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Science and Technology of Nuclear Installations
Volume 2014 (2014), Article ID 286434, 8 pages
Research Article

Code Development in Coupled PARCS/RELAP5 for Supercritical Water Reactor

1School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
2Department of Engineering Physics, University of Wisconsin-Madison, Madison, WI 53705, USA

Received 6 January 2014; Revised 9 April 2014; Accepted 10 April 2014; Published 8 May 2014

Academic Editor: Jiejin Cai

Copyright © 2014 Po Hu and Paul Wilson. 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 new capability is added to the existing coupled code package PARCS/RELAP5, in order to analyze SCWR design under supercritical pressure with the separated water coolant and moderator channels. This expansion is carried out on both codes. In PARCS, modification is focused on extending the water property tables to supercritical pressure, modifying the variable mapping input file and related code module for processing thermal-hydraulic information from separated coolant/moderator channels, and modifying neutronics feedback module to deal with the separated coolant/moderator channels. In RELAP5, modification is focused on incorporating more accurate water properties near SCWR operation/transient pressure and temperature in the code. Confirming tests of the modifications is presented and the major analyzing results from the extended codes package are summarized.