Assessment of CHF correlations for internally heated concentric annulus channels

Cited 4 time in webofscience Cited 0 time in scopus
  • Hit : 230
  • Download : 0
The existing CHF correlations for internally heated concentric annulus channels are assessed using KAIST CHF database for uniformly heated vertical annuli. Five annulus CHF correlations (Jannsen-Kervinen, Barnett, Levitan-Lantsman, Doerffer et al., and Bobkov et al.) are chosen for assessment based on literature survey and Groeneveld et al.'s CHF table for round tube is also assessed for comparison. Among the above correlations, one is inlet-condition type and others local conditions type. To make the comparison meaningful, the local-condition-type correlations are assessed in two ways: direct substitution method (DSM) and heat balance condition method (HEM). Totally 1125 data are classified into 10 groups based on pressure and mass flux conditions and correlations are assessed to each group separately. Prediction capability of each correlation depends on the data group and none shows the best prediction over the entire group. In overall, the correlations by Doerffer et al. and Jannsen et al. appear to be the best, but Barnett or Levitan-Lantsman correlations also show reasonable prediction for most groups. However, the low-pressure, low flow CHFs are not well predicted by any correlations. The CHF table for round tubes overpredicts the CHF in annuli at fixed local conditions. Copyright (C) 1996 Elsevier Science Ltd
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Issue Date
1996-12
Language
English
Article Type
Article
Keywords

FLUX

Citation

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, v.23, no.8, pp.1077 - 1086

ISSN
0735-1933
URI
http://hdl.handle.net/10203/77300
Appears in Collection
NE-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 4 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0