Plenary lecture 2: the phenomenon identification of air circulation in spaces with harm releases

It is presents a method to identify the value of concentration in certain areas of rooms where the air is introducing superposition effect of flow convection natural/artificial and diffusion and a recirculation of its, which acts as a feedback circuit. Starting from the necessity of knowledge as accurate mathematical models that characterize the conduct of processes subject to automation was introduced progressively consider a simplified model of air recirculation for the release of carbon dioxide, then considered the phenomenon of flow convection, and finally was completed and the phenomenon of diffusion. Based on the results obtained by numerical simulation have made a number of conclusions regarding the location of the transducers, necessary to monitor environmental parameters and conclusions on specific points of execution. The result helps to understand how to conduct a recirculation phenomenon, and may form a basis for future adaptive adjustment of the concentration value of the room.