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Title:Numerična simulacija vbrizgavanja piroliznega olja iz odpadne LDPE plastike v vbrizgalni šobi dizelskega motorja : diplomsko delo univerzitetnega študijskega programa I. stopnje
Authors:ID Dobaj, Andraž (Author)
ID Lešnik, Luka (Mentor) More about this mentor... New window
ID Kevorkijan, Luka (Comentor)
Files:.pdf UN_Dobaj_Andraz_2024.pdf (2,94 MB)
MD5: 32C81DB11B0F8FD875835D5E38FF5758
 
Language:Slovenian
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FS - Faculty of Mechanical Engineering
Abstract:Proučevan je bil vpliv dodatka piroliznega olja, pridobljenega iz polietilena nizke gostote dizelskemu gorivu na pojavnost kavitacije v vbrizgalni šobi dizelskega motorja. V numerični simulaciji s programsko opremo Ansys Fluent so bile upoštevane lastnosti treh različnih goriv: čistega dizelskega goriva, dizelskega goriva z dodatkom 10% in 20% piroliznega olja (volumski deleži). Analiza rezultatov je pokazala, da dodajanje piroliznega olja dizelskemu gorivu vpliva na pojavnost kavitacije. Najnižja pojavnost kavitacije je bila zabeležena pri sto odstotnem dizelskem gorivu, najvišja pa pri gorivu z dodatkom 20% piroliznega olja. Pirolizno olje, pridobljeno iz polietilena nizke gostote ima nižji vrednosti viskoznosti in gostote kot dizelsko gorivo. Možno je sklepati, da nižji vrednosti viskoznosti in gostote vplivata na večjo pojavnost kavitacije pri gorivu z višjim volumskim deležem piroliznega olja iz polietilena nizke gostote v zmesi.
Keywords:kavitacija, računalniška dinamika tekočin, pirolizno olje, polietilen nizke gostote, vbrizgalna šoba, dizelski motor
Place of publishing:Maribor
Place of performance:Maribor
Publisher:[A. Dobaj]
Year of publishing:2024
Number of pages:1 spletni vir (1 datoteka PDF (IX, 52 f.))
PID:20.500.12556/DKUM-87752 New window
UDC:621.43.038(043.2)
COBISS.SI-ID:221777667 New window
Publication date in DKUM:08.01.2025
Views:169
Downloads:70
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FS
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Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:27.03.2024

Secondary language

Language:English
Title:Numerical simulation of pyrolysis oil injection from waste LDPE plastic in a diesel injector nozzle
Abstract:The effect of the addition of pyrolysis oil, derived from low density polyethylene to diesel fuel on the occurrence of cavitation in the injector nozzle of a diesel engine was evaluated. The properties of three different fuels were considered in a numerical simulation with Ansys Fluent software: pure diesel fuel, diesel fuel with 10% and 20% pyrolysis oil added (volume fractions). The analysis of the results showed, that the addition of pyrolysis oil to diesel fuel has an effect on the occurrence of cavitation. The lowest occurrence of cavitation was recorded with 100% diesel fuel and the highest with fuel containing 20% pyrolysis oil. Pyrolysis oil derived from low density polyethylene has lower viscosity and density values than diesel fuel. It can therefore be concluded, that lower values of viscosity and density influence the higher occurrence of cavitation in fuels with a higher volume fraction of low density polyethylene pyrolysis oil in the mixture.
Keywords:cavitation, computational fluid dynamics, pyrolysis oil, low density polyethylene, injector, diesel engine


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