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Pregled bibliografske jedinice broj: 678934

Numerical simulations of exhaust valve cooling


Cetina, Danijel; Medica, Vladimir; Mrakovčić, Tomislav
Numerical simulations of exhaust valve cooling // Proceedings of Innovative Automotive Technology IAT 2012 / Fajdiga, Matija ; Klemenc, Jernej (ur.).
Novo Mesto: Fakulteta za strojništvo, 2012. str. 291-298 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)


Naslov
Numerical simulations of exhaust valve cooling

Autori
Cetina, Danijel ; Medica, Vladimir ; Mrakovčić, Tomislav

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of Innovative Automotive Technology IAT 2012 / Fajdiga, Matija ; Klemenc, Jernej - Novo Mesto : Fakulteta za strojništvo, 2012, 291-298

Skup
10th International Conference and Exhibition IAT 2012

Mjesto i datum
Novo Mesto, Slovenija, 12-13.04.2012

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Exhaust valve; cooling; numerical simulations

Sažetak
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.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo



POVEZANOST RADA


Projekt / tema
069-0691668-1725 - Numeričke simulacije i optimizacija brodskih dizelskih motora (Vladimir Medica, )
152-0691668-1729 - Istraživanje kontrole i upravljanja procesom izgaranja kod motora SUI (Marinko Stojkov, )

Ustanove
Tehnički fakultet, Rijeka,
Strojarski fakultet, Slavonski Brod