RT info:eu-repo/semantics/article
T1 Airflow patterns through a sliding door during opening and foot traffic in operating rooms
A1 Villafruela Espina, José Manuel
A1 San José Alonso, Julio Francisco
A1 Castro Ruiz, Francisco
A1 Zarzuelo Sánchez, Andrés Manuel
K1 Ventilation
K1 Indoor air pollution
K1 Airborne infectious
K1 Operating room
K1 Door opening
K1 Sliding door
K1 Ultrasonic anemometry
K1 Foot traffic
AB It is common practice for operating rooms (OR) to have more pressure than the adjacent enclosures. This is to prevent the entry of potentially contaminated air and the consequent risk of wound infection. However, when the OR door is opened the pressure difference between the two areas disappears and can cause containment failures. If a person enters or leaves the OR during door operation, additional perturbations are also generated in the airflow pattern in the doorway. In this paper, instantaneous airflows are measured during the passage of a person through a sliding door in a real OR with the HVAC system working under operating conditions. An ultrasonic anemometer that measures the magnitude and direction of the instantaneous air velocity in the doorway is used. Results show that, even though the OR has a sliding door and an initial overpressure of 20 Pa, together with what is, a priori, a good HVAC system control strategy, a small volume of air enters the OR during a cycle of door opening and closing even without the passage of a person. Furthermore, if a person walks through the door the volume of air entering the OR is higher, especially if the person enters the OR. © 2016 Elsevier Ltd
PB Elsevier
SN 03601323
YR 2016
FD 2016
LK http://uvadoc.uva.es/handle/10324/33058
UL http://uvadoc.uva.es/handle/10324/33058
LA eng
NO Building and Environment, 2016, Volume 109, Pages 190-198
NO Producción Científica
DS UVaDOC
RD 18-nov-2024