zaključna naloga Univerzitetnega študijskega programa I. stopnje Strojništvo - Razvojno raziskovalni program
Nik Reberšek (Author), Mihael Sekavčnik (Mentor), Boštjan Drobnič (Co-mentor)

Abstract

V zaključni nalogi je obravnavana tlačnovodna jedrska elektrarna, ki temelji na enakem principu delovanja kakor jedrska elektrarna Krško. Jedrski sistem smo iz teorije pretvorili v računski model v programskem orodju IPSEpro. Pri analizi smo pod drobnogled vzeli hitrostne razmere v visokotlačni turbini ter preverili, kako padec tlaka sveže pare, ki se dovaja iz uparjalnika, vpliva na hitrostne razmere prve turbinske stopnje visokotlačne parne turbine. Z analitično določenimi trikotniki hitrosti prve turbinske stopnje pri začetnem tlaku smo primerjali trikotnike hitrost pri spremenjenem tlaku. Ugotovili smo, da se s padcem tlaka znižuje izstopna hitrost pare iz turbine, spremenijo se koti vektorjev hitrosti, kar lahko negativno vpliva na izkoristek same parne turbine s tem pa tudi na izkoristek jedrske elektrarne.

Keywords

diplomske naloge;jedrska elektrarna;parne turbine;prva turbinska stopnja;enakotlačna stopnja;trikotniki hitrosti;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL FS - Faculty of Mechanical Engineering
Publisher: [N. Reberšek]
UDC: 621.039:621.1(043.2)
COBISS: 133740291 Link will open in a new window
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Downloads: 59
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Other data

Secondary language: English
Secondary title: Effect of fresh steam pressure variation on the speed conditions in the first stage of a steam turine of a pressurised water nuclear power plant
Secondary abstract: The final thesis deals with a pressurised water nuclear power plant based on the same operating principle as the Krško nuclear power plant. The nuclear system was converted from theory to a computational model in the IPSEpro software tool. The analysis looked at the speed conditions in the high-pressure turbine and examined how the pressure drop of the fresh steam coming from the evaporator affects the speed conditions of the first turbine stage of the high-pressure steam turbine. Using the analytically determined first turbine stage velocity triangles at the initial pressure, the velocity triangles at the changed pressure were compared. We have found that as the pressure drops, the exit velocity of the steam from the turbine decreases and the angles of the velocity vectors change, which can have a negative impact on the efficiency of the steam turbine itself and thus on the efficiency of the nuclear power plant.
Secondary keywords: thesis;nuclear power plant;steam turbine;first turbine stage;equal pressure stage;velocity triangles;
Type (COBISS): Final paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Fak. za strojništvo
Pages: XIV, 35 f.
ID: 16448448