Fundamental factors affecting germicidal irradiation - Part I. Experimental
Fundamental factors affecting germicidal irradiation - Part I. Experimental
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DOI：
10.1080/15459620701271693
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发表时间：
2007-05-01
影响因子：
2
通讯作者：
Brickner, Phillip W.
中科院分区：
文献类型：
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作者：
First, Melvin;Rudnick, Stephen N.;Brickner, Phillip W.
本研究的目的是探讨影响室内紫外线照射对空气中微生物杀灭效果的因素。这项工作是在一个为这种性质的调查而设计和装修的房间大小的房间里进行的。雾化的粘质沙雷氏菌、枯草芽孢杆菌孢子和牛痘病毒用作试验气溶胶。大多数数据是从稳态实验中收集的，这些实验比较了打开紫外灯时室内空气中存活生物的数量与关闭紫外灯时的数量，但也进行了一些衰减实验来比较这两种方法。紫外线功率水平有很强的影响，但只有在空气混合产生强烈的垂直气流的存在下才完全有效。研究的结论是，上层房间紫外线装置是一个复杂的系统，需要仔细整合紫外线灯具，紫外线电源和房间通风安排。
The objective of this research was to study the factors that relate to the effectiveness of upper-room ultraviolet germicidal irradiation for inactivating airborne microorganisms. The work was conducted in a room-sized chamber designed and furnished for investigations of this nature. Nebulized Serratia marcescens, Bacillus subtilis spores, and vaccinia virus were used as test aerosols. Most data were collected from steady-state experiments comparing the number of viable organisms in the chamber air remaining with UV lamps turned on to the number with UV lamps turned off, but some decay experiments were conducted to compare the two methods. UV power level had a strong influence but was fully effective only in the presence of air mixing that produced vigorous vertical air currents. A conclusion of the study is that an upper-room ultraviolet installation is a complex system that requires careful integration of UV luminaires, UV power, and room ventilation arrangements.