Numerical simulations of exhaust valve cooling (CROSBI ID 607171)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Cetina, Danijel ; Medica, Vladimir ; Mrakovčić, Tomislav
engleski
Numerical simulations of exhaust valve cooling
Exhaust valves in large diesel engines when operated on heavy fuel are exposed to intensive high temperature corrosion attack due to presence of the vanadium in fuel. To avoid this problem, efficient valve cooling must be applied. Cooling of the exhaust valve by coolant in the valve shaft bore is not applicable for these valves. The paper presents the results of the analysis for the exhaust valve cooling through intensively cooled valve seats. Results of numerical simulations for the valve heat-up process at engine start and in steady state operation are presented and compared to published experimental data. Details of the mathematical model using finite volume approach are presented too.
exhaust valve; cooling; numerical simulations
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Podaci o prilogu
291-298.
2012.
objavljeno
Podaci o matičnoj publikaciji
Proceedings of Innovative Automotive Technology IAT 2012
Fajdiga, Matija ; Klemenc, Jernej
Novo Mesto: Univerza v Ljubljani, fakulteta za strojništvo
Podaci o skupu
10th International Conference and Exhibition IAT 2012
predavanje
12.04.2012-13.04.2012
Novo Mesto, Slovenija