Characteristics of Transition Boiling in Sodium-Heated Steam Generator Tubes

[+] Author and Article Information
D. M. France, R. D. Carlson, T. Chiang, R. Priemer

Argonne National Laboratory, Components Technology Division, Argonne, Il. 60439

J. Heat Transfer 101(2), 270-275 (May 01, 1979) (6 pages) doi:10.1115/1.3450959 History: Received June 30, 1978; Online August 11, 2010


Thermal fluctuations were measured in the tube wall in the transition boiling zone of a full-scale LMFBR sodium-heated steam generator tube. The tube had an inside diameter = 10 mm, wall thickness = 2.90 mm, heated length = 13.1 m, and material = 2 1/4 Cr-1 Mo steel. Water flowed vertically upwards inside the straight tube, and sodium flowed counter-currently in a surrounding annulus. Results of thermal, spectral, and thermal stress analyses are presented for a test within the normal operating range of LMFBR steam generators. Results of other tests are presented that show the effects and sensitivity of sodium temperature and water pressure on the severity of the thermal fluctuations.

Copyright © 1979 by ASME
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