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Title: Studies of Forced-Convection Heat Transfer Augmentation in Large Containment Enclosures

Heat transfer enhancement due to jet mixing inside a cylindrical enclosure is discussed. This work addresses conservative heat transfer assumptions regarding mixing and condensation that have typically been incorporated into passive containment design analyses. This research presents the possibility for increasing decay heat removal of passive containment systems under combined natural and forced convection. Eliminating these conservative assumptions could result in a changed containment design and reduce the construction cost. It is found that the ratio of forced- and free-convection Nusselt numbers can be predicted as a function of the Archimedes number and a correlated factor accounting for jet orientation and enclosure geometry.
Authors:
;
Publication Date:
OSTI Identifier:
786054
Report Number(s):
NONE; ISSN 0003-018X; CODEN TANSAO
ISSN 0003-018X; CODEN TANSAO; TRN: US0108805
Resource Type:
Conference
Resource Relation:
Conference: 2001 Annual Meeting, Milwaukee, WI (US), 06/17/2001--06/21/2001; Other Information: Transactions of the American Nuclear Society, volume 84; PBD: 17 Jun 2001
Research Org:
University of California, Berkeley, California (US)
Sponsoring Org:
US Department of Energy (US)
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; AFTER-HEAT REMOVAL; CONTAINMENT SYSTEMS; FORCED CONVECTION; NATURAL CONVECTION; NUSSELT NUMBER; AUGMENTATION CONTAINMENT; FORCED CONVECTION; HEAT TRANSFER; JETS; MIXING; CYLINDERS; AFTER-HEAT REMOVAL; NUSSELT NUMBER