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dc.contributor.authorBi, Yang
dc.contributor.authorJosefine Heggebø, Frida
dc.contributor.authorHarsem, Trond Thorgeir
dc.contributor.authorMathisen, Hans Martin
dc.contributor.authorAganovic, Amar
dc.contributor.authorCao, Guangyu
dc.date.accessioned2023-10-04T10:59:06Z
dc.date.available2023-10-04T10:59:06Z
dc.date.issued2021
dc.description.abstractDue to the outbreak of Covid-19, negative pressure operating room (NPOR) are strongly recommended to be applied to prevent spreading virus from infected patients to adjacent rooms during surgery procedures. However, there have been few experimental studies on the effect of OR pressure difference on the surgical microenvironment. This study aims to experimentally investigate the airflow distribution in the surgical microenvironment in an OR under different pressure conditions. All measurements were performed in a fullscale laboratory, which has an area of 62 m2, and a mixing ventilation. The air velocity and temperature in the surgical microenvironment of a lying patient were measured under positive pressure of 5 Pa, 10 Pa, 15 Pa and negative pressure of -5 Pa, -10 Pa and -15 Pa. The effect of heat generated by operating lamps was also considered. The results show that the airflow distribution around the surgical wound is dominated by thermal plume from the patient under the condition of both positive and negative pressure. In other areas of the surgical microenvironment, regardless the pressure difference conditions, the room airflow distribution by ventilation system is the dominant factor on surgical microenvironment. Variations in differential pressure can affect the temperature distribution around the surgical site, with a smaller differential pressure producing a slightly larger vertical temperature gradient.en_US
dc.identifier.citationBi Y, Josefine Heggebø, Harsem, Mathisen HM, Aganovic A, Cao G. Experimental study on the surgical microenvironment in an operating room with mixing ventilation under positive and negative pressure. SINTEF akademisk forlag; 2021. 8 p.. SINTEF proceedings(1)en_US
dc.identifier.cristinIDFRIDAID 1971672
dc.identifier.isbn978-82-536-1728-2
dc.identifier.urihttps://hdl.handle.net/10037/31428
dc.language.isoengen_US
dc.publisherSINTEF Academic Pressen_US
dc.relation.ispartofseriesSINTEF proceedings ; 1en_US
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2021 The Author(s)en_US
dc.titleExperimental study on the surgical microenvironment in an operating room with mixing ventilation under positive and negative pressureen_US
dc.type.versionpublishedVersionen_US
dc.typeChapteren_US
dc.typeBokkapittelen_US


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