Optimizacija sesalnega kanala bencinskega motorja z direktnim vbrizgom

magistrsko delo

Robert Fridman (Author), Breda Kegl (Mentor), Luka Lešnik (Co-mentor), Gregor Kotnik (Co-mentor)

Abstract

V magistrskem delu je obravnavana optimizacija sesalnega kanala motorja z notranjim zgorevanjem in direktnim vbrizgom goriva v valj s pomočjo uporabe računalniške dinamike tekočin. Cilj dela je bil povišanje pretočnega števila in T-vrtinčnega števila z optimizacijo geometrijskih parametrov za celoten režim delovanja sesalnih ventilov. V ta namen smo določili in validirali numerični model sesalnega kanala ter določili najvplivnejše geometrijske parametre. Parametre smo variirali v sklopu optimizacije, ki je bila izvedena zgolj za dvig ventilov za 12.1 mm, pri katerem smo dosegli 0.51-odstotno izboljšanje pretočnega števila in 0.95-odstotno izboljšanje T-vrtinčnega števila. Za celoten režim delovanja sesalnih ventilov se je v povprečju pretočno število povišalo za 0.45 % in T-vrtinčno število za 1.93 %.

Keywords

sesalni kanal;parametrična optimizacija;optimizacijska metoda AS;magistrske naloge;

Data

Language:	Slovenian
Year of publishing:	2020
Typology:	2.09 - Master's Thesis
Organization:	UM FS - Faculty of Mechanical Engineering
Publisher:	[R. Fridman]
UDC:	621.434.038(043.2)
COBISS:	47239427
Views:	365
Downloads:	53
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Intake port optimization of gasoline direct injection engine
Secondary abstract:	In scope of this master thesis the focus is set on geometrical optimization of a GDI IC engine intake port with use of CFD. Goal of the thesis is to increase both discharge coefficient and tumble for the given intake port at all valve opening positions. In order to reach the goal, we have defined and verified the base numerical model. The most influential geometrical parameters were defined and varied in scope of parametric optimization that was done for 12.1mm valve lift and reached 0.51% improvement of discharge coefficient and 0.95% improvement of tumble. For all valve lift positions we have reached an average of 0.45% improvement of discharge coefficient and 1.93% improvement of tumble.
Secondary keywords:	Intake port;parametric optimization;adjoint solver optimization;
Type (COBISS):	Master's thesis/paper
Thesis comment:	Univ. v Mariboru, Fak. za strojništvo, Energetsko, procesno in okoljsko strojništvo
Pages:	X, 60 str.
ID:	12193829