Tehnikamaja ventilatsiooni-jahutussüsteemi anomaalia juhtumiuuring
Laen...
Kuupäev
2022
Kättesaadav alates
09.09.2022
Autorid
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Eesti Maaülikool
Abstrakt
Käesolevas bakalaureusetöös uuritakse Eesti Maaülikooli Tehnikamaja
ventilatsioonisüsteemi ja selles olevat anomaaliat, kus ruumide jahutus ei toimi. On
täheldatud, et klassiruumid on jahedad siis, kui ruumis on rohkem kui mõni inimene, aga
kui ruumis on vaid paar inimest, siis on ruum ülemäära soe ja jahutus ei täida enda
eesmärki. Selles töös uuritakse just seda olukorda. Et kindlaks teha, mis antud olukorda
põhjustab, uuriti ruumi siseneva jaheda õhu kogust ja selle temperatuuri, ruumis olevat
süsihappegaasikogust ning ruumi temperatuuri. Töös püstitatud hüpotees leidis katse näol
kinnitust. Kui ruumis on palju inimesi, on ka õhus suur hulk süsihappegaasi, mille tõttu
avatakse ruumi ventilatsioonitorus olev klapp ning jahe õhk saab suuremas koguses klassi
jahutada. Edasiseks uurimiseks tuleks hinnata Tehnikamaja ventilatsioonisüsteemi
automaatika juhtprogrammi ning uurida, mis programmi ülesehituses anomaaliat
põhjustab.
The aim of this thesis is to analyze the ventilation system of the Estonian University of Life Sciences’ technical building and the anomaly in it, where the cooling of the rooms does not work. It has been noticed that classrooms are cool if there are more than a few people in the room, but if there are only a couple of people in the room, the room stays too warm and the cooling system does not fulfil its function. This study examines that very situation. To determine what causes this situation, the amount of cool air entering the room and its temperature, the amount of carbon dioxide in the room and the temperature of the room were examined. The hypothesis proposed in the work was confirmed in the form of an experiment. If there are many people in the room, there is a large amount of carbon dioxide in the air, due to which the valve in the room ventilation pipe opens and a larger amount of cool air can enter the room. For further research, the control program of the automation system of technical building ventilation system should be checked and the anomaly caused by the structure of the program should be investigated.
The aim of this thesis is to analyze the ventilation system of the Estonian University of Life Sciences’ technical building and the anomaly in it, where the cooling of the rooms does not work. It has been noticed that classrooms are cool if there are more than a few people in the room, but if there are only a couple of people in the room, the room stays too warm and the cooling system does not fulfil its function. This study examines that very situation. To determine what causes this situation, the amount of cool air entering the room and its temperature, the amount of carbon dioxide in the room and the temperature of the room were examined. The hypothesis proposed in the work was confirmed in the form of an experiment. If there are many people in the room, there is a large amount of carbon dioxide in the air, due to which the valve in the room ventilation pipe opens and a larger amount of cool air can enter the room. For further research, the control program of the automation system of technical building ventilation system should be checked and the anomaly caused by the structure of the program should be investigated.
Kirjeldus
Bakalaureusetöö
Tehnika ja tehnoloogia õppekaval
Märksõnad
bakalaureusetööd, hooneautomaatika, Carnot' tsükkel, regeneratiivne soojusvaheti, rekuperatiivne soojusvaheti, thingsboard