An Outbreak Of Room Ventilation And Air Conditioning Program

This paper carries out some disquisition on the way of infection sickroom ventilation, in order to make the indoor-air distributing reasonble, extracted air inoffensive, and the air-condition energy- economical on the base of the pestiferous peculiarities of respiratory infections such as SARS. It simulates the airflow concentration and temperature structure of the isolated sickroom by using the theoretics and methods of CFD. On the basis of the theoretical analysis of physical and mathematical model, the iterative method is adopted to the conjugated governing equations, and the numeration of the coefficient to the convection-diffusion equation, SIMPLEC algorism, staggered grid method are used, and so on. K-e turbulence model linked with the wall function are applied to the boundary condition. The results of numerical simulation for many different kinds of airflow are expressed in streamline chart of airflow structure through the computer graphics to prove the rationality of the flow structure in this paper, and some kinds of methods for sterilizing will be comparing and analyzing to confirm a best method to listerize the extracted air from sickrooms, proving it possible by data from experiments. Then, the paper comes out some methods about energy reclaim from the air by dissertation calculating and comparing.