Ahjus toimuva põlemisprotsessi juhtimise automaatika
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Kuupäev
2016
Kättesaadav alates
Autorid
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Abstrakt
Magistritöö eesmärgiks oli uurida, kuidas põlemisautomaatika kasutamise abil vähendada
ahjude kütmisel välisõhku paisatavat emissiooni, parandada kasutegurit ning muuta
ahikütet samal ajal kasutajasõbralikumaks. Need välja toodud aspektid on tänapäeva
ühiskonnas üha suureneva tähtsusega. Magistritöö teoreetilises osas on käsitletud ahikütet
üldiselt ja sellele mõeldud põlemisautomaatika seadmeid. Praktilise osana on töö autor
ehitanud seadme, mis erineb teistest sarnastest sellepoolest, et põlemisprotsessi juhitakse
põlemisõhu reguleerimisega, mis põhineb suitsugaasis sisalduva hapniku osamahu
tagasisidel. Uudne on ka see, et hapniku osamahu määramiseks on kasutatud sõidukitele
mõeldud hapnikuandurit. Töös annab autor ülevaate põlemisautomaatika ehitamiseks
kasutatud riist- ja tarkvarast. Diplomitöö viimases osas on katseliselt hinnatud
projekteeritud ja ehitatud põlemisautomaatika vastavust seatud eesmärkidele. Tulemusena
saavutati automaatikat kasutades puhtam ja efektiivsem põlemine küttekoldes ning kauem
kestev põlemisprotsess, mis on oluline soojust salvestavate kütteseadmete seisukohalt.
The aim of the thesis was to study how the use of automatic combustion control is reducing emissions emitted from ovens, making them more efficient and user friendly. All the named aspects are becoming more important in modern society. In theoretical part of master’s thesis oven heating and automatic combustion control devices in general are described. The practical part of the work involves building a burning automation that differs from similar devices because combustion air control is based on feedback of oxygen measured in flue gas. Novel is also that the oxygen content measurement in flue gas is carried out with oxygen sensor used in automotive applications. The author gives an overview of hardware and software that is used to build control automatic for burning process in oven. In the last part of the diploma the conformity of designed and built automatic to the set goals is evaluated experimentally. As a result of automation the combustion process is cleaner, more efficient and longer lasting which is important in terms of furnaces that store heat.
The aim of the thesis was to study how the use of automatic combustion control is reducing emissions emitted from ovens, making them more efficient and user friendly. All the named aspects are becoming more important in modern society. In theoretical part of master’s thesis oven heating and automatic combustion control devices in general are described. The practical part of the work involves building a burning automation that differs from similar devices because combustion air control is based on feedback of oxygen measured in flue gas. Novel is also that the oxygen content measurement in flue gas is carried out with oxygen sensor used in automotive applications. The author gives an overview of hardware and software that is used to build control automatic for burning process in oven. In the last part of the diploma the conformity of designed and built automatic to the set goals is evaluated experimentally. As a result of automation the combustion process is cleaner, more efficient and longer lasting which is important in terms of furnaces that store heat.
Kirjeldus
Märksõnad
ahiküte, põlemine, automaatika, hapnikuandurid, magistritööd