TRANSIENT ANALYSIS OF A CONDENSATION EXPERIMENT IN THE NONCONDENSABLEGAS-FILLED CLOSED-LOOP USING AN INVERTED U-TUBE

Authors
CHOI CJ LEE SY
Citation
Cj. Choi et Sy. Lee, TRANSIENT ANALYSIS OF A CONDENSATION EXPERIMENT IN THE NONCONDENSABLEGAS-FILLED CLOSED-LOOP USING AN INVERTED U-TUBE, Annals of nuclear energy, 23(14), 1996, pp. 1179-1188
Citations number
8
Categorie Soggetti
Nuclear Sciences & Tecnology
Journal title
Annals of nuclear energy → ACNP
ISSN journal
03064549
Volume
23
Issue
14
Year of publication
1996
Pages
1179 - 1188
Database
ISI
SICI code
0306-4549(1996)23:14<1179:TAOACE>2.0.ZU;2-G
Abstract
Two-phase transient phenomena in the noncondensable gas-filled closed loop was investigated numerically using the RELAP5/MOD3 code. Analyses for three different modes observed in the inverted U-tube experiment, i.e., reflux condensation, natural circulation, and oscillatory mode between these two modes were performed. Major thermal-hydraulic phenom ena were predicted well, however, system pressure and pressure drop at the U-tube riser side were overpredicted than experimental data. High er frequent flow oscillation than the data was also predicted. Copyrig ht (C) 1996 Elsevier Science Ltd