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Thermal uniformity in an open plan room with an active chilled beam system and conventional air distribution systems

机译：具有主动冷梁系统和常规空气分配系统的开放式房间的热均匀性

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An active chilled beam (ACB) system is known to be not only energy-efficient, but also advantageous to high indoor environment quality. For this reason, its application for indoor climate control is increasing in Europe, North America, and even Asia. The objective of this study is to evaluate the performance of the ACB system in terms of uniformity for the indoor thermal environment. To investigate the thermal uniformity of the ACB system, comparative experiments were conducted in a full-scale test bed, where conventional air distribution systems as well as the ACB system can be selectively operated. The thermal uniformity was evaluated with three performance indices: ADPI to evaluate the air diffusion performance, air velocity to evaluate the local discomfort due to cold draught, and vertical air temperature difference to evaluate temperature stratification. The result shows that the ACB system is successful in providing the acceptable thermal uniformity, even with less air flow rate than other conventional air distribution systems. (C) 2015 Elsevier B.V. All rights reserved.
机译：众所周知，主动冷梁（ACB）系统不仅节能高效，而且对提高室内环境质量也有好处。因此，其在室内气候控制中的应用在欧洲，北美甚至亚洲越来越多。这项研究的目的是根据室内热环境的均匀性来评估ACB系统的性能。为了研究ACB系统的热均匀性，在全尺寸试验台上进行了对比实验，在该试验台上，可以选择性地操作传统的空气分配系统以及ACB系统。用三个性能指标评估热均匀性：ADPI评估空气扩散性能，空气速度评估因冷风引起的局部不适，垂直空气温差评估温度分层。结果表明，ACB系统成功地提供了可接受的热均匀性，甚至比其他传统的空气分配系统的空气流速更小。 （C）2015 Elsevier B.V.保留所有权利。

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