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全空调医院中的空气传播感染。II. 气态和空气传播颗粒物在通风通道中的传输。

Airborne infection in a fully air-conditioned hospital. II. Transport of gaseous and airborne particulate material along ventilated passageways.

作者信息

Lidwell O M

出版信息

J Hyg (Lond). 1975 Aug;75(1):45-56. doi: 10.1017/s0022172400047057.

DOI:10.1017/s0022172400047057
PMID:1056971
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2130243/
Abstract

A mathematical model is described for the transport of gaseous or airborne particulate material between rooms along ventilated passageways. Experimental observations in three hospitals lead to a value of about 0.06 m.2/sec. for the effective diffusion constant in air without any systematic directional flow. The 'constant' appears to increase if there is any directional flow along the passage, reaching about 0.12 m. 2/sec. at a flow velocity of 0.04 m./sec. Together with previously published methods the present formulae make it possible to calculate the expected average amounts of gaseous or particulate material that will be transported from room to room in ventilated buildings in which the ventilation and exchange airflows can be calculated. The actual amounts transported in occupied buildings, however, vary greatly from time to time.

摘要

本文描述了一个数学模型，用于研究气态或空气中的颗粒物在通风通道相连的房间之间的传输。在三家医院进行的实验观察得出，在没有任何系统性定向气流的空气中，有效扩散常数约为0.06平方米/秒。如果通道中有任何定向气流，该“常数”似乎会增加，在流速为0.04米/秒时达到约0.12平方米/秒。结合先前发表的方法，当前公式能够计算出在通风建筑物中，从一个房间传输到另一个房间的气态或颗粒物的预期平均量，前提是可以计算出通风和换气气流。然而，在有人居住的建筑物中实际传输的量会随时间大幅变化。

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引用本文的文献

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Airborne infection in a fully air-conditioned hospital. II. Transfer of airborne particles between rooms resulting from the movement of air from one room to another.全空调医院中的空气传播感染。II. 因空气从一个房间流向另一个房间导致的空气传播颗粒在房间间的转移。
J Hyg (Lond). 1975 Aug;75(1):31-44. doi: 10.1017/s0022172400047045.
2
Airborne infection in a fully air-conditioned hospital. I. Air transfer between rooms.全空调医院中的空气传播感染。I. 病房间的空气转移
J Hyg (Lond). 1975 Aug;75(1):15-30. doi: 10.1017/s0022172400047033.
3
Air exchange through doorways. The effect of temperature difference, turbulence and ventilation flow.通过门口的空气交换。温差、湍流和通风气流的影响。
J Hyg (Lond). 1977 Aug;79(1):141-54. doi: 10.1017/s0022172400052931.

本文引用的文献

1
Studies of the effectiveness of an isolation ward.隔离病房有效性研究。
J Hyg (Lond). 1969 Dec;67(4):649-58. doi: 10.1017/s0022172400042108.
2
The control by ventilation of airborne bacterial transfer between hospital patients, and its assessment by means of a particle tracer. 3. Studies with an airborne-particle tracer in an isolation ward for burned patients.
J Hyg (Lond). 1972 Jun;70(2):299-312. doi: 10.1017/s002217240002235x.
3
The control by ventilation of airborne bacterial transfer between hospital patients, and its assessment by means of a particle tracer. II. Ventilation in subdivided isolation units.通过通风控制医院患者之间空气传播细菌的转移及其用粒子示踪剂进行的评估。II. 分隔隔离单元中的通风
J Hyg (Lond). 1972 Jun;70(2):287-97. doi: 10.1017/s0022172400022348.
4
Airborne infection in a fully air-conditioned hospital. II. Transfer of airborne particles between rooms resulting from the movement of air from one room to another.全空调医院中的空气传播感染。II. 因空气从一个房间流向另一个房间导致的空气传播颗粒在房间间的转移。
J Hyg (Lond). 1975 Aug;75(1):31-44. doi: 10.1017/s0022172400047045.
5
Airborne infection in a fully air-conditioned hospital. I. Air transfer between rooms.全空调医院中的空气传播感染。I. 病房间的空气转移
J Hyg (Lond). 1975 Aug;75(1):15-30. doi: 10.1017/s0022172400047033.