Naslov
Natural ventilation of airport buildings in a rural area

Autori
Jelašić, Matko

Vrsta, podvrsta i kategorija rada
Ocjenski radovi, diplomski rad, diplomski

Fakultet
Fakultet strojarstva i brodogradnje

Mjesto
Zagreb

Datum
30.03

Godina
2023

Stranica
116

Mentor
Kozmar, Hrvoje ; Irrenfried ; Christoph

Ključne riječi
Environmental and structural aerodynamics ; rural area ; airport ; natural building ventilation ; laboratory experiments

Sažetak
Natural ventilation is the process of changing the air in the room without using ventilation devices. Supply of fresh air is carried out using the air pressure difference. The difference in air pressure occurs due to the influence of wind or buoyancy created due to the difference in air temperature. The need to supply the room with fresh air is important because of the human need for oxygen. Natural ventilation enables an economical distribution of air in the room compared to the use of ventilation devices. Such an approach to innovative room ventilation solutions is in line with the global initiative to reduce dependence on fossil fuels. Laboratory experiments were carried out in the boundary layer wind tunnel of the Graz University of Technology, Austria. The aim was to analyze the parameters that influence the natural ventilation of buildings in airports. As airports are mostly located outside urban areas, before laboratory measurements on building models, it was necessary to simulate the air flow similar to the rural atmospheric boundary layer. Building models in various configurations were exposed to the rural atmospheric boundary layer model to assess the natural ventilation of building models. The intensity of ventilation is expressed using the ACH parameter (air change rate). The measuring equipment included a hot-wire anemometer and a device for measuring gas concentration using an infrared sensor to determine the ACH. For the cubic building model, ACH was higher in the cross-ventilation experiments than for the single-sided ventilation of building models. The maximum ACH in the cross- ventilation experiments was obtained at the 15° flow incidence angle and at 75° for the single-sided ventilation of building models. The ACH for building models does not differ noticeably from the models without a roof. The higher the air flow velocity and the greater the angle of inclination of the windows, the higher ACH was obtained for hangar models with ceiling windows.

Izvorni jezik
Engleski

Znanstvena područja
Arhitektura i urbanizam, Građevinarstvo, Strojarstvo, Interdisciplinarne tehničke znanosti

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