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Title: Ignalina NPP Unit 2 Gas Gap Probabilistic Evaluation

Abstract

One of the factors limiting RMBK service life is the closure of the gas gap between the pressure tubes and the graphite masonry. The objective of the present work is to develop a mathematical model for Unit 2 of the Ignalina nuclear power plant (NPP) reactor, in Lithuania, which estimates the probability of the presence of a gas gap for different periods of operation. The calculations are based on collected data of graphite and pressure tube diameters and burn up measurements in period 1983-2005. There were no performed enough measurements for Unit 2, but big amount of statistical data was available for Unit 1. Therefore Unit 1 data properties were analyzed and constructed model was applied for INPP reactor Unit 2. The main analysis results are gas gap existence probabilities evaluation and the issued channel measuring strategies for the next planed preventive maintenance period for Ignalina NPP. (authors)

Authors:
; ;  [1]
  1. Lithuanian Energy Institute, Breslaujos str. 3, LT-44403 Kaunas (Lithuania)
Publication Date:
Research Org.:
The ASME Foundation, Inc., Three Park Avenue, New York, NY 10016-5990 (United States)
OSTI Identifier:
20997027
Resource Type:
Conference
Resource Relation:
Conference: 14. International conference on nuclear engineering (ICONE 14), Miami - Florida (United States), 17-20 Jul 2006; Other Information: Country of input: France
Country of Publication:
United States
Language:
English
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; BURNUP; EVALUATION; GRAPHITE; IGNALINA-1 REACTOR; IGNALINA-2 REACTOR; LITHUANIA; MAINTENANCE; MATHEMATICAL MODELS; NUCLEAR POWER PLANTS; PRESSURE TUBES; PROBABILISTIC ESTIMATION; PROBABILITY; REACTOR OPERATION; SERVICE LIFE

Citation Formats

Volskiene, Jurgita Simaityte, Augutis, Juozas, and Uspuras, Eugenijus. Ignalina NPP Unit 2 Gas Gap Probabilistic Evaluation. United States: N. p., 2006. Web.
Volskiene, Jurgita Simaityte, Augutis, Juozas, & Uspuras, Eugenijus. Ignalina NPP Unit 2 Gas Gap Probabilistic Evaluation. United States.
Volskiene, Jurgita Simaityte, Augutis, Juozas, and Uspuras, Eugenijus. 2006. "Ignalina NPP Unit 2 Gas Gap Probabilistic Evaluation". United States.
@article{osti_20997027,
title = {Ignalina NPP Unit 2 Gas Gap Probabilistic Evaluation},
author = {Volskiene, Jurgita Simaityte and Augutis, Juozas and Uspuras, Eugenijus},
abstractNote = {One of the factors limiting RMBK service life is the closure of the gas gap between the pressure tubes and the graphite masonry. The objective of the present work is to develop a mathematical model for Unit 2 of the Ignalina nuclear power plant (NPP) reactor, in Lithuania, which estimates the probability of the presence of a gas gap for different periods of operation. The calculations are based on collected data of graphite and pressure tube diameters and burn up measurements in period 1983-2005. There were no performed enough measurements for Unit 2, but big amount of statistical data was available for Unit 1. Therefore Unit 1 data properties were analyzed and constructed model was applied for INPP reactor Unit 2. The main analysis results are gas gap existence probabilities evaluation and the issued channel measuring strategies for the next planed preventive maintenance period for Ignalina NPP. (authors)},
doi = {},
url = {https://www.osti.gov/biblio/20997027}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jul 01 00:00:00 EDT 2006},
month = {Sat Jul 01 00:00:00 EDT 2006}
}

Conference:
Other availability
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