diplomsko delo Visokošolskega strokovnega študijskega programa I. stopnje Strojništvo - Projektno aplikativni program
Anže Gale (Author), Mihael Sekavčnik (Mentor)

Abstract

Podaljšanje trajnostne dobe delujočih jedrskih elektrarn je temelj brezogljične oskrbe z energijo. Zanesljivo in ekonomično dolgoročno obratovanje elektrarn zahteva podrobne termoenergetske študije, ki omogočajo zgodnje odkrivanje odstopanj od normalnega obratovanja in degradacijskih procesov ter učinkovito vodenje vzdrževanja in nadgradenj. V diplomskem delu je predstavljen termodinamski model sekundarnega sistema Nuklearne elektrarne Krško (NEK), izdelan v programskem okolju IPSEpro, z namenom podpore tovrstnim študijam. Glavni prispevek dela je razvoj in implementacija lastnega modela izločevalnika kondenzata in pregrevalnika pare (MSR), ki ni na razpolago v obstoječih knjižnicah elektrarniških komponent. Predlagan model predstavlja uporabniku bolj razumljiv in fizikalni realnosti bližji način modeliranja MSR, v izvedbi eno- in dvostopenjskim pregrevanjem pare. Verifikacijo in validacijo izdelanih modelov MSR in sekundarnega sistema NEK smo izvedli na osnovi obratovalnih podatkov NEK in tehničnih poročil. Ustrezno delovanje modelov smo preverili tudi v razširjenim obratovalnih pogojih, ki jih pričakujemo ob staranju komponent in načrtovanih nadgradnjah tekom podaljšane trajnostne dobe NEK, vključno z mašenjem uparjalnikov in posodobitvami visokotlačne turbine. Rezultati so potrdili zadovoljivo točnost modela v vseh relevantnih obratovalnih pogojih.

Keywords

diplomske naloge;jedrske elektrarne;podaljšanje trajnostne dobe;sekundarni sistem;termodinamski model;izločevalniki kondenzata in pregrevalniki pare;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL FS - Faculty of Mechanical Engineering
Publisher: [A. Gale]
UDC: 621.311.25:536.7(043.2)
COBISS: 240819715 Link will open in a new window
Views: 175
Downloads: 77
Average score: 0 (0 votes)
Metadata: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Other data

Secondary language: English
Secondary title: Thermodynamic model of a moisture separator and reheater in a nuclear power plant with pressurized water reactor
Secondary abstract: Lifetime extension of existing nuclear power plants is a foundation for sustaining low-carbon electricity supply. Reliable and cost-effective long-term operation requires detailed thermodynamic studies to detect performance degradation and inform system upgrades. This work presents a thermodynamic model of the secondary system of the Krško Nuclear Power Plant (NEK), developed in IPSEpro software environment to support such studies. The main contribution of the work is the implementation of an original model for the moisture separator and reheater (MSR), which is not explicitly represented in standard commercial libraries. The model offers a physically consistent representation of physical processes occurring in MSR supporting both one- and two-stage configurations. Verification and validation of the MSR and secondary system models were performed using operational data and NEK technical reports. Additional simulations assessed model performance under conditions representative of aging-related degradation and equipment upgrades, including steam generator tube plugging and high-pressure turbine optimizations. Results confirm the sufficient predictive accuracy of the models across a range of operating conditions.
Secondary keywords: thesis;nuclear power plants;lifetime extension;secondary system;thermodynamic model;moisture separator and reheater (MSR);
Type (COBISS): Bachelor thesis/paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Fak. za strojništvo
Pages: XX,[1] f. pril., 49 str.
ID: 26471681