You need JavaScript to view this

Development of low flow critical heat flux correlation for HANARO

Abstract

A low flow CHF correlation was developed for the safe operation of HANARO during the natural circulation cooling and the assessment of safety during the low flow condition of accident. The analytical model was applied to estimate the heat flux and the temperature distributions along the periphery of the fin at CHF conditions, and the predicted wall temperature at the sheath between the fins by the model agreed well with the measured one. The parametric trends of the CHF data for the finned geometry agreed with the general understanding from the previous studies for the unfinned annulus or tube geometries. It is revealed that the fin does not affect the CHF for low flow condition, although it increase the critical power due to larger heat transfer area. As the existing CHF correlation is proposed to predict the CHF for both finned and unfinned geometries at low flow and low pressure conditions. The developed correlation predicts the experimental CHF data with RMS errors of 13.7 %. (author). 19 refs., 3 tabs., 23 figs.
Publication Date:
Jul 01, 1997
Product Type:
Technical Report
Report Number:
KAERI/TR-905/97
Reference Number:
SCA: 220600; 420400; PA: AIX-29:025594; EDB-98:059583; SN: 98001959799
Resource Relation:
Other Information: PBD: Jul 1997
Subject:
22 NUCLEAR REACTOR TECHNOLOGY; 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; CORRELATIONS; CRITICAL HEAT FLUX; FINS; MRR REACTOR; NATURAL CONVECTION; REACTOR SAFETY; TEMPERATURE DISTRIBUTION
OSTI ID:
606393
Research Organizations:
Korea Atomic Energy Research Institute, Taejon (Korea, Republic of).
Country of Origin:
Korea, Republic of
Language:
English
Other Identifying Numbers:
Other: ON: DE98622129; TRN: KR9800106025594
Availability:
INIS; OSTI as DE98622129
Submitting Site:
KRN
Size:
36 p.
Announcement Date:

Citation Formats

Park, Cheol, Chae, Hee Taek, and Hang, Gee Yang. Development of low flow critical heat flux correlation for HANARO. Korea, Republic of: N. p., 1997. Web.
Park, Cheol, Chae, Hee Taek, & Hang, Gee Yang. Development of low flow critical heat flux correlation for HANARO. Korea, Republic of.
Park, Cheol, Chae, Hee Taek, and Hang, Gee Yang. 1997. "Development of low flow critical heat flux correlation for HANARO." Korea, Republic of.
@misc{etde_606393,
title = {Development of low flow critical heat flux correlation for HANARO}
author = {Park, Cheol, Chae, Hee Taek, and Hang, Gee Yang}
abstractNote = {A low flow CHF correlation was developed for the safe operation of HANARO during the natural circulation cooling and the assessment of safety during the low flow condition of accident. The analytical model was applied to estimate the heat flux and the temperature distributions along the periphery of the fin at CHF conditions, and the predicted wall temperature at the sheath between the fins by the model agreed well with the measured one. The parametric trends of the CHF data for the finned geometry agreed with the general understanding from the previous studies for the unfinned annulus or tube geometries. It is revealed that the fin does not affect the CHF for low flow condition, although it increase the critical power due to larger heat transfer area. As the existing CHF correlation is proposed to predict the CHF for both finned and unfinned geometries at low flow and low pressure conditions. The developed correlation predicts the experimental CHF data with RMS errors of 13.7 %. (author). 19 refs., 3 tabs., 23 figs.}
place = {Korea, Republic of}
year = {1997}
month = {Jul}
}