Nowadays, people are looking for solutions related to ventilation, cooling or heat demand systems, which
would be energy efficient and, at the same time, would not cause the degradation of the surrounding environment. As
far as ventilation is concerned, an good solution is a natural ventilation, which improves thermal comfort rooms without
increasing the consumption of electrical energy in the building. In order to improve the mode of action of the natural
ventilation in the building, one can mount various elements supporting the air flow. One of them is a solar chimney. In
order to check the correct operation of a gravity ventilation installation in Poland’s climatic conditions, the measurements
was carried out on a test stand on the 3.1 building of UTP University of Science and Technology in Bydgoszcz.
The received results show the intensification of the air flow through the room the value between 50% and 150%, depending
on a measuring hour (Chen et al. 2003). These research results were compared with the research results received
before the installation of the solar chimney on the ducts of the gravity ventilation.
Solar collector angle optimization for maximum air flow rate in the solar chimney