Influence of opening and closing process of sliding door on interface airflow characteristic in operating room

Bin Zhou, Lili Ding, Fei Li, Ke Xue, Peter Vilhelm Nielsen, Yang Xudong

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

2 Citationer (Scopus)

Resumé

Indoor air environment inside operating room (OR) is crucial for the success of surgical operation. The opening and closing process of sliding door is very common in OR. In this case, the designed positive pressure will disappear. Since the air exchange characteristic at the interface of the sliding door will influence the Surgical Site Infection risk, the combined effects of temperature and pressure differences on interface airflow along with the air infiltration volume and intruding particles caused by the airflow are studied by theoretical and numerical methods. Two different cases are compared, where the temperature of OR is lower or higher than that of anteroom, respectively. Results show that the contaminants accumulate in the upper space of the OR due to the airflow pattern between two rooms when the temperature of OR is lower than the anteroom. This will increase the possibility that airflow carrying contaminants intrudes into OR. On the contrary, the contaminants are controlled in the lower space of the OR when the temperature of OR is higher than that of anteroom. On average, the particle intrusion ratio of the second case decreases by 55% compared with that of the first case. So, it is helpful to protect the clean environment of OR when the temperature of OR is higher than that of the anteroom. Moreover, the air infiltration volume of the closing phase is found unequal to that of the opening phase. This study provides the useful information for maintaining a clean indoor environment under operational condition.
OriginalsprogEngelsk
TidsskriftBuilding and Environment
Vol/bind144
Udgave nummerOctober
Sider (fra-til)459-473
Antal sider15
ISSN0360-1323
DOI
StatusUdgivet - 15 okt. 2018

Fingerprint

Operating rooms
airflow
sliding
air
subversion
temperature
pollutant
infiltration
Impurities
indoor air
Air
Infiltration
numerical method
Temperature
Numerical methods

Emneord

  • Clean operating room
  • Temperature difference
  • Pressure difference
  • Airborne particles
  • Sliding door
  • Numerical simulation

Citer dette

Zhou, Bin ; Ding, Lili ; Li, Fei ; Xue, Ke ; Nielsen, Peter Vilhelm ; Xudong, Yang. / Influence of opening and closing process of sliding door on interface airflow characteristic in operating room. I: Building and Environment. 2018 ; Bind 144, Nr. October. s. 459-473.
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title = "Influence of opening and closing process of sliding door on interface airflow characteristic in operating room",
abstract = "Indoor air environment inside operating room (OR) is crucial for the success of surgical operation. The opening and closing process of sliding door is very common in OR. In this case, the designed positive pressure will disappear. Since the air exchange characteristic at the interface of the sliding door will influence the Surgical Site Infection risk, the combined effects of temperature and pressure differences on interface airflow along with the air infiltration volume and intruding particles caused by the airflow are studied by theoretical and numerical methods. Two different cases are compared, where the temperature of OR is lower or higher than that of anteroom, respectively. Results show that the contaminants accumulate in the upper space of the OR due to the airflow pattern between two rooms when the temperature of OR is lower than the anteroom. This will increase the possibility that airflow carrying contaminants intrudes into OR. On the contrary, the contaminants are controlled in the lower space of the OR when the temperature of OR is higher than that of anteroom. On average, the particle intrusion ratio of the second case decreases by 55{\%} compared with that of the first case. So, it is helpful to protect the clean environment of OR when the temperature of OR is higher than that of the anteroom. Moreover, the air infiltration volume of the closing phase is found unequal to that of the opening phase. This study provides the useful information for maintaining a clean indoor environment under operational condition.",
keywords = "Clean operating room, Temperature difference, Pressure difference, Airborne particles, Sliding door, Numerical simulation, Clean operating room, Temperature difference, Pressure difference, Airborne particles, Sliding door, Numerical simulation",
author = "Bin Zhou and Lili Ding and Fei Li and Ke Xue and Nielsen, {Peter Vilhelm} and Yang Xudong",
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Influence of opening and closing process of sliding door on interface airflow characteristic in operating room. / Zhou, Bin; Ding, Lili; Li, Fei; Xue, Ke; Nielsen, Peter Vilhelm; Xudong, Yang.

I: Building and Environment, Bind 144, Nr. October, 15.10.2018, s. 459-473.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Influence of opening and closing process of sliding door on interface airflow characteristic in operating room

AU - Zhou, Bin

AU - Ding, Lili

AU - Li, Fei

AU - Xue, Ke

AU - Nielsen, Peter Vilhelm

AU - Xudong, Yang

PY - 2018/10/15

Y1 - 2018/10/15

N2 - Indoor air environment inside operating room (OR) is crucial for the success of surgical operation. The opening and closing process of sliding door is very common in OR. In this case, the designed positive pressure will disappear. Since the air exchange characteristic at the interface of the sliding door will influence the Surgical Site Infection risk, the combined effects of temperature and pressure differences on interface airflow along with the air infiltration volume and intruding particles caused by the airflow are studied by theoretical and numerical methods. Two different cases are compared, where the temperature of OR is lower or higher than that of anteroom, respectively. Results show that the contaminants accumulate in the upper space of the OR due to the airflow pattern between two rooms when the temperature of OR is lower than the anteroom. This will increase the possibility that airflow carrying contaminants intrudes into OR. On the contrary, the contaminants are controlled in the lower space of the OR when the temperature of OR is higher than that of anteroom. On average, the particle intrusion ratio of the second case decreases by 55% compared with that of the first case. So, it is helpful to protect the clean environment of OR when the temperature of OR is higher than that of the anteroom. Moreover, the air infiltration volume of the closing phase is found unequal to that of the opening phase. This study provides the useful information for maintaining a clean indoor environment under operational condition.

AB - Indoor air environment inside operating room (OR) is crucial for the success of surgical operation. The opening and closing process of sliding door is very common in OR. In this case, the designed positive pressure will disappear. Since the air exchange characteristic at the interface of the sliding door will influence the Surgical Site Infection risk, the combined effects of temperature and pressure differences on interface airflow along with the air infiltration volume and intruding particles caused by the airflow are studied by theoretical and numerical methods. Two different cases are compared, where the temperature of OR is lower or higher than that of anteroom, respectively. Results show that the contaminants accumulate in the upper space of the OR due to the airflow pattern between two rooms when the temperature of OR is lower than the anteroom. This will increase the possibility that airflow carrying contaminants intrudes into OR. On the contrary, the contaminants are controlled in the lower space of the OR when the temperature of OR is higher than that of anteroom. On average, the particle intrusion ratio of the second case decreases by 55% compared with that of the first case. So, it is helpful to protect the clean environment of OR when the temperature of OR is higher than that of the anteroom. Moreover, the air infiltration volume of the closing phase is found unequal to that of the opening phase. This study provides the useful information for maintaining a clean indoor environment under operational condition.

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KW - Temperature difference

KW - Pressure difference

KW - Airborne particles

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KW - Numerical simulation

KW - Clean operating room

KW - Temperature difference

KW - Pressure difference

KW - Airborne particles

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JO - Building and Environment

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SN - 0360-1323

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