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Title: Airflow patterns through a sliding door during opening and foot traffic in operating rooms
Authors: Villafruela Espina, José Manuel
San José, Julio Francisco
Castro, Francisco
Zarzuelo, Andrés
Issue Date: 2016
Publisher: Elsevier
Description: Producción Científica
Citation: Building and Environment, 2016, Volume 109, Pages 190-198
Abstract: 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
Keywords: Ventilation
Indoor air pollution
Airborne infectious
Classification: Operating room
Door opening
Sliding door
Ultrasonic anemometry
Foot traffic
ISSN: 03601323
Peer Review: SI
DOI: 10.1016/j.buildenv.2016.09.025
Sponsor: Ministry of Economy and Competiveness project DPI2014-55357-C2-1-R cofinanced by the European Regional Development Fund (ERDF).
Publisher Version:
Rights Owner: Elsevier Ltd
Language: eng
Rights: info:eu-repo/semantics/restrictedAccess
Appears in Collections:ITAP - Artículos de revista
IF - Artículos de revista
DEP46 - Artículos de revista

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