Application of the leak before break (LBB) concept to a heat exchanger in a nuclear power plant View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2001-01

AUTHORS

Choon-Yeol Lee, Jae-Do Kwon, Yong-Son Lee, Il-Chan Sul

ABSTRACT

The leak before break (LBB) concept is difficult to apply to a structure with a thin tube that is immersed in a water environment. A heat exchanger in a nuclear power plant is such a structure. The present paper addresses an application of the LBB concept to a heat exchanger in a nuclear power plant. The minimum leaked coolant amount (approximately 37.9liters) containing the radioactive material which can activate the radiation detector device installed in near the heat exchanger is assumed. A postulated initial flaw size that can not grow to a critical flaw size within the time period to activate the radiation detector is justified. In this case, the radiation detector can activate the warning signal caused by coolant leakage from initially postulated flaws of the heat exchanger. The nuclear plant can safely shutdown when this occurs. Since the postulated initial flaw size can not grow to the critical flaw size, the structural integrity of the heat exchanger is not impeded. Particularly the informational scenario presented in this paper discusses an actual nuclear plant. More... »

PAGES

10-20

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/bf03184793

DOI

http://dx.doi.org/10.1007/bf03184793

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1009370274


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