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Title:NUMERIČNA ANALIZA IN IZRAČUN ENERGETSKIH KARAKTERISTIK FRANCISOVE TURBINE
Authors:ID Klemenić, Nik (Author)
ID Lipej, Andrej (Mentor) More about this mentor... New window
Files:.pdf DIP_Klemenic_Nik_2025.pdf (12,55 MB)
MD5: C420B3891382F44D8BA2EEABBC1F000A
 
Language:Slovenian
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:UNM FS - University of Novo mesto - Faculty of Mechanical engineering
Abstract:Francisove turbine so ključen člen hidroelektrarne. Z uporabo Francisove turbine pretvarjamo potencialno energijo vode v mehansko energijo, ki pa se nato na generatorju pretvori v električno energijo. Ker se danes države zavezujejo h koriščenju obnovljivih virov energije, je zelo pomembno, da sistemi, ki bazirajo na njej, delujejo čim bolj optimalno ter s čim večjim izkoristkom. To se navezuje tudi na vodne turbine, kjer pravilno oblikovan gonilnik Francisove turbine ključno vpliva na doseganje visokega izkoristka, večjega kot 95 %. V diplomski nalogi je bil razvit model gonilnika Francisove turbine ter nato na podlagi numeričnih analiz dodatno izpopolnjen do te mere, da dosega izkoristke večje od 94 %. Numerični rezultati vseh štirih modelov so prikazani v obliki vektorjev hitrosti, tokovnic ter porazdelitve tlaka po površini lopatic gonilnika. Na podlagi rezultatov so bile izrisane karakteristične krivulje izkoristka in moči na vseh štirih modelih gonilnika Francisove turbine.
Keywords:turbina, gonilnik, lopatice, hitrostni trikotnik, volumenski pretok, višinska razlika, vrtilni moment, izkoristek, totalni tlak
Year of publishing:2025
PID:20.500.12556/ReVIS-12353 New window
COBISS.SI-ID:254745091 New window
Publication date in ReVIS:03.10.2025
Views:247
Downloads:13
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Secondary language

Language:English
Title:NUMERICAL ANALYSIS AND CALCULATION OF ENERGY CHARACTERISTIC OF A FRANCIS TURBINE
Abstract:Francis turbines represent a fundamental component of hydroelectric power plants. Through the application of a Francis turbine, the potential energy of water is converted into mechanical energy, which is subsequently transformed into electrical energy via a generator. As nations increasingly commit to the utilization of renewable energy sources, it is imperative that such systems operate at optimal performance and with the highest possible efficiency. This is particularly relevant for hydraulic turbines, where the precise design of the Francis turbine runner plays a pivotal role in achieving efficiency levels exceeding 95 %. In this thesis, a model of the Francis turbine runner was developed and refined through numerical simulations to achieve efficiency levels greater than 94 %. The numerical results for all four runners are presented in terms of velocity vectors, streamlines, and pressure distributions across the blade surfaces. Based on these results, characteristic efficiency and power curves were generated for each of the four Francis turbine runners.
Keywords:turbine, runner, blades, velocity triangle, volumetric flow, head, torque, efficiency, total pressure


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