Effect of bundle size on cladding deformation in LOCA simulation tests. [PWR; BWR] Page: 3 of 24
24 pagesView a full description of this article.
Extracted Text
The following text was automatically extracted from the image on this page using optical character recognition software:
shroud tests. All the B-5 simulators burst at approximately
the same temperature; however, the interior simulators burst
generally at much lower pressures than the exterior ones and
their performance did not agree as well with the prediction.
It was concluded that for conditions conducive to large
deformation at least two concentric rings of deforming guard
simulators are necessary to model radial temperature and
mechanical boundary effects of large arrays in LOCA simulation
tests and that flow area restriction may be underestimated by
small unconstrained bundle tests.
Keywords: Zircaloy, nuclear fuel cladding, tubes, burst
tests, loss-of—coolant-accident, deformation,
boundary conditions, rod-to-rod interactions,
fuel rod simulators.
1. INTRODUCTION
The acceptance criteria1 established by the Nuclear Regulatory Com-
mission for emergency core cooling systems (ECCS) in light water reactors
requires that the calculated changes in core geometry shall bo such that
the core remains amenable to cooling during a loss-of-coolant accident
(LOCA). Compliance with the acceptance criteria is demonstrated by de-
tailed analyses and evaluations of various postulated design-basis acci-
dents (DUA) using computer models. To bo acceptable, tho modols must be
based on applicable data in such a way that tho dogree of swelling and
incidence of rupture are not underestimated. For this reason single rod
and multirod LOCA simulation tests are conducted to provide a basis for
Upcoming Pages
Here’s what’s next.
Search Inside
This article can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Article.
Chapman, R.H.; Crowley, J.L. & Longest, A.W. Effect of bundle size on cladding deformation in LOCA simulation tests. [PWR; BWR], article, January 1, 1982; Tennessee. (https://digital.library.unt.edu/ark:/67531/metadc1063572/m1/3/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.