Advanced Technologies for Water Cooled Reactors

IAEA International Collaborative Standard Problem (ICSP) on
HWR Moderator Subcooling Requirements to Demonstrate Backup Heat Sink Capabilities of Moderator during Accidents


IAEA organizes an International Collaborative Standard Problem (ICSP) to facilitate the development and validation of computer codes for design and safety analysis of nuclear power plants. The implementation of ICSP usually includes an experiment to investigate interesting phenomena and the simulation of experiment with computer codes.

Experimental Apparatus for IAEA ICSP Test

Experimental Apparatus for IAEA ICSP Test


The IAEA prepared a new ICSP proposal on "HWR Moderator Subcooling Requirements to Demonstrate Backup Heat Sink Capabilities of Moderator during Accidents" and invites the participation of interesting institutes. The purpose of this IAEA ICSP is to provide contact boiling experimental data to assess the subcooling requirements for a heated pressure tube, plastically deforming into contact with the calandria tube during a postulated large break loss of coolant accident condition. The data can be used to assess safety analysis computer codes simulating the following phenomena:

  • Radiation heat transfer to the pressure tube

  • Pressure tube deformation or failure

  • Pressure tube to Calandria tube heat transfer

  • Calandria tube to moderator heat transfer

  • Calandria tube deformation or failure

ICSP Proposal


Meetings

The First Workshop, 19-21 November 2012, Ottawa, Canada (download Summary)


Please contact NENP Technology Development Section - Contact Point if you have any questions.