Utjecaj lokalnih temperaturnih uvjeta na životnu dob energetskih kabela u nuklearnoj elektrani

Jakić, Irena

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scientific master's theses

Utjecaj lokalnih temperaturnih uvjeta na životnu dob energetskih kabela u nuklearnoj elektrani

Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing, 2011. urn:nbn:hr:168:878871

Jakić, Irena

University of Zagreb
Faculty of Electrical Engineering and Computing
Department of Energy and Power Systems

Cite this document

APA 6th Edition

Jakić, I. (2011). Utjecaj lokalnih temperaturnih uvjeta na životnu dob energetskih kabela u nuklearnoj elektrani (Scientific master's theses). Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing. Retrieved from https://urn.nsk.hr/urn:nbn:hr:168:878871

MLA 8th Edition

Jakić, Irena. "Utjecaj lokalnih temperaturnih uvjeta na životnu dob energetskih kabela u nuklearnoj elektrani." Scientific master's theses, University of Zagreb, Faculty of Electrical Engineering and Computing, 2011. https://urn.nsk.hr/urn:nbn:hr:168:878871

Chicago 17th Edition

Harvard

Jakić, I. (2011). 'Utjecaj lokalnih temperaturnih uvjeta na životnu dob energetskih kabela u nuklearnoj elektrani', Scientific master's theses, University of Zagreb, Faculty of Electrical Engineering and Computing, accessed 23 March 2025, https://urn.nsk.hr/urn:nbn:hr:168:878871

Vancouver

Jakić I. Utjecaj lokalnih temperaturnih uvjeta na životnu dob energetskih kabela u nuklearnoj elektrani [Scientific master's theses]. Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing; 2011 [cited 2025 March 23] Available at: https://urn.nsk.hr/urn:nbn:hr:168:878871

IEEE

I. Jakić, "Utjecaj lokalnih temperaturnih uvjeta na životnu dob energetskih kabela u nuklearnoj elektrani", Scientific master's theses, University of Zagreb, Faculty of Electrical Engineering and Computing, Zagreb, 2011. Available at: https://urn.nsk.hr/urn:nbn:hr:168:878871

Cite this item: https://urn.nsk.hr/urn:nbn:hr:168:878871

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Metadata

Title	Utjecaj lokalnih temperaturnih uvjeta na životnu dob energetskih kabela u nuklearnoj elektrani
Title (english)	Aging of power cables in nuclear power plant due to influence of local temperature conditions
Author	Irena Jakić
Mentor	Nenad Debrecin (mentor)
Committee member	Davor Grgić (predsjednik povjerenstva) MBZ: 114324
Committee member	Željko Bogdan (član povjerenstva)
Granter	University of Zagreb Faculty of Electrical Engineering and Computing (Department of Energy and Power Systems) Zagreb
Defense date and country	2011-11-29, Croatia
Scientific / art field, discipline and subdiscipline	TECHNICAL SCIENCES Electrical Engineering Power Engineering
Universal decimal classification (UDC)	621.3 - Electrical engineering
Abstract	Značajan broj nuklearnih elektrana koje su trenutno u pogonu, približavaju se kraju početno predviđenog životnog vijeka. S obzirom da dobro rade i konkurentne su, postoji interes za produljenjem njihove eksploatacije. Prije produljenja životnog vijeka, potrebno je utvrditi da li starenju izložene komponente, strukture i sustavi mogu ispuniti svoje projektom predviđene funkcije. Kabeli su važna komponenta u sigurnosti nuklearne elektrane iako sami po sebi nemaju aktivnu sigurnosnu funkciju (prenose signale za indikaciju, kontrolne i upravljačke naredbe ili energiju električkoj opremi koja izvršava sigurnosnu funkciju). Posljedično, funkcionalnost kabela nužnih za nuklearnu sigurnost je osiguravanje funkcionalnosti opreme važne za nuklearnu sigurnost. Zbog toga se rad bavi programom upravljanja starenjem kabela čiji je cilj identificiranje mehanizama i efekata starenja, te utvrditi da li su degradacije uzrokovane starenjem unutar predviđenih dopuštenih granica kako bi se osigurao siguran rad elektrane. Također, u radu se posebno analizira utjecaj promjene temperature okoline na promjenu životne dobi kabela u odnosu na kvalificiranu životnu dob. Kao ilustracija, korištenjem Arrheniusovog modela izvršen je proračun za ocjenu starenja kabela na mjestu s lokalno povišenom temperaturom.
Abstract (english)	A significant number of operating nuclear power plants is approaching the end of the initially estimated design life. Considering that plants are stable and competitive, it may be possible to extend design lives to 60 years (perhaps even longer). Before expending life time, ageing in NPPs must be effectively managed to ensure the availability of design functions throughout the plant service life. From the safety perspective, this means controlling ageing degradation and wear-out within acceptable safety limits so that adequate safety margins remain, i.e. integrity and functional capability in excess of normal operating requirements. Even though cables are not active component, they are vital components in NPPs since they link the system components with instruments and control equipment used to monitor and control the plant. Consequently, the functionality of the cable necessary for nuclear safety is necessity for ensuring the functionality of equipment relevant to nuclear safety. Since the cable ageing have been recognized as potential threat to safe operation of NPP, this thesis deals with ageing management program aimed at identifying the mechanisms and effects of aging and to determine whether the degradation caused by aging is within the stipulated tolerance limits to ensure safe operation of power plants. Also, it analyses the impact of ambient temperature changes on the cable ageing comparing to a qualified life. For an illustration, Arrhenius’s model was used to calculate cable ageing in hot spot with the increased local temperature.
Keywords
Keywords (english)
Language	croatian
URN:NBN	urn:nbn:hr:168:878871
Study programme	Title: Postgraduate master programme in electrical engineering Study programme type: university Study level: postgraduate Academic / professional title: Magistar znanosti elektrotehnike (Magistar znanosti elektrotehnike)
Catalog URL	http://lib.fer.hr/cgi-bin/koha/opac-detail.pl?biblionumber=37281
Type of resource	Text
Extent	119 str. ; 30 cm
File origin	Born digital
Access conditions	Closed access
Terms of use
Repository	FER Repository
Created on	2019-07-11 06:37:45