Natural Ventilation Control System by Fuzzy Control Technology

The natural ventilation in building is well known as the way to improve indoor climate. But, the accurate opening area in window can not been controlled really for the many parameters complex relation as well as strong coupling each other. Of course, the comfortable indoor environment cannot be obtained, and on the other hand, building energy cost could be increased. For the improvement, the intelligent control system for natural ventilation by using fuzzy technology is presented in this thesis. Firstly, the main parameters effecting natural ventilation are discussed, and the raveled model is presented based on the natural ventilation caused by wind and thermals, and the linear relation between ventilated quantity(VQ) and window opening area is confirmed finally. Next, according to this relation, the window intelligent control system by using fuzzy technology is constructed, and it is researched and analyzed in this thesis too.