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A novel pelton turbine model for water hammer analysisKaradžić, Uroš ; Bergant, Anton ; Vukoslavčević, PetarPričujoč prispevek prikazuje nov model peltonove turbine za analizo vodnega udara. Obravnavamo vodni udar v visokotlačni hidroelektrarni (HE) Perućica, Črna gora. V prvi fazi posodobitve in obnove so ... se zamenjale šobe (iglasti ventili) na prvih dveh peltonovih turbinah. Zapiranje šob peltonove turbine v pogojih hitre zapore in krmiljene razbremenitve stroja je modelirano z dvema različnima zakonoma zapiranja tj. dvohitrostnim zapiranjem in zapiranjem, ki upošteva dejanski (merjeni) gib igle. V modelu sta upoštevana disipacijska momenta v ohišju turbine in leajih. Raziskana je tudi zaustavitev turbine. Rezultati izračunov z uporabo stalnega modela kapljevinskega trenja in konvolucijskega nestalnega modela trenja za različne zakone zapiranja šob so primerjani z rezultati meritev na izvedbi. Rezultati izračuna in meritev se dobro ujemajo. Pokazali smo, da je vpliv nestalnega kapljevinskega trenja med prehodnimi pojavi v HE Perućica zanemarljivo majhen (počasni prehodni pojavi).Source: Strojniški vestnik = Journal of mechanical engineering. - ISSN 0039-2480 (Vol. 55, no. 6, 2009, str. 369-380)Type of material - article, component partPublish date - 2009Language - englishCOBISS.SI-ID - 11066139
source: Strojniški vestnik = Journal of mechanical engineering. - ISSN 0039-2480 (Vol. 55, no. 6, 2009, str. 369-380)
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| Database name | Field | Year |
|---|
| Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
|---|---|
| Karadžić, Uroš | ![]() |
| Bergant, Anton | 03923 |
| Vukoslavčević, Petar | ![]() |
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