Influence of movements on contaminant transport in an operating room

Brohus, Henrik; Balling, K. D.; Jeppesen, D.

doi:10.1111/j.1600-0668.2006.00454.x

Cited by 116 publications

(62 citation statements)

References 19 publications

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“…First of all, no movement was simulated in the OR. Brohus [16] found that this has some influence on the particle distribution. This could contribute as well, especially in cases where the downflow area is relatively unstable.…”

Section: Discussionmentioning

confidence: 98%

“…If measuring is impossible or impractical, it is also possible to do a simulation instead. [15][16][17][18] The VDI 2167 describes a way to test whether particles from the environment are able to penetrate the clean area and settle in the operating area. To perform an assessment according to VDI 2167, heated puppets have to be placed in the room.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Testing the effectiveness of operating room ventilation with regard to removal of airborne bacteria

Zoon

Loomans

Hensen

2011

Building and Environment

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Section: Discussionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Testing the effectiveness of operating room ventilation with regard to removal of airborne bacteria

Zoon

Loomans

Hensen

2011

Building and Environment

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“…Both experimental [12][13][14][15][16] and numerical methods [5,9,10,[17][18][19][20][21][22] have been adopted to study the induced air ow pattern due to obstacle motion. Since experimental measurement is timeconsuming and very expensive, Computational Fluid Dynamics (CFD) techniques have become powerful and e cient tools for studying engineering problems, including air ow and contaminant distribution in enclosures [10].…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of the effect of visitor's movement on bacteria-carrying particles distribution in hospital isolation room

2017

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Abstract. The aim of this paper is to simulate numerically the air ow induced by a walking visitor and its e ects on the contaminant transport and ventilation system e ectiveness. To this end, the following models will be used in this study: the Lagrangian Discrete Random Walk (DRW) model to trace the motion of BCPs, the dynamic mesh method to simulate the visitor movement, and the Reynolds Averaged Navier-Stokes (RANS) model to solve the air ow. The validation results of the numerical method are in full agreement with the available experimental data in the literature. The ndings of the present study indicate that the visitor's movement has remarkable e ect on the basic air ow, and the increase of the visitor moving speed can decrease the risk of infection in the AIIR. It is also found that the concentration of BCPs in the back of visitor exceeds 10 cfu/m 3 , and the small distance between the patient and visitor has a negative impact on increasing the BCPs infection of the patient in AIIR. At the same time, it is observed that the e ect of walking speed on the ventilation e ectiveness index is not remarkable.

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“…Actual comparison towards a specific performance indicator as assumed here was not performed, but the principle indicates that high level modeling may not provide other (integrated) answers. This certainly holds when other important parameters and boundary conditions are neglected or not well taken into account [27]. Generally an optimum will have to be searched for.…”

Section: Discussion Assessment Methodologymentioning

confidence: 99%

Performance Assessment of an Operating Theatre Design Using CFD Simulation and Tracer Gas Measurements

Loomans

Houdt

Lemaire³

et al. 2008

Indoor and Built Environment

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• A submitted manuscript is the version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. People interested in the research are advised to contact the author for the final version of the publication, or visit the DOI to the publisher's website.• The final author version and the galley proof are versions of the publication after peer review.• The final published version features the final layout of the paper including the volume, issue and page numbers. Link to publication General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal. Short titlePerformance based assessment methodology ventilation operating theatres KeywordsPerformance assessment, Methodology, Ventilation efficiency, Operating theatre, CFD, Measurement AbstractThe paper advocates the application of the performance based approach to arrive at improved, innovative and more functional buildings. It does so by describing the development of a performance assessment methodology for the assessment of the efficiency of a ventilation system in an operating theatre. This assessment is performed in the design and use phase to adhere to the performance based approach definition. The developed methodology is tested in a real case study with an innovative downflow plenum. Focus is on the low infection rate functional requirement.The results from the case study indicate that the assessment methodology functions and that the innovative downflow systems that was the topic of the case study adheres to the requirements set. Some parts of the methodology, however, allow openings for further research. On the other hand, a similar assessment can be extended to other requirements, such as thermal comfort, hypothermia, etc.

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Influence of movements on contaminant transport in an operating room

Cited by 116 publications

References 19 publications

Testing the effectiveness of operating room ventilation with regard to removal of airborne bacteria

Testing the effectiveness of operating room ventilation with regard to removal of airborne bacteria

Numerical simulation of the effect of visitor's movement on bacteria-carrying particles distribution in hospital isolation room

Performance Assessment of an Operating Theatre Design Using CFD Simulation and Tracer Gas Measurements

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