Mootoribensiini ja biokütuste segude mõju sädesüütega mootori heitgaaside emissioonile
Laen...
Kuupäev
2017
Kättesaadavus
Autorid
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Eesti Maaülikool
Abstrakt
Bakalaureusetöö eesmärgiks on uurida mootoribensiini ja biokütuste segude mõju
sädesüütega mootori heitgaaside emissioonile.
Antud lõputöö käigus teostati segunemiskatsed, mille tulemusena valiti välja 5 kütust,
mida kasutati kütusesegude moodustamisel. Kõiki kütusesegusid moodustati kahes
mahuprotsendis: 15% ja 25%, peamiseks koostisosaks jäi mootoribensiin. Katsetamistel
kasutati Eesti Maaülikooli kütuse- ja mootorilaborit. Kütuselaboris mõõdeti kütusesegude
fraktsioonikoostist, tihedust, viskoossust, korrosiivsust ning aururõhku. Mootorilaboris
kasutati katsetusteks Audi 1,8l bensiinimootorit ning heitgaase mõõdeti Bosch heitgaaside
analüsaatoriga. Analüüsiti CO, CO , NOx, HC ning O sisaldust heitgaasides. Mootori
seadistust katsete teostamiseks ei muudetud.
Katsete tulemusest selgus, et teatud biokütuste lisamisega on võimalik vähendada
heitgaasides sisalduvate kahjulike ainete hulka. Rapsiõli ja butanooli kütusesegude puhul
paranes põlemisprotsess ning vähenes heitgaaside emissioon. Selleks, et paremaid tulemusi
saavutada, tuleks muuta mootori seadistust.
The aim of this bachelor thesis is to investigate influence of gasoline and biofuel mixture to spark-ignition engine's exhaust emission. In the process, fuel blending test were made. From those results 5 different fuels were chosen to make fuel mixtures with. Every fuel mixture was made in two different volume: 15% and 25%, main component of mixture was gasoline. The tests were carried out at the Estonian University of Life Sciences technology institute laboratory. Following test were done in fuel laboratory: kinematic viscosity, destillation characteristics, relative density, vapor pressure and corrosivness. Exhaust emission was measured using Bosch exhaust-gas analyzer on a Audi 1.8l gasoline engine. CO, CO , NO , HC, O parameters were analyzed. The engine settings were kept the same throughout tests. The results show that adding biofuels to gasoline can decrease harmful substances in exhaust gases. Rapeseed oil and butanol fuel mixtures improved the burning process and decreased exhaust emissions. To achieve better results, some changes in engine settings should be made.
The aim of this bachelor thesis is to investigate influence of gasoline and biofuel mixture to spark-ignition engine's exhaust emission. In the process, fuel blending test were made. From those results 5 different fuels were chosen to make fuel mixtures with. Every fuel mixture was made in two different volume: 15% and 25%, main component of mixture was gasoline. The tests were carried out at the Estonian University of Life Sciences technology institute laboratory. Following test were done in fuel laboratory: kinematic viscosity, destillation characteristics, relative density, vapor pressure and corrosivness. Exhaust emission was measured using Bosch exhaust-gas analyzer on a Audi 1.8l gasoline engine. CO, CO , NO , HC, O parameters were analyzed. The engine settings were kept the same throughout tests. The results show that adding biofuels to gasoline can decrease harmful substances in exhaust gases. Rapeseed oil and butanol fuel mixtures improved the burning process and decreased exhaust emissions. To achieve better results, some changes in engine settings should be made.
Kirjeldus
Bakalaureusetöö
Tehnika ja tehnoloogia õppekaval
Märksõnad
bakalaureusetööd, bensiinimootorid, biokütused, heitgaaside analüsaatorid