Influence of the shape of surgical lights on the disturbance of the airflow

W.A.C. Zoon, M.G.M. Heijden, van der, J.L.M. Hensen, M.G.L.C. Loomans

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Operating room ventilation systems are used to keep the wound area of a patient free from airborne bacteria. Surgical lighting is one of the major disturbances in operating room ventilation systems. This paper describes results from a series of measurements that aim to qualify and quantify the influence of the shape of an operating lamp on the disturbance of the air flow around the lamp. Visualization and particle concentration measurements in combination with a fixed particle source are used to study the upward transport mechanism of particles underneath an operating lamp. Air velocity measurements are used to determine to quantify the size of the wake underneath the lamp. Several different shapes are used in this investigation. The results of the investigation are used to compare with the laminar flow indexes by Leenemann and Oostlander and to assess how well they describe the performance of a lamp with regard to keeping the air clean. The results from these experiments in the future will be applied for CFD validation.
Original languageEnglish
Title of host publicationProceedings of the 11th International Conference on Air Distribution in Rooms (ROOMVENT 2009), 24-27 May 2009, Busan, Korea
Publication statusPublished - 2009


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