Hidravlični prehodni pojavi v hidroelektrarnah z vgrajenimi Francisovimi turbinami

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Language:	Slovenian
Year of publishing:	2009
Source:	Ljubljana
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FGG - Faculty of Civil and Geodetic Engineering
Publisher:	[Jernej Mazij]
UDC:	627.83/.86(043.2)
COBISS:	4597089
Views:	1963
Downloads:	697
Average score:	0 (0 votes)
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Secondary language:	English
Secondary title:	Hydraulic transient events in hydropower plants with installed Francis turbines
Secondary abstract:	Hydraulic transient events are the result of time related changes of hydrodinamical quantities in a hydraulic passage system. Treatise of transient events is essential to ensure safe operation of the hydropower plant, and for suitable design of turbine components and related hydromechanical equipment. Causes of transient events and their characteristics in different hydraulic passage systems are presented in this work. Basic system of water hammer equation was derived, consisting of the momentun and the continuity equation. The system is solved using the characteristic method. Hydraulic turbines were defined and a description of the Francis turbine was given. Calculation of hydraulic transient events was performed for a study case of hydropower plant Cariblanco, and on the basis of comparison between numerical results and measurement, the calculation model and the calculation process was confirmed.
Secondary keywords:	transient events;water hammer;Francis turbine;numerical methods;HPP Cariblanco;hzdraulic passage system;numerical results and measurement comparison;
File type:	application/pdf
Type (COBISS):	Undergraduate thesis
Thesis comment:	Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo, Hidrotehnična smer
Pages:	XIV, 91 str.
Type (ePrints):	thesis
Title (ePrints):	Hydraulic transient events in hydropower plants with installed Francis turbines.
Keywords (ePrints):	prehodni pojavi;vodni udar;Francisova turbina;numeri ne metode;HE Cariblanco;hidravli ni preto ni sistem;primerjava izra una z meritvijo
Keywords (ePrints, secondary language):	transient events;water hammer;Francis turbine;numerical methods;HPP Cariblanco;hydraulic passage system;numerical results and measurement comparison
Abstract (ePrints):	Hidravli ni prehodni pojavi so posledica asovnih sprememb hidrodinami nih koli in hidravli nega preto nega sistema. Obravnavanje prehodnih pojavov je klju no z vidika varnega obratovanja hidroelektrarne in ustrezne kostrukcije posameznih turbinskih komponent in pripadajo e hidromehanske opreme. V delu smo navedli vzroke za nastanek prehodnih pojavov in njihove zna ilnosti v razli nih hidravli nih preto nih sistemih ter njihov pomen pri na rtovanju hidroelektrarn. Izpeljali smo osnovni sistem ena b vodnega udara, ki ga sestavljajo dinami na in kontinuitetna ena ba. Sistem ena b rešujemo z metodo karakteristik. Definirali smo pojem hidravli nega turbinskega stroja in opisali Francisovo turbino. Izra unali smo hidravli ne prehodne pojave za primer hidroelektrarne Cariblanco in na podlagi primerjave rezultatov izra una in meritve potrdili izbrani ra unski model in postopek izra una.
Abstract (ePrints, secondary language):	Hydraulic transient events are the result of time related changes of hydrodinamical quantities in a hydraulic passage system. Treatise of transient events is essential to ensure safe operation of the hydropower plant, and for suitable design of turbine components and related hydromechanical equipment. Causes of transient events and their characteristics in different hydraulic passage systems are presented in this work. Basic system of water hammer equation was derived, consisting of the momentun and the continuity equation. The system is solved using the characteristic method. Hydraulic turbines were defined and a description of the Francis turbine was given. Calculation of hydraulic transient events was performed for a study case of hydropower plant Cariblanco, and on the basis of comparison between numerical results and measurement, the calculation model and the calculation process was confirmed.
Keywords (ePrints, secondary language):	transient events;water hammer;Francis turbine;numerical methods;HPP Cariblanco;hydraulic passage system;numerical results and measurement comparison
ID:	8309922