Bed-integrated local exhaust ventilation system combined with local air cleaning for improved IAQ in hospital patient rooms
Bed-integrated local exhaust ventilation system combined with local air cleaning for improved IAQ in hospital patient rooms
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DOI：
10.1016/j.buildenv.2016.02.006
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发表时间：
2016-05-01
影响因子：
7.4
通讯作者：
Bolashikov, Zhecho D.
中科院分区：
文献类型：
--
作者：
Bivolarova, Mariya P.;Melikov, Arsen K.;Bolashikov, Zhecho D.
研究了一种与空气净化织物（经酸处理的活性碳纤维（ACF）织物）相结合的用于床集成局部排气通风系统的通风床垫（VM）的性能。确定了VM和局部空气清洁对减少医院病房中人体产生的生物流出物暴露的单独和组合效果。全尺寸的实验进行了装修作为一个单人床病房气候室。使用两个加热假人来模拟房间里的患者和医生。患者躺在配有VM的床上。患者的身体用棉床单或用ACF材料作为毯子覆盖。从患者腹股沟释放的氨气模拟了身体产生的生物流出物。在丁坝的位置处，VM的表面区域被穿孔，床微环境的污染空气通过该穿孔排出。研究了两种操作模式：1）排出的污染空气被排出房间，以及2）污染空气被安装在床垫内的ACF材料清洁并再循环回到房间。两种操作模式有效地减少了房间中产生的生物流出物约70%。当VM仅在1.5 Lis下操作并且ACF用作毯子时，身体排放的氨的暴露减少高达96%。(C)2016爱思唯尔有限公司版权所有
The performance of a ventilated mattress (VM) used as a bed-integrated local exhaust ventilation system combined with air cleaning fabric (acid-treated activated carbon fibre (ACF) fabric) was developed and studied. The separate and combined effect of the VM and the local air cleaning for reducing the exposure to body generated bio-effluents in a hospital room was determined. Full-scale experiments were conducted in a climate chamber furnished as a single-bed patient room. Two heated dummies were used to simulate a patient and a doctor in the room. The patient was lying on a bed equipped with the VM. The patient's body was covered with either a cotton sheet or with the ACF material used as a blanket. Ammonia gas released from the patient's groins simulated the body generated bio-effluents. At the location of the groins the surface area of the VM was perforated through which the contaminated air of the bed micro-environment was exhausted. Two modes of operation were studied: 1) the exhausted polluted air was discharged out of the room and 2) the polluted air was cleaned by the ACF material installed inside the mattress and recirculated back into the room. Both modes of operation efficiently reduced the generated bio-effluents in the room with about 70%. Reduction in the exposure to body emitted ammonia was up to 96% when the VM was operated at only 1.5 Lis and the ACF was used as a blanket. (C) 2016 Elsevier Ltd. All rights reserved.