20.500.12556/DKUM-41593 Numerična optimizacija dizelskega motorja Numerical optimization of diesel engine Namen diplomske naloge je bil z numerično optimizacijo določiti optimalni kot začetka tlačenja goriva dizelskega motorja MAN D 2566 MUM, pri uporabi čistega biodizelskega goriva, s ciljem zmanjšati škodljive emisije. Numerična optimizacija se je izvedla v točki 8 ESC testa z optimizacijskimi metodami Nelder-Mead, NLPQL, Levenberg-Marquardt in BFGS. Najboljše rezultate sta dali metodi NLPQL in Levenberg-Marquardt, medtem ko sta bili metodi Nelder-Mead in BFGS neuspešni pri iskanju optimalnega kota. Ugotovljeno je bilo majhno odstopanje rezultatov numerične optimizacije od eksperimentalno določenega optimalnega kota začetka tlačenja goriva za celoten ESC test, saj optimalni kot ni enak na vseh obratovalnih režimih. The purpose of diploma work was to determine the optimal injection pump timing of diesel engine MAN D 2566 MUM with numerical optimization by using neat biodiesel fuel with the aim to reduce harmful emissions. Numerical optimization was carried out in mode 8 of the ESC test with optimization methods Nelder-Mead, NLPQL, Levenberg-Marquardt and BFGS. The best results were given by NLPQL and Levenberg-Marquardt methods, while Nelder-Mead and BFGS methods were unsuccessful in finding optimal injection pump timing. There was a small deviation of numerical optimization results compared to experimentally determined optimal injection pump timing for complete ESC test because the optimal injection pump timing is not the same at all engine operating regimes. numerična optimizacija biodizelsko gorivo MAN D 2566 MUM emisije numerical optimization biodiesel MAN D 2566 MUM emissions true true false [S. Krenker] Slovenski jezik Angleški jezik Diplomsko delo 2013-09-01 20:39:16 2013-10-17 08:56:13 2022-05-05 03:07:32 2021-04-24 03:16:04 2013 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.436:519.61/.64(043.2) 17490454 URN:SI:UM:DK:LTT5IHGP UNI_Krenker_Srecko_2013.pdf UNI_Krenker_Srecko_2013.pdf 1 F740D01218246DB6BD22633B2DE5287D ad92e2c8b0fcfd5cc902dd427c32be4706ff52fdb2209f7dbdae837c268724af 653e8191-7c0a-11eb-bb7a-00155d0001ca https://dk.um.si/Dokument.php?lang=slv&id=59299 Fakulteta za strojništvo 0 0 0