Conference Proceedings Paper
PRELIMINARY TESTS AT THE UNIVERSITY OF OTTAWA SUPERCRITICAL CO2 HEAT TRANSFER FACILITY
The 5th International Symposium on SuperCritical Water-cooled Reactors - 2011 March 13-16
Loubna Jeddi (University of Ottawa)
Kai Jiang (University of Ottawa)
Stavros Tavoularis (University of Ottawa)
De Groeneveld (University of Ottawa)
This article describes the new supercritical heat transfer test facility that has been constructed at the University of Ottawa and preliminary tests for its commissioning. The facility uses CO2 as a mediumand has three test sections: a tube with an 8 mm ID, to serve as a reference for comparisons with literature, a second tube with a 22 mm ID, and a rod bundle. The facility is designed for tests in the ranges of pressure, heat flux and mass flux that correspond to normal, enhanced and deteriorated heat transfer under conditions relevant to supercritical water cooled reactor designs. Some preliminary measurements of the heat transfer coefficient under subcritical and supercritical conditions in the 8 mm tube are presented and compared to representative correlations. This article also discusses plans for heat transfer measurements in the rod bundle and measurements of turbulence properties and temperature fluctuations using hot- and cold-wire probes in the 22 mm tube.
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