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Building Simulation 2012, 5(1): 73-83 https://doi.org/10.1007/s12273-012-0071-x
Research Article | Issue | Published: 14 March 2012

Assessing the effects of sliding doors on an operating theatre climate

Show Author's Information Carla Balocco1,  Giuseppe Petrone2( ),  Giuliano Cammarata2
Energy Engineering Department, niversity of Firenze, Via S. Marta 3, 50139 Firenze, Italy
Department of Industrial and Mechanical Engineering, University of Catania, Viale Andrea Doria 6, 95125 Catania, Italy
Keywords:
CFD, ventilation, sliding doors, operating theatre climate
Cite this article:
Balocco C, Petrone G, Cammarata G. Assessing the effects of sliding doors on an operating theatre climate. Building Simulation, 2012, 5(1): 73-83. https://doi.org/10.1007/s12273-012-0071-x
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Abstract Full text Electronic supplementary material About this article

Surgical site infections (SSIs) are the second to third most common site of health care associated infections (HAIs). It is very important to maintain good indoor air quality (IAQ) and the best ventilation system in the operating theatre (OT) to ensure health and safety for the patient and surgical team, also to reduce the risk of post-operative wound infection. Then a significant consideration in OTs is the control of aerosols, anesthesia gases and smoke. The present paper uses the airflow modeling based on computational fluid dynamics (CFD) to study the indoor climate of a standard ISO5 class OT with an ultraclean air filter system and a total ceiling unidirectional diffuser. The OT has a heating, ventilation, and air conditioning (HVAC) plant with a laminar airflow (LAF) or ultraclean ventilation. A simple method to analyze the effects of different sliding door conditions combined with crossing persons and persons with a stretcher crossing, on the OT climate, airflow patterns and the indoor pressures scheme, is provided. The proposed simulation method, that belongs to the indirect approach for a numerical simulation of solid object movements in a fluid, provides important knowledge on complex flow phenomena combined with multi-physical conditions. Results obtained by transient simulation show disruptions of the airflow inside the OT and different airflow displacement and distribution caused by surgery staff movements and sliding door opening and closing, but in particular static pressure changes in the HVAC plant system with important effects on ventilation system working conditions and its energy performances.


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Electronic supplementary material
About this article

Assessing the effects of sliding doors on an operating theatre climate

Show Author's information Carla Balocco1, Giuseppe Petrone2( ), Giuliano Cammarata2
Energy Engineering Department, niversity of Firenze, Via S. Marta 3, 50139 Firenze, Italy
Department of Industrial and Mechanical Engineering, University of Catania, Viale Andrea Doria 6, 95125 Catania, Italy

Abstract

Surgical site infections (SSIs) are the second to third most common site of health care associated infections (HAIs). It is very important to maintain good indoor air quality (IAQ) and the best ventilation system in the operating theatre (OT) to ensure health and safety for the patient and surgical team, also to reduce the risk of post-operative wound infection. Then a significant consideration in OTs is the control of aerosols, anesthesia gases and smoke. The present paper uses the airflow modeling based on computational fluid dynamics (CFD) to study the indoor climate of a standard ISO5 class OT with an ultraclean air filter system and a total ceiling unidirectional diffuser. The OT has a heating, ventilation, and air conditioning (HVAC) plant with a laminar airflow (LAF) or ultraclean ventilation. A simple method to analyze the effects of different sliding door conditions combined with crossing persons and persons with a stretcher crossing, on the OT climate, airflow patterns and the indoor pressures scheme, is provided. The proposed simulation method, that belongs to the indirect approach for a numerical simulation of solid object movements in a fluid, provides important knowledge on complex flow phenomena combined with multi-physical conditions. Results obtained by transient simulation show disruptions of the airflow inside the OT and different airflow displacement and distribution caused by surgery staff movements and sliding door opening and closing, but in particular static pressure changes in the HVAC plant system with important effects on ventilation system working conditions and its energy performances.

Keywords: CFD, ventilation, sliding doors, operating theatre climate

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Publication history
Copyright

Publication history

Received: 05 December 2011
Revised: 06 February 2012
Accepted: 07 February 2012
Published: 14 March 2012
Issue date: March 2012

Copyright

© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2012
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