OP Vent - Energy efficient ventilation in operating rooms
The project aims to develop and demonstrate a new energy efficient ventilation principle related to energy consumption and occurrence of colony formed units on operating rooms and in operating fields as a goal for the purity of the room air.
The project aims to develop and demonstrate a new energy efficient ventilation principle related to energy consumption and occurrence of colony formed units on operating rooms and in operating fields as a goal for the purity of the room air. Specifictly the project will develop new ventilation devices, components for efficiency control and control strategies for ventilation systems which differentiate related to operating type, operating patterns in the room and the organising of the staff.
OP Vent aims to compare the energy consumption and number of airborne bacteria and particles under laminar airflow (LAF) vs turbulent airflow (TAF) with 100% or 50% reduced fresh air exchange in operation theatres.
We conducted 32 simulated operations under 4 conditions: LAF or TAF with either full (n=8+8) or 50% reduced (n=8+8) air exchange. Microbial air concentration (mean CFU/m3 ±SD) with LAF under full and 50% reduced air exchange were 0.4±0.8 and 0.4±0.4 respectively, whereas air contamination under TAF conditions had significantly higher values of 7.6±2.0 and 10.3±8.1, respectively (p5 μm) airborne particulate (mean no./m3 ±SD) with LAF under full and 50% reduced air exchange were 1.581±2.841 and 1.018±1.084 respectively, whereas particulate under TAF conditions were 7.923±5.151 and 6.157±2.439 (p>0.05).
The study shows that TAF (50%) is more energy efficient than LAF (100 %). Moreover, microbial air contamination was significantly lower under LAF ventilation compared to TAF during simulated THA under both full and 50% reduced air exchange.
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Category
Participants
| Partner | Subsidy | Auto financing |
|---|---|---|
| Lean Energy Cluster | ||
| Region Syddanmark | ||
| FOURNAIS ENERGI ApS | ||
| JRV A/S | ||
| Region Syddanmark |
