冬季办公室供暖条件下置换式通风系统与混合式通风系统的局部平均风龄比较

IF 3.1 3区 工程技术 Q2 CONSTRUCTION & BUILDING TECHNOLOGY Buildings Pub Date : 2024-01-01 DOI:10.3390/buildings14010115
Ik-Hyun An, Su-Hoon Park, Yong-Ho Lee, Chang-Hoon Lee, Sang-Bum Seo, Sang-Hyun Cho, Hyun-Woo Lee, S. Yook
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引用次数: 0

摘要

研究人员设计了一种新颖的置换通风系统(DVS),利用四通盒式风机盘管装置(FCU)和空气净化器(AP)提供洁净空气。本研究中建议的置换通风系统包括通过 FCU 和安装在天花板上的扩散器吸入室内空气,利用 FCU 控制空气温度,然后通过放置在地板上的空气净化器将空气排回办公室。所考虑的对比通风系统是典型的混合通风系统(MVS),该系统利用安装在天花板上的扩散器吸入和排出室内空气。在冬季供暖条件下,以当地平均气温作为指数来比较 DVS 和 MVS 的室内空气质量。结果发现,在改善冬季室内空气质量方面,DVS 比 MVS 更有效。此外,与 MVS 相比,使用本研究设计的 DVS 的优势在于办公空间的气温变化更加均匀。因此,将天花板上安装 FCU 和地板上安装 AP 的室内空间结构改造为使用本研究设计的 DVS,预计将大大有助于提高室内空气质量。
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Comparison of Local Mean Age of Air between Displacement Ventilation System and Mixing Ventilation System in Office Heating Conditions during Winter
A novel displacement ventilation system (DVS) was designed using a four-way cassette fan coil unit (FCU) and air purifiers (APs) for supplying clean air. The proposed DVS in this study involved drawing indoor air through the FCU and diffusers installed in the ceiling, controlling air temperature using the FCU, and then discharging it back into the office through the APs placed on the floor. The comparative ventilation system considered was the typical mixing ventilation system (MVS) that intakes and exhausts indoor air using diffusers installed on the ceiling. The local mean age of air was used as an index to compare indoor air quality between DVS and MVS under winter heating conditions. It was found that the DVS was more effective in improving indoor air quality in winter than the MVS. Moreover, compared to the MVS, utilizing the DVS designed in this study resulted in the advantage of a much more uniform air temperature variation in the office space. Therefore, it is anticipated that modifying the structure of an indoor space with an FCU installed in the ceiling and APs on the floor to use the DVS designed in this study would greatly assist in enhancing indoor air quality.
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来源期刊
Buildings
Buildings Multiple-
CiteScore
3.40
自引率
26.30%
发文量
1883
审稿时长
11 weeks
期刊介绍: BUILDINGS content is primarily staff-written and submitted information is evaluated by the editors for its value to the audience. Such information may be used in articles with appropriate attribution to the source. The editorial staff considers information on the following topics: -Issues directed at building owners and facility managers in North America -Issues relevant to existing buildings, including retrofits, maintenance and modernization -Solution-based content, such as tips and tricks -New construction but only with an eye to issues involving maintenance and operation We generally do not review the following topics because these are not relevant to our readers: -Information on the residential market with the exception of multifamily buildings -International news unrelated to the North American market -Real estate market updates or construction updates
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