20.500.12556/DKUM-76576 Računalniška simulacija bencinskega motorja s pred-komoro magistrsko delo Numerical simulation of gasoline engine with pre-chamber Motorji z notranjim zgorevanjem so zaradi emisij, ki jih sproščajo, pod velikim pritiskom okoljskih predpisov. Proizvajalci avtomobilov iščejo nove načine kako povečati izkoristek zgorevanja in zmanjšati količino nastalih emisij. Da bi bili motorji z notranjim zgorevanjem konkurenčni novim, bolj zelenim pogonskim tehnologijam, se je v bencinski motor z direktnim vbrizgom vgradil sistem vžiga s pred-komoro. V magistrskem delu je opisana numerična analiza zgorevanja v motorju z direktnim vbrizgom in pred-komoro. Poudarek je na razvoju simulacijske metode v programu AVL FIRE™ in primerjavi zgorevanja v motorju z navadno svečko in v motorju s pred-komoro. Rezultati kažejo znatno povečan izkoristek zgorevanja pri uporabi pred-komore. Internal combustion engines are under great environmental pressure due to greenhouse emissions. Car manufacturers are looking for new ways of improving combustion process in sense of greater efficiency and lower emissions. To compete with new, greener technologies, such as electrical driven vehicles, a new technology of pre-chamber ignition system was implemented in direct injected gasoline engine (GDI). In scope of this master’s thesis an investigation of pre-chamber ignited GDI engine was done by means of CFD. The focus was on simulation workflow development in AVL FIRE™ program package. Special attention was also paid to investigation of differences between combustion behavior in conventional spark ignited engine and pre-chamber ignited engine. Results show that pre-chamber significantly improves combustion efficiency. računalniška dinamika tekočin motorji z notranjim zgorevanjem GDI pred-komora zgorevanje computational fluid dynamics internal combustion engines GDI pre-chamber combustion true true false [J. Popović] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2020-06-10 19:20:56 2020-07-03 08:49:14 2022-08-09 13:43:44 2020-09-11 03:17:01 2020 0 Maribor 0 Maribor VI, 64 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 2023-06-01 621.434.019(043.2) 27441667 URN:SI:UM:DK:PXPHUUC5 MAG_Popovic_Jure_2020.pdf MAG_Popovic_Jure_2020.pdf 1 07D0B92DED1BD40B79E41416A9A261C8 4bba7a98d222c86051025d9b709bd405a826a68a77f10c08039cbe43a60fa364 6340353c-7c11-11eb-bb7a-00155d0001ca 20.500.12556/dkum/27b7f66f-1856-405a-aa06-d33e002988ac https://dk.um.si/Dokument.php?lang=slv&id=143356 Fakulteta za strojništvo 0 0 0