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Diffuse Ceiling Ventilation - A Review

机译：漫射天花板通风-评论

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摘要

As a novel air distribution system, diffuse ceiling ventilation combines the suspended acoustic ceiling with ventilation supply. Due to the low-impulse supply from the large ceiling area, the system does not generate draught when supplying cold air. However, heat sources play an important role on thermal comfort in the occupant zone. Another characteristic of this system is its lower pressure drop compared with conventional ventilation systems, which reduces the noise problem and, at the same time, the energy consumption of the fan can be reduced. This review is based on a number of experimental and numerical studies on diffuse ceiling ventilation. Performance in terms of thermal comfort, air quality, pressure drop as well as radiant cooling potential are examined. Finally, a discussion on the proper design of the suspended ceiling and plenum to achieve a uniform air distribution and surface temperature as well as optimizing the radiant cooling potential by combining with thermal mass is conducted and gives a direction for further investigation.
机译：作为一种新颖的空气分配系统，扩散式天花板通风将悬浮的声学天花板与通风供应结合在一起。由于来自较大天花板区域的脉冲动力较低，因此在供应冷空气时系统不会产生气流。但是，热源在乘员区的热舒适性中起着重要作用。该系统的另一个特点是，与传统的通风系统相比，其压降更低，从而减少了噪音问题，同时可以降低风扇的能耗。这篇评论是基于大量关于弥散天花板通风的实验和数值研究得出的。检查了在热舒适性，空气质量，压降以及辐射冷却潜能方面的性能。最后，对吊顶和气室的合理设计进行讨论，以实现均匀的空气分布和表面温度，并结合热质量优化辐射冷却潜能，并为进一步研究提供了方向。

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