Natural ventilation studies within the frame of PASCOOL project.

Natural ventilation studies were carried out within the frame of PASCOOL EC Research Project. Research on this topic included experimental and modelling work aiming to fill the existing gaps in our knowledge of indoor air conditions in naturally ventilated buildings. Experiments were carried out in full scale and test cell facilities during the summer period. Single sided and cross ventilation as well as air flow through large internal openings were the basic topics that were studied. Existing models were validated and new ones were developed. A new computational tool for ventilation prediction was developed, based on the airflow network modeling. An intermediate approach, between network and CFD was proposed to take into account the impact of non-homogeneity on the indoor air motion.