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Title: Experimental study on the operational and the cooling performance of the APR+ passive auxiliary feedwater system

Abstract

The passive auxiliary feedwater system (PAFS) is one of the advanced safety features adopted in the APR+ which is intended to completely replace the conventional active auxiliary feedwater system. The PAFS cools down the steam generator secondary side and eventually removes the decay heat from the reactor core by introducing a natural driving force mechanism; i.e., condensing steam in nearly-horizontal U-tubes submerged inside the passive condensation cooling tank (PCCT). With an aim of validating the cooling and operational performance of the PAFS, the separate effect test, PASCAL (PAFS Condensing Heat Removal Assessment Loop), is being performed to experimentally investigate the condensation heat transfer and natural convection phenomena in the PAFS. A single nearly-horizontal U-tube whose dimension is same as the prototypic U-tube of the APR+ PAFS is simulated in the PASCAL test. By performing the PASCAL test, the major thermal-hydraulic parameters such as local/overall heat transfer coefficients, fluid temperature inside the tube, wall temperature of the tube, and pool temperature distribution in the PCCT were produced not only to evaluate the current condensation heat transfer model but also to present database for the safety analysis related with the PAFS. (authors)

Authors:
; ; ; ; ;  [1]
  1. Korea Atomic Energy Research Inst., 150 Dukjin-dong, Yuseong-gu, Daejeon (Korea, Republic of)
Publication Date:
Research Org.:
American Nuclear Society, 555 North Kensington Avenue, La Grange Park, IL 60526 (United States)
OSTI Identifier:
22107826
Resource Type:
Conference
Resource Relation:
Conference: ICAPP '12: 2012 International Congress on Advances in Nuclear Power Plants, Chicago, IL (United States), 24-28 Jun 2012; Other Information: Country of input: France; 5 refs.; Related Information: In: Proceedings of the 2012 International Congress on Advances in Nuclear Power Plants - ICAPP '12| 2799 p.
Country of Publication:
United States
Language:
English
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; COOLING; FEEDWATER; FLUIDS; HEAT; NATURAL CONVECTION; NUCLEAR POWER PLANTS; PERFORMANCE; REACTOR CORES; SAFETY ANALYSIS; STEAM CONDENSERS; STEAM GENERATORS; TEMPERATURE DISTRIBUTION; THERMAL HYDRAULICS; TUBES

Citation Formats

Kang, K. H., Bae, B. U., Kim, S., Cho, Y. J., Park, Y. S., and Kim, B. D. Experimental study on the operational and the cooling performance of the APR+ passive auxiliary feedwater system. United States: N. p., 2012. Web.
Kang, K. H., Bae, B. U., Kim, S., Cho, Y. J., Park, Y. S., & Kim, B. D. Experimental study on the operational and the cooling performance of the APR+ passive auxiliary feedwater system. United States.
Kang, K. H., Bae, B. U., Kim, S., Cho, Y. J., Park, Y. S., and Kim, B. D. Sun . "Experimental study on the operational and the cooling performance of the APR+ passive auxiliary feedwater system". United States.
@article{osti_22107826,
title = {Experimental study on the operational and the cooling performance of the APR+ passive auxiliary feedwater system},
author = {Kang, K. H. and Bae, B. U. and Kim, S. and Cho, Y. J. and Park, Y. S. and Kim, B. D.},
abstractNote = {The passive auxiliary feedwater system (PAFS) is one of the advanced safety features adopted in the APR+ which is intended to completely replace the conventional active auxiliary feedwater system. The PAFS cools down the steam generator secondary side and eventually removes the decay heat from the reactor core by introducing a natural driving force mechanism; i.e., condensing steam in nearly-horizontal U-tubes submerged inside the passive condensation cooling tank (PCCT). With an aim of validating the cooling and operational performance of the PAFS, the separate effect test, PASCAL (PAFS Condensing Heat Removal Assessment Loop), is being performed to experimentally investigate the condensation heat transfer and natural convection phenomena in the PAFS. A single nearly-horizontal U-tube whose dimension is same as the prototypic U-tube of the APR+ PAFS is simulated in the PASCAL test. By performing the PASCAL test, the major thermal-hydraulic parameters such as local/overall heat transfer coefficients, fluid temperature inside the tube, wall temperature of the tube, and pool temperature distribution in the PCCT were produced not only to evaluate the current condensation heat transfer model but also to present database for the safety analysis related with the PAFS. (authors)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {7}
}

Conference:
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