Quenching Studies on a Zircaloy Rod Bundle

[+] Author and Article Information
V. K. Dhir, I. Catton

School of Engineering and Applied Science, University of California, Los Angeles, Los Angeles, Calif. 90024

R. B. Duffey

Safety and Analysis Department, Electric Power Research Institute, Palo Alto, CA

J. Heat Transfer 103(2), 293-299 (May 01, 1981) (7 pages) doi:10.1115/1.3244456 History: Received July 21, 1980; Online October 20, 2009


Quenching data are presented for reflooding by cold water of zircaloy and stainless steel clad rod bundles. In particular a filling material (Al2 O3 ) with thermophysical properties similar to UO2 is used. The rods which are 1.1 mm in outside diameter and are 1.2 m high are arranged in a square lattice and are inductively heated. The experiments have been performed with initial rod surface temperatures up to 1400 K and flooding velocity varying over the range 1–30 cm/s. The subcooling of water at inlet was either 75 K or 50 K. Under identical flow conditions zircaloy is observed to quench faster than stainless steel. The quenching temperature and quench front velocity are found to increase with liquid subcooling and flooding velocity. The present data have been correlated and compared with existing models and correlations.

Copyright © 1981 by ASME
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