Conference Proceedings Paper
Experimental Investigation of Quench Phenomena and Two-Phase Flow Behavior for Hot Horizontal Tubes Well Above the Limiting Temperature for Solid–Liquid Contact
NURETH-14 - 2011 September 25-30
Kifah Takrouri (McMaster University)
John Luxat (McMaster University)
Mohamed Hamed (McMaster University)
Quench cooling of a hot dry surface involves the rapid decrease in surface temperature by a sudden contact with a coolant. Situations involving quenching are encountered in a number of postulated accidents in Canada Deuterium Uranium (CANDU) reactors, such as quenching of a hot calandria tube in certain Loss of Coolant Accidents (LOCA). In this study, an experimental setup has been built and a series of experiments were conducted to investigate quenching of hot horizontal tubes by a water multi-jet system. The effects of key role parameters on the re-wetting delay time, the re-wetting front velocity and the quench and re-wetting temperatures were investigated. These variables were found to be strongly dependent on water subcooling. The effects of initial surface temperature, jet velocity and surface curvature were also investigated.
Individual Conference-Paper Copies (Electronic Where Available):
- For CNS members, the first 5 copies per calendar year are free, and additional copies are $10 each.
- For non-members, the price is $25 for the first Conference-paper copy in a request, and $10 each for additional copies of papers in the same conference and in the same request.
- Contact the CNS office to order reprints.