Numerical simulation on a horizontal airflow for airborne particles control in hospital operating room
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| Title: | Numerical simulation on a horizontal airflow for airborne particles control in hospital operating room |
|---|---|
| Authors: | Liu, Junjie jjliu@tju.edu.cn, Wang, Haidong1, Wen, Wenyong1 |
| Source: | Building & Environment. Nov2009, Vol. 44 Issue 11, p2284-2289. 6p. |
| Subject Terms: | *Air flow, *Indoor air pollution prevention, Computer simulation, Airborne infection, Operating room environmental engineering, Surgical site infection prevention, Computational fluid dynamics, Plumes (Fluid dynamics), Surgical instruments |
| Abstract: | Abstract: Provision of downward unidirectional clean air has been prevalent for decades in modern hospital operating rooms (ORs) to protect patients and surgeons from infectious airborne particles and has been found to be effective in reducing Surgical Site Infection (SSI), however, its shortcomings are inevitable. In this study we investigated an alternative of horizontal airflow pattern and the airflow performance in an OR with a dimension of 300cm long, 296cm wide and 240cm high. We also evaluated the effectiveness of the horizontal unidirectional airflow to control infectious airborne particles through onsite test and computational fluid dynamics (CFD) simulation method. The investigation was focused mainly on the influence of the medical lamps and the thermal plume with different airflow patterns around the critical zone under the horizontal air supply system. Ultraclean air was supplied from a fan-filter unit. The patient and surgeon were assumed to be releasing 200 and 400particles per minute, respectively. The results show that when the air supply and return facilities are installed on the same lateral wall to keep a state of horizontal flow ventilation in the OR, medical lamps and the thermal plume have no obvious influence on the horizontal airflow patterns around the critical zone in the OR, and performance of the air supply system is highly related to the relative position of the source to the wound. [Copyright &y& Elsevier] |
| Copyright of Building & Environment is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | GreenFILE |
| FullText | Text: Availability: 0 |
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| Header | DbId: 8gh DbLabel: GreenFILE An: 42963781 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Numerical simulation on a horizontal airflow for airborne particles control in hospital operating room – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Liu%2C+Junjie%22">Liu, Junjie</searchLink><i> jjliu@tju.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Haidong%22">Wang, Haidong</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Wen%2C+Wenyong%22">Wen, Wenyong</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Building+%26+Environment%22">Building & Environment</searchLink>. Nov2009, Vol. 44 Issue 11, p2284-2289. 6p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Air+flow%22">Air flow</searchLink><br />*<searchLink fieldCode="DE" term="%22Indoor+air+pollution+prevention%22">Indoor air pollution prevention</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+simulation%22">Computer simulation</searchLink><br /><searchLink fieldCode="DE" term="%22Airborne+infection%22">Airborne infection</searchLink><br /><searchLink fieldCode="DE" term="%22Operating+room+environmental+engineering%22">Operating room environmental engineering</searchLink><br /><searchLink fieldCode="DE" term="%22Surgical+site+infection+prevention%22">Surgical site infection prevention</searchLink><br /><searchLink fieldCode="DE" term="%22Computational+fluid+dynamics%22">Computational fluid dynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Plumes+%28Fluid+dynamics%29%22">Plumes (Fluid dynamics)</searchLink><br /><searchLink fieldCode="DE" term="%22Surgical+instruments%22">Surgical instruments</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract: Provision of downward unidirectional clean air has been prevalent for decades in modern hospital operating rooms (ORs) to protect patients and surgeons from infectious airborne particles and has been found to be effective in reducing Surgical Site Infection (SSI), however, its shortcomings are inevitable. In this study we investigated an alternative of horizontal airflow pattern and the airflow performance in an OR with a dimension of 300cm long, 296cm wide and 240cm high. We also evaluated the effectiveness of the horizontal unidirectional airflow to control infectious airborne particles through onsite test and computational fluid dynamics (CFD) simulation method. The investigation was focused mainly on the influence of the medical lamps and the thermal plume with different airflow patterns around the critical zone under the horizontal air supply system. Ultraclean air was supplied from a fan-filter unit. The patient and surgeon were assumed to be releasing 200 and 400particles per minute, respectively. The results show that when the air supply and return facilities are installed on the same lateral wall to keep a state of horizontal flow ventilation in the OR, medical lamps and the thermal plume have no obvious influence on the horizontal airflow patterns around the critical zone in the OR, and performance of the air supply system is highly related to the relative position of the source to the wound. [Copyright &y& Elsevier] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Building & Environment is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.buildenv.2009.03.019 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 6 StartPage: 2284 Subjects: – SubjectFull: Air flow Type: general – SubjectFull: Indoor air pollution prevention Type: general – SubjectFull: Computer simulation Type: general – SubjectFull: Airborne infection Type: general – SubjectFull: Operating room environmental engineering Type: general – SubjectFull: Surgical site infection prevention Type: general – SubjectFull: Computational fluid dynamics Type: general – SubjectFull: Plumes (Fluid dynamics) Type: general – SubjectFull: Surgical instruments Type: general Titles: – TitleFull: Numerical simulation on a horizontal airflow for airborne particles control in hospital operating room Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Liu, Junjie – PersonEntity: Name: NameFull: Wang, Haidong – PersonEntity: Name: NameFull: Wen, Wenyong IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 11 Text: Nov2009 Type: published Y: 2009 Identifiers: – Type: issn-print Value: 03601323 Numbering: – Type: volume Value: 44 – Type: issue Value: 11 Titles: – TitleFull: Building & Environment Type: main |
| ResultId | 1 |
