CHF Experiments Using a 2-D Curved Test Section With Additives for IVR-ERVC Strategy
NURETH-14 - 2011 September 25-30


Presented at:
NURETH-14
2011 September 25-30
Location:
Toronto, Canada
Session Title:
C1-1 Molten Core Natural Convection, Physico-Chemical Phenomena, and Direct Containment Heating by D

Authors:
Tae Il Kim (Korea Advanced Institute of Science and Technology)
  

Abstract

This study describes critical heat flux (CHF) experiments using a 2-D curved test section with trisodium phosphate (TSP : Na3PO4) and boric acid (BA : H3BO5). The CHF values of TSP solution, BA solution, and TSP + BA solution were enhanced by as much as 50% for all experimental conditions except the condition of 150 mm radius with BA solution. The enhancement can be explained by wettability enhancement and decrease of bubble departure diameter. This CHF enhancement could provide additional thermal margin for the IVR-ERVC strategy.

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