the mixing ventilation system and the displacement ventilation system, but the upward displacement ventilation system is known to be able to maintain the clean indoor air quality with high energy efficiency. The upward displacement ventilation system installed in a dome-shaped small concert hall is not limited in the height of the vertical wall. Therefore, it is necessary to evaluate the optimal height of the return diffuser by utilizing the ventilation performance and the air diffusion performance index (ADPI). This study was carried out to evaluate the effect of the return diffuser position on the ventilation performance of an upward displacement ventilation system installed in a dome-shaped small concert hall. It was confirmed that as the height at which the return diffuser is installed on the vertical wall increases, the ventilation efficiency increases and the thermal stratification formed in the upper area is significantly reduced.
机译：现代人活跃于各种文化设施中，享受休闲生活。使用小型音乐厅的观众和表演者通常在封闭状态下使用此空间约2小时，因此该空间应保持舒适的热环境和室内空气质量。可以应用于小型音乐厅的通风系统通常被分类为混合通风系统和置换通风系统，但是已知向上置换通风系统能够以高能量效率维持室内清洁空气质量。安装在圆顶形小型音乐厅中的向上排风系统不受垂直壁高度的限制。因此，有必要利用通风性能和空气扩散性能指数（ADPI）来评估回风扩散器的最佳高度。进行这项研究是为了评估返回扩散器位置对安装在圆顶形小型音乐厅中的向上移位通风系统的通风性能的影响。可以确认的是，随着将回流扩散器安装在垂直壁上的高度增加，通风效率增加，并且上部区域中形成的热分层显着减少。

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