0
Research Papers: Nuclear Power

Effect of CANDU Bundle-Geometry Variation on Dryout Power

[+] Author and Article Information
Laurence K. H. Leung

 Atomic Energy of Canada Limited, Chalk River, ON, K0J 1J0, Canada

J. Eng. Gas Turbines Power 131(2), 022906 (Jan 06, 2009) (10 pages) doi:10.1115/1.3043821 History: Received August 11, 2008; Revised August 14, 2008; Published January 06, 2009

Dryout powers have been evaluated at selected inlet-flow conditions for two proposed designs of Canada deuterium uranium, CANDU® (a registered trademark of Atomic Energy of Canada Limited (AECL)) bundles and compared with those of the 37-element and CANDU Flexible, CANFLEX® (a registered trademark of AECL and Korea Atomic Energy Research Institutes (KAERI)) bundles. These proposed designs consist of a large center element (18 mm for one design and 20 mm for the other) and three rings of elements of 11.5 mm in outer diameter. The critical heat flux for each bundle design has been predicted using the correlation derived with Freon data obtained from the corresponding full-scale bundle test. An improvement in dryout power has been shown for the proposed design having a 20 mm center element with a radial power profile corresponding to the natural-uranium fuel as compared with other bundles, particularly the natural-uranium 37-element bundle, with a symmetric-cosine axial power profile. The dryout power improvement is further enhanced for the upstream-skewed axial power profile.

FIGURES IN THIS ARTICLE
<>
Copyright © 2009 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

Schematic of MR-3 heat transfer loop

Grahic Jump Location
Figure 2

Instrumentation setup at the vertical test station

Grahic Jump Location
Figure 3

Comparison of bundle geometry

Grahic Jump Location
Figure 4

Comparison of dryout power measurements

Grahic Jump Location
Figure 5

Comparison of experimental CHF values

Grahic Jump Location
Figure 6

Axial power profiles covered in the assessment

Grahic Jump Location
Figure 7

Dryout power predictions for bundle strings of NU radial power profile and symmetric cosine axial power profile

Grahic Jump Location
Figure 8

Dryout power improvements for bundle strings of NU radial power profile and symmetric cosine axial power profile

Grahic Jump Location
Figure 9

Dryout power predictions for variant bundle strings of NU radial power profile and upstream-skewed axial power profile

Grahic Jump Location
Figure 10

Dryout power improvements for variant bundle strings of NU radial power profile having upstream-skewed axial power profile

Grahic Jump Location
Figure 11

Variation in radial power profile at locations of 2.4% SEU bundle string

Grahic Jump Location
Figure 12

Predicted CHF ratios with respect to fresh NU fuel at locations of 2.4% SEU bundle string

Grahic Jump Location
Figure 13

Dryout power predictions for variant bundle strings of 2.4% SEU radial power profiles and upstream-skewed axial power profile

Grahic Jump Location
Figure 14

Dryout power improvements for variant bundle strings of 2.4% SEU radial power profile having upstream-skewed axial power profile

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In