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Vpliv stopnje prezračevanja na kakovost notranjega zraka v izobraževalnih ustanovah in pisarnah : magistrsko delo
Šelekar, Nives (Author), Dovjak, Mateja (Mentor) More about this mentor... This link opens in a new window, Prek, Matjaž (Co-mentor)

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Abstract
Magistrsko delo obravnava vpliv različnih stopenj prezračevanja na koncentracijo ogljikovega dioksida v notranjem zraku, s poudarkom na izobraževalnih ustanovah in pisarnah. Želeli smo ugotoviti, ali so zahtevane količine svežega zraka, predvidene po slovenski zakonodaji, zadostne za zagotavljanje koncentracij ogljikovega dioksida v mejnih vrednostih v učilnici in pisarni. Za ta namen smo izvedli simulacije s programskim orodjem, rezultate smo verificirali z izvedenimi meritvami v testnem prostoru. Izvedli smo tudi sistematičen pregled študij na tematiko kakovosti notranjega zraka v izobraževalnih ustanovah in pisarnah, vpliv koncentracij ogljikovega dioksida v notranjem okolju na storilnost ter zdravje in odsotnost uporabnikov. Z dobljenimi rezultati tega magistrskega dela smo prišli do zaključka, da je zagotovitev kakovostnega notranjega zraka nujno potrebna. Minimalna predpisana stopnja prezračevanja po Pravilniku o prezračevanju in klimatizaciji stavb, Uradni list RS, št. 42/2002 s spr., ki znaša 0,5 h-1, namreč ne zadošča za zagotovitev kakovosti notranjega zraka v modelnem prostoru učilnice in predavalnice. Za izračun potrebne količine dovedenega zunanjega zraka bi morali za obravnavan modelni prostor upoštevati priporočeno količino zunanjega zraka 30 m3/h na osebo. Do podobnih ugotovitev so prišle tudi raziskave v igralnicah vrtca in drugje. S to priporočeno vrednostjo namreč zagotovimo, da so koncentracije ogljikovega dioksida v mejah, ki zagotavljajo najmanjši možen vpliv na kognitivno učinkovitost, storilnost in zdravje ljudi, ki jih navajajo epidemiološke raziskave. Na ravni zakonskih zahtev predlagamo spremembe mejnih vrednosti koncentracij ogljikovega dioksida v notranjem zraku na nižje vrednosti od trenutno predpisanih, kar podpirajo tudi ugotovitve ostalih raziskav.

Language:Slovenian
Keywords:stopnja prezračevanja, kakovost notranjega zraka, ogljikov dioksid, izobraževalne ustanove, pisarne, sindrom bolnih stavb
Work type:Master's thesis/paper (mb22)
Tipology:2.09 - Master's Thesis
Organization:FGG - Faculty of Civil and Geodetic Engineering
Year:2020
Publisher:[N. Šelekar]
UDC:697:727(497.4)(043.3)
COBISS.SI-ID:15541763 Link is opened in a new window
Views:206
Downloads:97
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Secondary language

Language:English
Title:The effect of ventilation rates on indoor air quality in educational institutions and offices : master thesis
Abstract:
The aim of master thesis was to investigate the effect of ventilation rates on concetration of carbon dioxide in the indoor environment, especially in educational institutions and offices. We wanted to determine whether the required quantities of fresh air, as provided by Slovenian law, are sufficient to ensure the concentration of carbon dioxide in the limit values. For this purpose, simulations were performed with a software tool and the results were verified with measurements made in the test room. We also conducted a systematic review of studies on indoor air quality in educational institutions and offices on the impact of carbon dioxide concetrations in the indoor environment on productivity, health and absence. With the results of this master thesis we came to the conclusion that the provision of quality indoor air in absolutely necessary. Minimum prescibed ventilation rate 0,5 h-1 according to the Rules on the ventilation and air conditioning of buildings (O.J. RS, No. 42/2002, chang.) is not sufficient to ensure the quality of indoor air in the model space of the classroom and lecture room. For the calculation of required amount of outside air supply for the model space under consideration the recommended amount of outside air 30 m3/h per person should be used. Similar findings have been made in kindergarten and elsewhere. This recommended value ensures that carbon dioxide concetrations are within the limits that provide the least impact on cognitive performance, productivity and human health, as reported by epidemiological research. At the level of legal requirements, we propose to change the limit values for carbon dioxide concentrations in indoor air to lower values than currently prescribed, which is supported by the findings of other studies.

Keywords:ventilation rate, indoor air quality, carbon dioxide, educational institution, office, sick building syndrome

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