Računalniška simulacija bencinskega motorja s pred-komoro

magistrsko delo

Jure Popović (Author), Breda Kegl (Mentor), Andrej Poredoš (Co-mentor)

Abstract

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.

Keywords

računalniška dinamika tekočin;motorji z notranjim zgorevanjem GDI;pred-komora;zgorevanje;magistrske naloge;

Data

Language:	Slovenian
Year of publishing:	2020
Typology:	2.09 - Master's Thesis
Organization:	UM FS - Faculty of Mechanical Engineering
Publisher:	[J. Popović]
UDC:	621.434.019(043.2)
COBISS:	27441667
Views:	548
Downloads:	0
Average score:	0 (0 votes)
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Other data

Secondary language:	English
Secondary title:	Numerical simulation of gasoline engine with pre-chamber
Secondary abstract:	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.
Secondary keywords:	computational fluid dynamics;internal combustion engines GDI;pre-chamber;combustion;
Type (COBISS):	Master's thesis/paper
Embargo end date (OpenAIRE):	2023-06-01
Thesis comment:	Univ. v Mariboru, Fak. za strojništvo, Energetsko, procesno in okoljsko strojništvo
Pages:	VI, 64 str.
ID:	11813687