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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
An Experimental Research of Natural Circulation Heat Transfer for PRHR Heat Exchanger in AP1000
Author(s)
Minghui Duan1, Yuzhou Chen1, Yvfeng Lv1, Weiqing Li1, Keming Bi1, Wei Wang1, Kaiwen Du1 and Han Wang2
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DOI:10.17265/1934-8975/2016.09.005
Affiliation(s)
1. China Institute of Atomic Energy, P.O. Box 275(59), Beijing 102413, China
2. State Nuclear Power Technology Research & Development Centre, Beijing 102209, China
ABSTRACT
The heat transfer
characteristics of the PRHR (passive residual heat removal) HX (heat exchanger)
are very important to reactor design and safety assessment of AP1000. The
purpose of the present experiment was to obtain the natural circulation data in
HX to research the heat transfer behavior. The PRHR HX was simulated by three C-type
tubes with prototype sizes immerged in a cooling tank. Separate-effect tests of
natural circulation in HX tubes have been performed within wide conditions
which could cover the operation conditions in AP1000. The experiment provided
lots of important data to indicate heat transfer phenomena of PRHR HX. The test
conditions were calculated by RELAP5/MOD3.3. The calculation results agreed
well with the experiment. RELAP5 could be applied with proper correlations to
analyze the heat transfer in PRHR HX under the test conditions.
KEYWORDS
PRHR HX, natural circulation, separate-effect tests, AP1000.
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