20.500.12556/DKUM-71991 Vpliv bioetanola na tokovne razmere v vbrizgalni šobi dizelskega motorja diplomsko delo The influence of bioethanol fuel on flow conditions in diesel engine injectors Namen diplomskega dela je ugotoviti vpliv dodatka bioetanola k dizelskem gorivu na tokovne razmere v vbrizgalni šobi oziroma v izvrtini za vbrizg goriva dizelskega motorja. Uporabljena metoda dela je bila numerična simulacija vbrizga goriva, ki je bila izvedena v programskem paketu AVL FIRE. Simulacije so se razlikovale le po lastnostih goriv, in sicer deležu etanola. Tlak vbrizga in vrtilna hitrost motorja sta bila za vse mešanice enaka. Iz rezultatov simulacij, ki prikazujejo razvoj parne faze na steni in na izstopu iz izvrtine, je možno odčitati podobne karakteristike vbrizga kot pri konvencionalnem dizelskem gorivu. Iz tega lahko sklepamo, da so mešanice dizelskega goriva z do 15 % volumenskega deleža bioetanola primerne za uporabo v obstoječih dizelskih motorjih. The purpose of the thesis is to determine the impact of the addition of bioethanol to diesel fuel on the flow conditions inside a diesel engine fuel injector nozzle. The working method used, was a numerical fuel injection simulation, carried out using the AVL FIRE software package. The simulations differed only in terms of fuel properties, namely the proportion of ethanol. Injection pressure and the rotational speed of the engine were kept the same for all fuel mixtures. From the results of the simulations, which show the evolution of the vapor phase on the wall and at the outlet of the borehole, similar injection characteristics can be observed as with conventional diesel fuel. From this we can conclude, that blends of diesel fuel with up to 15 % of bioethanol content by volume, are suitable for use in existing diesel engines. goriva alternativna goriva bioetanol dizel dizelski motor programski paket FIRE numerična simulacija fuels alternative fuels bioethanol diesel diesel engine software package FIRE numerical simulation true true false [Ž. Budna] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2018-09-06 10:30:26 2019-01-11 13:21:01 2022-08-01 21:50:03 2019-08-06 03:18:55 2018 0 Maribor 0 Maribor VII, 36 f. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.43.038(043.2) 22353942 URN:SI:UM:DK:U23FAEVY UN_Budna_Ziga_2018.pdf UN_Budna_Ziga_2018.pdf 1 3BC2378159A67BE3B079C87C28491A06 0c3d4cba409f1fbc75e36cc63afe4da037a5f447eded861884787cf537f69fac 9256550d-7c10-11eb-bb7a-00155d0001ca 20.500.12556/dkum/ea99d4ab-517b-45ea-86c0-ab53203c7430 https://dk.um.si/Dokument.php?lang=slv&id=132155 Fakulteta za strojništvo 0 0 0