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Technical feasibility of a stratum-ventilated room for multiple rows of occupants

机译:多排乘员层通风房间的技术可行性

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This study aimed to explore the technical feasibility of stratum ventilation for a room with occupants in multiple rows. Theoretical analysis, human subject tests and computational fluid dynamics (CFD) simulations were conducted. All the results showed that stratum ventilation can be used for a room with multiple rows of occupants. Human subject tests indicated that the acceptable thermal comfort with low draft was achieved for the two rows of occupants. The CFD simulations showed that the acceptable thermal comfort level has been reached, measured by EDTS (effective draft temperature for stratum ventilation), PMV (predicted mean vote), PPD (predicted percentage dissatisfied) and PD (percentage dissatisfied due to draft), and air of young age was also achieved for the three rows of occupants. This is because the cool fresh supply air can flow around and over the front-row occupants to reach the back rows even though they establish a local blocking effect to the supply airflows. Thus, the number of rows should not be a decisive factor for stratum ventilation. Therefore, it is reasonable to expect that with properly designed air supply parameters, stratum ventilation can be applied in a room with multiple rows of occupants. (C) 2015 Elsevier Ltd. All rights reserved.
机译:这项研究旨在探讨多层排屋的房间通风的技术可行性。进行了理论分析,人体试验和计算流体动力学(CFD)模拟。所有结果表明,层状通风可用于多排乘员的房间。人体测试表明,两排乘员都能获得可接受的低通风热舒适度。 CFD仿真表明,已经达到了可接受的热舒适水平,该水平通过EDTS(用于层通风的有效吃水温度),PMV(预测的平均投票),PPD(预测的不满意百分比)和PD(由于吃水而满意的百分比)进行了测量,并且三排乘员也获得了年轻的空气。这是因为,冷的新鲜供应空气可以在前排乘员周围和上方流动,以到达后排,即使他们对供给气流产生了局部阻塞作用。因此,行数不应成为层级通风的决定性因素。因此,可以合理预期的是,通过合理设计供气参数,可以在多排乘员的房间内进行分层通风。 (C)2015 Elsevier Ltd.保留所有权利。

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