Computation of air pattern and temperature distribution in mobile operating compartment with overpressure protection performance

Mobile operating compartment with overpressure protection performance can provide a comfortable and safety environment for the patients and the surgical team by minimizing the risk of biochemical contamination through appropriate air filtration and air distribution scheme. The air pattern and temperature distribution inside a mobile operating compartment with overpressure protection performance were simulated by the technique of computational fluid dynamics (CFD). The air pattern, the temperature distribution and its effects on persons in the compartment were also discussed. The results show that the air velocity is under 0.5m/s in the most zones and the air velocity distributed uniformly in the mobile operating compartment under the condition of the overpressure protection system working. The obvious temperature gradient doesn't exist in the vertical plane of the mobile operating compartment. The temperature distribution in the mobile operating compartment is quite uniform and the temperature is almost at 27°C with the temperature difference of almost 2°C under the condition of the temperature of 40°C outside the compartment. The human thermal comfort are good inside the mobile operating compartment with the overpressure protection system, which can provide a comfortable environment for the persons and satisfy requirements of the operation.