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Science and Technology of Nuclear Installations
Volume 2017, Article ID 3497103, 10 pages
Research Article

Heat Transfer Analysis of Passive Residual Heat Removal Heat Exchanger under Tube outside Boiling Condition

School of Mechanical and Power Engineering, East China University of Science and Technology, Room 637, Building 17, 130 Meilong Road, Shanghai 200237, China

Correspondence should be addressed to Xuesheng Wang; nc.ude.tsuce@sxgnaw

Received 11 July 2016; Revised 19 October 2016; Accepted 26 January 2017; Published 6 March 2017

Academic Editor: Eugenijus Ušpuras

Copyright © 2017 Yanbin Liu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The Passive Residual Heat Removal Heat Exchanger (PRHR HX) is an important part of the Passive Residual Heat Removal System (PRHRS). The C-shaped bundle is being used in the PRHR HX. A test facility of C-shaped tube immerged in a water tank was built to research the heat transfer of the PRHR HX. Through the experiments, three regions were found within a particular period of time during the heating process in the tank: natural convection region, transition region, and saturation boiling region. For the tube outside saturation boiling, comparisons of three different correlations in literatures with the experimental data were carried out. Results show that the Rohsenow correlation provides a best-estimate fit with the experimental results. For the tube outside transition region, a formulation is put forward to reduce error based on the Rohsenow subcooled boiling correlation.