Numerical study on effects of door-opening on airflow patterns and dynamic cross-contamination in an ISO class 5 operating room

被引：0
作者：
Dong S. [1 ]
Tu G. [1 ]
Cao R. [2 ]
Yu Z. [3 ]
机构：
[1] School of Environmental Science and Engineering, Tianjin University
[2] Beijing Building Construction Research Institute
[3] Hong Kong Hua Yi Designing Consultants (Shenzhen) Co. Ltd.
来源：
Transactions of Tianjin University | 2009年 / 15卷 / 03期
关键词：
Biological clean operating room; Computational fluid dynamic method; Contamination control; Door-opening; Operating room;
D O I：
10.1007/s12209-009-0037-y
中图分类号：
学科分类号：
摘要：
The contamination diffusion to the operating room when the door is open was simulated with a computational fluid dynamic (CFD) method, to give the extent of the contamination diffusion. The influence of the door-opening procedure was ignored since the door of the operating room is normally a sliding one. The flow field in the case of the 16 s course of opening the door was simulated. The simulated and the experimental results demonstrate that the extent of the contamination diffusion is around 1.5 m when there is no temperature difference between indoor and outdoor, and there is hardly any contamination diffusion when the temperature difference is 1°C. It can be concluded that the positive pressure difference in the operating room lost its function in preventing the contamination when the door is open. That the temperature of corridor is lower than that of operating room contributes to contamination control. Keeping 1°C temperature difference between corridor and operating room and increasing positive pressure and air flow are suggested. It is more secure to set up an anteroom if persons come in or out of the operation room at the course of surgery. © Tianjin University and Springer-Verlag 2009.
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页码：210 / 215
页数：5
相关论文
共 15 条
  • [1] Schicht H.H., 40 years of cleanroom technology-Some historical remarks, Proceedings of the 17th International Symposium on Contamination Control, pp. 1-10, (2004)
  • [2] Monika W., Joseph V., Stephane M., Diagonal air-distribution system for operating rooms: Experiment and modeling, Building and Environment, 39, 10, pp. 1171-1178, (2004)
  • [3] Chow T.-T., Yang X.-Y., Performance of ventilation system in a non-standard operating room, Building and Environment, 38, 12, pp. 1401-1411, (2003)
  • [4] Zhang R., Tu G., Ling J., Study on biological contaminant control strategies under different ventilation models in hospital operating room, Building and Environment
  • [5] Chow T.-T., Ward S., Liu J.P., Et al., Airflow in hospital operating theatre: The Hong Kong experience, Proceedings of the 6th International Conference on Healthy Buildings, pp. 419-424, (2000)
  • [6] Fletcher C.A.J., Mayer I.F., Eghlimi A., Et al., CFD as a building services engineering tool, International Journal on Architectural Science, 2, 3, pp. 67-82, (2001)
  • [7] Yan D., Selection for and discussion on pressure differential control methods for cleanrooms, Contamination Control and Airconditioning Technology, 4, (2005)
  • [8] Shen J., Concept and feature of China code for clean operating room, Contamination Control and Airconditioning Technology, S1, pp. 1-6, (2006)
  • [9] Brian W., Room pressure for critical environments, ASHRAE Journal, 45, 2, pp. 34-39, (2003)
  • [10] Gill K.E., HVAC design for isolation rooms, Heating, Piping and Air Conditioning, 66, 2, pp. 45-52, (1994)
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