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Design of Hospital Operating Room Ventilation using Computational Fluid Dynamics ; Utforma operationssalars ventilationssystem med hjälp av beräkningsströmningsmekanik
The history of surgery is nearly as old as the human race. Control of wound infection has always been an essential part of any surgical procedure, and is still an important challenge in hospital operating rooms today. For patients undergoing surgery there is always a risk that they will develop some kind of postoperative complication. It is widely accepted that airborne bacteria reaching a surgical site are mainly staphylococci released from the skin flora of the surgical staff in the operating room and that even a small fraction of those particles can initiate a severe infection at the surgical site. Wound infections not only impose a tremendous burden on healthcare resources but also pose a major threat to the patient. Hospital-acquired infection ranks amongst the leading causes of death within the surgical patient population. A broad knowledge and understanding of sources and transport mechanisms of infectious particles may provide valuable possibilities to control and minimize postoperative infections. This thesis contributes to finding solutions, through analysis of such mechanisms for a range of ventilation designs together with investigation of other factors that can influence spread of infection in hospitals, particularly in operating rooms. The aim of this work is to apply the techniques of computational fluid dynamics in order to provide better understanding of air distribution strategies that may contribute to infection control in operating room and ward environments of hospitals, so that levels of bacteria-carrying particles in the air can be reduced while thermal comfort and air quality are improved. A range of airflow ventilation principles including fully mixed, laminar and hybrid strategies were studied. Airflow, particle and tracer gas simulations were performed to examine contaminant removal and air change effectiveness. A number of further influential parameters on the performance of airflow ventilation systems in operating rooms were examined and relevant measures for improvement were ...
Design of Hospital Operating Room Ventilation using Computational Fluid Dynamics ; Utforma operationssalars ventilationssystem med hjälp av beräkningsströmningsmekanik
The history of surgery is nearly as old as the human race. Control of wound infection has always been an essential part of any surgical procedure, and is still an important challenge in hospital operating rooms today. For patients undergoing surgery there is always a risk that they will develop some kind of postoperative complication. It is widely accepted that airborne bacteria reaching a surgical site are mainly staphylococci released from the skin flora of the surgical staff in the operating room and that even a small fraction of those particles can initiate a severe infection at the surgical site. Wound infections not only impose a tremendous burden on healthcare resources but also pose a major threat to the patient. Hospital-acquired infection ranks amongst the leading causes of death within the surgical patient population. A broad knowledge and understanding of sources and transport mechanisms of infectious particles may provide valuable possibilities to control and minimize postoperative infections. This thesis contributes to finding solutions, through analysis of such mechanisms for a range of ventilation designs together with investigation of other factors that can influence spread of infection in hospitals, particularly in operating rooms. The aim of this work is to apply the techniques of computational fluid dynamics in order to provide better understanding of air distribution strategies that may contribute to infection control in operating room and ward environments of hospitals, so that levels of bacteria-carrying particles in the air can be reduced while thermal comfort and air quality are improved. A range of airflow ventilation principles including fully mixed, laminar and hybrid strategies were studied. Airflow, particle and tracer gas simulations were performed to examine contaminant removal and air change effectiveness. A number of further influential parameters on the performance of airflow ventilation systems in operating rooms were examined and relevant measures for improvement were ...
Design of Hospital Operating Room Ventilation using Computational Fluid Dynamics ; Utforma operationssalars ventilationssystem med hjälp av beräkningsströmningsmekanik
Sadrizadeh, Sasan (author)
2016-01-01
Theses
Electronic Resource
English
Airborne Particle Control , Ventilation System , Maskinteknik , operationssal på sjukhus , Mechanical Engineering , ventilationssystem , Colony Forming Unit , Naturresursteknik , Environmental Engineering , termisk komfort , kontroll av luftburna partiklar , bakteriebärande partikel , Air Quality , Active-Passive Air Sampling methods , Bacteria Carrying Particle , kolonibildande enhet , aktiva-passiva provtagningsmetoder för luft , Surgical Site Infection , Thermal Comfort , infektion i samband med operation , Architecture , Hospital Operating Room , luftkvalitet , Computational Fluid Dynamics (CFD) , Arkitektur
DDC:
690
Computational Fluid Dynamics Applications in Hospital Ventilation Design
| Online Contents | 2003
Computational Fluid Dynamics Applications in Hospital Ventilation Design
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Application of computational fluid dynamics in room ventilation
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Numerical Simulation on Conventional Ventilation System for Hospital Operating Room
| BASE | 2016