RT info:eu-repo/semantics/article
T1 Analysis and assessment of factors affecting air inflow from areas adjacent to operating rooms due to door opening and closing
A1 San José Alonso, Julio Francisco
A1 Arroyo Gómez, Yolanda
A1 Sanz Tejedor, María Ascensión
A1 San José-Gallego, Reyes
K1 Operating room infection Three-dimensional ultrasonic anemometer Instant air velocity AHU exhaust fan flow Cycle door opening/closing Hinged/sliding doors
K1 330809
AB Operating rooms usually work with positive differential pressure in order to prevent the entry ofcontaminated air from adjacent areas and so maintain asepsis. Nevertheless, the opening of doorscauses this pressure difference to disappear and means that contaminating agents can enter fromadjacent areas. As a result, a knowledge of air flow pattern behaviour during the door openingand closing cycle is key to understanding the risk of infection and contamination in the operatingroom. The objective of this study is to quantify the air flow that enters the operating room duringa complete door opening and closing cycle. We specifically study two operating rooms equippedwith a heating ventilating air conditioning system: one with turbulent air flow and the other withlaminar air flow. We assess the influence of the type of door - hinged and sliding – for differentorigin values of flow exhaust fan regulation. In order to perform the measurements, a threedimensionalultrasonic anemometer that measures the magnitude and direction of the instantair velocity on the doorway of the door was used. Analysis of the results shows that the dooropening and closing process leads to air entering the operating room from the adjacent areas in allof the cases studied, regardless of the ventilation system used. Sliding doors are seen to reduce theamount of air entering from the adjacent area in all the scenarios tested. Sliding doors are thusconsidered the preferred option in operating rooms.
PB ELSERVIER
SN 2352-7102
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/67056
UL https://uvadoc.uva.es/handle/10324/67056
LA eng
NO Journal of Building Engineering 49 (2022) 104109
NO Producción Científica
DS UVaDOC
RD 05-feb-2025