20.500.12556/RUL-138943 Uporaba kalkulatorja COVID-19 (REHVA) v izobraževalni stavbi za preprečevanje širjenja koronavirusa (SARS-CoV-2) Use of the COVID-19 calculator (REHVA) in educational buildings to prevent the spread of coronavirus (SARS-CoV-2) Od začetka leta 2020, ko je na nas začel vplivati novi koronavirus (SARS-CoV-2), nas je to prisililo v hitro prilagajanje na nov in zelo nalezljiv virus. Ena glavnih prenosnih poti je po zraku preko izdihanih kapljic ali preko kapljic, suspendiranih na zraku, ki jim pravimo aerosoli. Ti lahko potujejo po zaprtih prostorih in v nekaterih primerih preko prezračevalnih sistemov v druga območja stavb, torej souporaba notranjih prostorov predstavlja veliko tveganje za okužbo. Po pregledu in analizi obravnavanih sistemov in prostorov izbrane izobraževalne stavbe smo s pomočjo kalkulatorja COVID-19 predstavnikov evropskih združenj za ogrevanje in prezračevanje (REHVA) izračunali verjetnost okužbe in reprodukcijsko število dogodka za različne vrednosti izbranih parametrov. Kalkulator temelji na Wells-Rileyjevem modelu, s pomočjo katerega smo prišli do ugotovitev, da ima na zmanjšanje verjetnosti okužbe pri izboljšavi ukrepov največ vpliva uporaba mask z boljšo filtracijo, nato sledi povečanje dovoda svežega zraka in še nekoliko manj vpliva ima dodajanje čistilnikov zraka v prostore. V našem primeru je razlika absolutne verjetnosti okužbe dvanajstodstotna za primer, ko prezračevanje ne deluje, v nasprotju z maksimalno vrednostjo prezračevanja. Since the beginning of 2020, when the new coronavirus (SARS-CoV-2) began to affect us, it forced us to quickly adapt to a new and highly contagious virus. One of the main transmission routes is through the air via exhaled droplets or droplets suspended in the air, which we call aerosols. These can travel indoors and, in some cases, through ventilation systems to other areas of buildings, so sharing indoor spaces poses a high risk of infection. After reviewing and analyzing the systems and rooms of the selected educational building, we calculated the probability of infection and the event reproduction number for different values of the selected parameters using the COVID-19 calculator from representatives of the European heating and ventilation associations (REHVA). The calculator is based on the Wells-Riley model, with the help of which we concluded that the use of masks with better filtration has the most significant impact on reducing the probability of infection when improving measures, followed by an increase in the supply of fresh air. The addition of air purifiers to the premises has a slightly less impact. In our example, the difference in the absolute probability of infection is twelve percent for the case when the ventilation does not work compared to the maximum ventilation value. COVID-19 SARS-CoV-2 prenos virusa po zraku prezračevanje kakovost zraka v zaprtih prostorih verjetnost okužbe Wells-Rileyjev model COVID-19 SARS-CoV-2 virus airborne transmission ventilation indoor air quality probability of infection Wells-Riley model true false false [T. Verbajs] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2022-08-26 08:30:24 2022-08-26 08:30:32 2023-10-24 08:56:44 0000-00-00 00:00:00 2022 0 Ljubljana 0 XXII, 55-57 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 697.9:519.2:628.513(043.2) 242519 119714819 17167.pdf 17167.pdf 1 9FDEEF8608AEF8B1D3F86A37F6A44437 460967030b4b438aeff74b27b9fcfcedaa2618abf4965953a6ad34759fc4f734 8feb75a7-2508-11ed-92af-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=159446 Fakulteta za strojništvo 0 0 0